Ford Fiesta Manuals

Ford Fiesta: Exterior Lighting / Turn Signal and Hazard Lamps. Diagnosis and Testing

Ford Fiesta 2014 - 2019 Service Manual / Lighting / Exterior Lighting / Turn Signal and Hazard Lamps. Diagnosis and Testing

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

DTC Chart: BCM

  BCM DTC Chart


  DTC Description Action
B123A:11 Left Front Turn Indicator: Circuit Short to Ground   GO to Pinpoint Test C
B123A:15 Left Front Turn Indicator: Circuit Short to Battery or Open   GO to Pinpoint Test C
B123B:11 Right Front Turn Indicator: Circuit Short to Ground   GO to Pinpoint Test C
B123B:15 Right Front Turn Indicator: Circuit Short to Battery or Open   GO to Pinpoint Test C
B1247:11 Left Rear Turn Indicator: Circuit Short to Ground   GO to Pinpoint Test C
B1247:15 Left Rear Turn Indicator: Circuit Short to Battery or Open   GO to Pinpoint Test C
B1248:11 Right Rear Turn Indicator: Circuit Short to Ground   GO to Pinpoint Test C
B1248:15 Right Rear Turn Indicator: Circuit Short to Battery or Open   GO to Pinpoint Test C
B1D35:23 Hazard Switch: Signal Stuck Low   GO to Pinpoint Test D
B1D36:92 Turn Indicator Switch: Performance or Incorrect Operation   GO to Pinpoint Test B
U3000:49 Control Module: Internal Electronic Failure The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the BCM can withstand. The cause of the excessive current draw MUST be corrected before a new BCM is installed. ADDRESS all other Diagnostic Trouble Codes (DTCs) first. After the cause of the concern is corrected, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
For additional information on BCM Field Effect Transistor (FET) protection,
REFER to: Module Controlled Functions - System Operation and Component Description (419-10 Multifunction Electronic Modules, Description and Operation).

Symptom Chart(s)

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Symptom Chart: Turn Signal and Hazard Lamps

  Symptom Chart


Condition Possible Sources Actions
A module does not respond to the diagnostic scan tool
  • Fuse
  • Wiring, terminals or connectors
  • Module
 
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).
The turn signal function is inoperative Refer to the Pinpoint test   GO to Pinpoint Test A
The turn signal function is always on Refer to the Pinpoint test   GO to Pinpoint Test B
One turn signal lamp is inoperative or always on Refer to the Pinpoint test   GO to Pinpoint Test C
The hazard lamp function is inoperative or always on Refer to the Pinpoint test   GO to Pinpoint Test D

Pinpoint Tests

The Turn Signal Function Is Inoperative


Refer to Wiring Diagrams Cell 90 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).

Possible Sources

  • Fuse
  • Wiring, terminals or connectors
  • Multifunction switch
  • BCM

Visual Inspection and Diagnostic Pre-checks

  • Verify BJB fuse 39 (15A) is OK.

PINPOINT TEST A: THE TURN SIGNAL FUNCTION IS INOPERATIVE
A1 CHECK THE BCM (BODY CONTROL MODULE) TURN SIGNAL SWITCH INPUT
  • Ignition ON.
  • Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).
  • Monitor the BCM TRN_SIG_SW_L and TRN_SIG_SW_R Parameter Identifications (PIDs).
  • Place the LH multifunction switch in the left turn position, right turn position and center position.

Do the BCM TRN_SIG_SW_L and TRN_SIG_SW_R Parameter Identifications (PIDs) change to On when selected?
Yes VERIFY the BJB fuse 39 (15A) is OK. If OK, GO to A4 If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.
No If both the TRN_SIG_SW_L and TRN_SIG_SW_R Parameter Identifications (PIDs) are always Off, GO to A2
If only one of the TRN_SIG_SW_L or TRN_SIG_SW_R Parameter Identifications (PIDs) are always Off, GO to A3

A2 CHECK THE LH (LEFT-HAND) MULTIFUNCTION SWITCH GROUND FOR AN OPEN
  • Ignition OFF.
  • Disconnect: LH Multifunction Switch C202.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C202-9   Ground

Is the resistance less than 3 ohms?
Yes CARRY OUT the Multifunction Switch component test.
Refer to Wiring Diagrams Cell 149 for schematic and connector information. If the multifunction switch tests bad, INSTALL a new LH multifunction switch.
REFER to: Steering Column Multifunction Switch LH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). If the LH multifunction switch tests good, GO to A4
No REPAIR the circuit.

A3 CHECK THE BCM (BODY CONTROL MODULE) TURN SIGNAL SWITCH INPUT CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect: LH Multifunction Switch C202.
  • Disconnect: BCM C2280F.
  • Measure:
    Click to display connectors

      LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C202-4   C2280F-15

    Click to display connectors

      RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C202-8   C2280F-16

Is the resistance less than 3 ohms?
Yes CARRY OUT the Multifunction Switch component test. REFER to
Refer to Wiring Diagrams Cell 149 for schematic and connector information. If the multifunction switch tests bad, INSTALL a new LH multifunction switch.
REFER to: Steering Column Multifunction Switch LH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). If the LH multifunction switch tests good, GO to A4
No REPAIR the circuit.

A4 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


The Turn Signal Function Is Always On


Refer to Wiring Diagrams Cell 90 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).


  DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B1D36:92 Turn Indicator Switch: Performance or Incorrect Operation

A continuous and on-demand DTC that sets when the BCM detects one of the following:

  • Both turn signal circuit inputs are grounded at the same time for greater than 2 seconds.
  • Either turn signal circuit inputs are grounded during the BCM self-test.

Possible Sources

  • Wiring, terminals or connectors
  • Multifunction switch
  • BCM

PINPOINT TEST B: THE TURN SIGNAL FUNCTION IS ALWAYS ON
B1 CHECK THE BCM (BODY CONTROL MODULE) TURN SIGNAL SWITCH INPUT
  • Ignition ON.
  • Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).
  • Monitor the BCM TRN_SIG_SW_L and TRN_SIG_SW_R Parameter Identifications (PIDs).
  • Place the LH multifunction switch in the left turn position, right turn position and center position.

Do the BCM TRN_SIG_SW_L and TRN_SIG_SW_R Parameter Identifications (PIDs) change to Off when not selected?
Yes GO to B3
No GO to B2

B2 CHECK THE BCM (BODY CONTROL MODULE) TURN SIGNAL SWITCH INPUT CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: LH Multifunction Switch C202.
  • Disconnect: BCM C2280F.
  • Measure:
    Click to display connectors

      LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C202-4   Ground

    Click to display connectors

      RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C202-8   Ground

Is the resistance greater than 10,000 ohms?
Yes CARRY OUT the Multifunction Switch component test.
Refer to Wiring Diagrams Cell 149 for schematic and connector information. If the multifunction switch tests bad, INSTALL a new LH multifunction switch.
REFER to: Steering Column Multifunction Switch LH (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). If the LH multifunction switch tests good, GO to B3
No REPAIR the circuit.

B3 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


One Turn Signal Lamp Is Inoperative Or Always On


Refer to Wiring Diagrams Cell 90 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).


  DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B123A:11 Left Front Turn Indicator: Circuit Short To Ground A continuous and on-demand DTC that sets when the BCM detects a short to ground from the left front turn lamp voltage supply circuit.
B123A:15 Left Front Turn Indicator: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets when the BCM detects an open or short to voltage from the left front turn lamp voltage supply circuit.
B123B:11 Right Front Turn Indicator: Circuit Short To Ground A continuous and on-demand DTC that sets when the BCM detects a short to ground from the right front turn lamp voltage supply circuit.
B123B:15 Right Front Turn Indicator: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets when the BCM detects an open or short to voltage from the right front turn lamp voltage supply circuit.
B1247:11 Left Rear Turn Indicator: Circuit Short To Ground A continuous and on-demand DTC that sets when the BCM detects a short to ground from the left rear turn lamp voltage supply circuit.
B1247:15 Left Rear Turn Indicator: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets when the BCM detects an open or short to voltage from the left rear turn lamp voltage supply circuit.
B1248:11 Right Rear Turn Indicator: Circuit Short To Ground A continuous and on-demand DTC that sets when the BCM detects a short to ground from the right rear turn lamp voltage supply circuit.
B1248:15 Right Rear Turn Indicator: Circuit Short To Battery Or Open A continuous and on-demand DTC that sets when the BCM detects an open or short to voltage from the right rear turn lamp voltage supply circuit.
U3000:49 Control Module: Internal Electronic Failure This DTC sets when the BCM has permanently shut down the output driver. The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the BCM can withstand. CORRECT the cause of the excessive current draw before installing a new BCM . For additional information on BCM Field Effect Transistor (FET) protection,
REFER to: Module Controlled Functions - System Operation and Component Description (419-10 Multifunction Electronic Modules, Description and Operation).

Possible Sources

  • Bulb
  • Wiring, terminals or connectors
  • BCM

PINPOINT TEST C: ONE TURN SIGNAL LAMP IS INOPERATIVE OR ALWAYS ON
C1 DETERMINE IF A TURN LAMP IS ALWAYS ON
  • Ignition ON.
  • Activate the hazard lamp function.
  • Observe the front and the rear turn lamps.

Is any turn lamp always on?
Yes GO to C3
No For both front and rear lamps inoperative and exterior mirror turn lamp operating correctly, GO to C16
For a front turn lamp, GO to C4
For an exterior mirror turn lamp, GO to C7
For a rear turn lamp, 4-door vehicles only, GO to C2
For a rear turn lamp, 5-door vehicles only, GO to C11

C2 CHECK STOPLAMP OPERATION
  • Apply the brake pedal and observe the stoplamps.

Do both stoplamps operate?
Yes GO to C16
No DIAGNOSE the inoperative stoplamps.
REFER to: Stoplamps (417-01 Exterior Lighting, Diagnosis and Testing).

C3 CHECK THE TURN LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect: BCM C2280A (Front Lamp and Exterior Mirror Lamp)
  • Disconnect: BCM C2280C (Rear Lamps)
  • Ignition ON.

Does the turn lamp in question continue to illuminate?
Yes REPAIR the circuit in question.
No GO to C16

C4 CHECK FOR VOLTAGE TO THE FRONT TURN LAMP
  • Ignition OFF.
  • Disconnect: LH Headlamp C1021 or RH Headlamp C1041.
  • Ignition ON.
  • Activate the hazard flasher lamp function.
  • Measure:
    Click to display connectors

      LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C1021-5   Ground

    Click to display connectors

      RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C1041-5   Ground

Does the voltage alternate from 0 to greater than 11 volts?
Yes GO to C6
No GO to C5

C5 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE FRONT TURN LAMP
  • Deactivate the hazard flasher lamp function.
  • Using a diagnostic scan tool, perform the BCM self-test.
  • Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver).
  • Ignition OFF.
  • Ignition ON.
  • Activate the hazard flasher lamp function.
  • Measure:
    Click to display connectors

      LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C1021-5   Ground

    Click to display connectors

      RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C1041-5   Ground

Does the voltage alternate from 0 to greater than 11 volts?
Yes CHECK the internal headlamp harness for open or shorted circuits and damaged or pushed-out pins. If the harness is OK, INSTALL a new bulb. If the harness is not OK, REPAIR the harness. If the harness cannot be repaired, INSTALL a new headlamp assembly.
REFER to: Headlamp Assembly (417-01 Exterior Lighting, Removal and Installation).
CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver).
No GO to C9

C6 CHECK THE HEADLAMP GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C1021-5   C1021-10

    Click to display connectors

      RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C1041-5   C1041-10

Does the voltage alternate from 0 to greater than 11 volts?
Yes CHECK the internal headlamp harness for open or shorted circuits and damaged or pushed-out pins. If the harness is OK, INSTALL a new bulb. If the harness is not OK, REPAIR the harness. If the harness cannot be repaired, INSTALL a new headlamp assembly.
REFER to: Headlamp Assembly (417-01 Exterior Lighting, Removal and Installation).
No REPAIR the circuit.

C7 CHECK FOR VOLTAGE TO THE EXTERIOR MIRROR TURN LAMP
  • Ignition OFF.
  • Disconnect: LH Exterior Mirror C521 or RH Exterior Mirror C626.
  • Ignition ON.
  • Activate the hazard flasher lamp function.
  • Measure:
    Click to display connectors

      LH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C521-8   Ground

    Click to display connectors

      RH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C626-8   Ground

Does the voltage alternate from 0 to greater than 11 volts?
Yes GO to C8
No GO to C9

C8 CHECK THE EXTERIOR MIRROR GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      LH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C521-8   C521-2

    Click to display connectors

      RH Exterior Mirror


    Positive Lead Measurement / Action Negative Lead
      C626-8   C626-2

Does the voltage alternate from 0 to greater than 11 volts?
Yes CHECK the exterior mirror harness for open or shorted circuits and damaged or pushed-out pins. If the harness is OK, INSTALL a new bulb. If the harness is not OK, REPAIR the harness. If the harness cannot be repaired, INSTALL a new exterior mirror.
REFER to: Exterior Mirror (501-09 Rear View Mirrors, Removal and Installation).
No REPAIR the circuit.

C9 CHECK THE FRONT TURN LAMP/EXTERIOR MIRROR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Deactivate the hazard flasher lamp function.
  • Disconnect: BCM C2280A
  • Disconnect: LH Headlamp C1021 and LH Exterior Mirror C521 (left turn signal inoperative).
  • Disconnect: RH Headlamp C1041 and RH Exterior Mirror C626 (right turn signal inoperative).
  • Measure:
    Click to display connectors

      LH Turn/Exterior Mirror Lamp


    Positive Lead Measurement / Action Negative Lead
      C2280A-5   Ground

    Click to display connectors

      RH Turn/Exterior Mirror Lamp


    Positive Lead Measurement / Action Negative Lead
      C2280A-6   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to C10
No REPAIR the circuit. CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver).

C10 CHECK THE FRONT TURN LAMP/EXTERIOR MIRROR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C1021-5   C2280A-5

    Click to display connectors

      RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C1041-5   C2280A-6

    Click to display connectors

      LH Exterior Mirror Lamp


    Positive Lead Measurement / Action Negative Lead
      C521-8   C2280A-5

    Click to display connectors

      RH Exterior Mirror Lamp


    Positive Lead Measurement / Action Negative Lead
      C626-8   C2280A-6

Is the resistance less than 3 ohms?
Yes GO to C16
No REPAIR the circuit.

C11 CHECK FOR VOLTAGE TO THE REAR TURN LAMP
  • Ignition OFF.
  • Disconnect: Inoperative LH Rear Lamp C414 or RH Rear Lamp C417.
  • Ignition ON.
  • Activate the hazard flasher lamp function.
  • Measure:
    Click to display connectors

      5-Door LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C414-2   Ground

    Click to display connectors

      5-Door RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C417-2   Ground

Does the voltage alternate from 0 to greater than 11 volts?
Yes GO to C13
No GO to C12

C12 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE REAR TURN LAMP
  • Deactivate the hazard flasher lamp function.
  • Using a diagnostic scan tool, perform the BCM self-test.
  • Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver).
  • Ignition OFF.
  • Ignition ON.
  • Activate the hazard flasher lamp function.
  • Measure:
    Click to display connectors

      5-Door LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C414-2   Ground

    Click to display connectors

      5-Door RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C417-2   Ground

Is the voltage greater than 11 volts?
Yes VERIFY the bulb is OK. If OK, REPAIR or INSTALL a new rear lamp jumper harness. If not OK, INSTALL a new bulb.
REFER to: Rear Lamp Bulb (417-01 Exterior Lighting, Removal and Installation).
No GO to C14

C13 CHECK THE REAR LAMP GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      5-Door LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C414-2   C414-6

    Click to display connectors

      5-Door RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C417-2   C417-6

Does the voltage alternate from 0 to greater than 11 volts?
Yes VERIFY the bulb is OK. If OK, REPAIR or INSTALL a new rear lamp jumper harness. If not OK, INSTALL a new bulb.
REFER to: Rear Lamp Bulb (417-01 Exterior Lighting, Removal and Installation).
No REPAIR the circuit.

C14 CHECK THE REAR TURN LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Deactivate the hazard flasher lamp function.
  • Disconnect: BCM C2280C.
  • Measure:
    Click to display connectors

      5-Door LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C414-2   Ground

    Click to display connectors

      5-Door RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C417-2   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to C15
No REPAIR the circuit. CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver).

C15 CHECK THE REAR TURN LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      5-Door LH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C414-2   C2280C-12

    Click to display connectors

      5-Door RH Turn Lamp


    Positive Lead Measurement / Action Negative Lead
      C417-2   C2280C-13

Is the resistance less than 3 ohms?
Yes GO to C16
No REPAIR the circuit.

C16 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


The Hazard Lamp Function Is Inoperative Or Always On


Refer to Wiring Diagrams Cell 90 for schematic and connector information.

Normal Operation and Fault Conditions


REFER to: Exterior Lighting - System Operation and Component Description (417-01 Exterior Lighting, Description and Operation).


  DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
B1D35:23 Hazard Switch: Signal Stuck Low A continuous and on-demand DTC that sets when the BCM detects a short to ground from the hazard lamp function input circuit.

Possible Sources

  • Wiring, terminals or connectors
  • FCIM
  • BCM

PINPOINT TEST D: THE HAZARD LAMP FUNCTION IS INOPERATIVE OR ALWAYS ON
D1 CHECK FOR BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform the BCM self-test.

Is DTC B1D35:23 present?
Yes GO to D2
No GO to D4

D2 ISOLATE THE FCIM (FRONT CONTROLS INTERFACE MODULE)
  • Ignition OFF.
  • Disconnect: FCIM C2402.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the BCM self-test.

Is DTC B1D35:23 retrieved again?
Yes GO to D3
No INSTALL a new FCIM .
Vehicles with AM/FM/CD,
REFER to: Front Controls Interface Module (FCIM) (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation). Vehicles with AM/FM/CD/SYNC,
REFER to: Front Controls Interface Module (FCIM) (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation). Vehicles with AM/FM/CD/SYNC/Touchscreen Display,
REFER to: Front Controls Interface Module (FCIM) (415-00B Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC/Touchscreen Display, Removal and Installation).

D3 CHECK THE HAZARD FLASHER SWITCH INPUT CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect: BCM C2280F.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280F-21   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D7
No REPAIR the circuit.

D4 BYPASS THE HAZARD FLASHER SWITCH
  • Ignition OFF.
  • Disconnect: FCIM C2402.
  • Ignition ON.
  • Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).
  • Monitor the BCM HAZARD_LP_SW PID .
  • Connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2402-1   Ground

Does the PID indicate PRESSED IN?
Yes REMOVE the fused jumper wire. GO to D6
No GO to D5

D5 CHECK THE HAZARD FLASHER SWITCH INPUT CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect: BCM C2280F.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2402-1   C2280F-21

Is the resistance less than 3 ohms?
Yes GO to D7
No REPAIR the circuit.

D6 CHECK FOR CORRECT FCIM (FRONT CONTROLS INTERFACE MODULE) OPERATION
  • Disconnect and inspect the FCIM connector.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the FCIM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new FCIM .
Vehicles with AM/FM/CD,
REFER to: Front Controls Interface Module (FCIM) (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation). Vehicles with AM/FM/CD/SYNC,
REFER to: Front Controls Interface Module (FCIM) (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Removal and Installation). Vehicles with AM/FM/CD/SYNC/Touchscreen Display,
REFER to: Front Controls Interface Module (FCIM) (415-00B Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC/Touchscreen Display, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.


    Stoplamps. Diagnosis and Testing

    Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation)...

    Autolamps. Diagnosis and Testing

    Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation)...

    Other information:

    Ford Fiesta 2014 - 2019 Service Manual: Rocker Panel - 5-Door. Removal and Installation


    Special Tool(s) / General Equipment Resistance Spotwelding Equipment Hot Air Gun Air Body Saw MIG/MAG Welding Equipment Spot Weld Drill Bit Locking Pliers Folding Rule Materials Name Specification Metal Bonding AdhesiveTA-1, TA-1-B, 3M™ 08115, LORD Fusor® 108B, Henkel Teroson EP 5055 -  Removal ..

    Ford Fiesta 2014 - 2019 Service Manual: Front Suspension - Component Location. Description and Operation


    NOTE: The ABS sensor rings are built into the seals in the front wheel bearings. They must be checked during servicing to ensure they are correctly positioned. Item Description 1 Stabilizer bar link 2 Stabilizer bar 3 Suspension unit 4 Shock absorber unit 5 Subframe 6 Lower arm 7 Subframe attac..

    Categories

    Front Strut and Spring Assembly. Removal and Installation

    Removal

    NOTE: Removal steps in this procedure may contain installation details.

    NOTE: This step is only necessary when installing a new component to the left-hand side.

    Remove the nuts and position aside the remote brake fluid reservoir.
    Torque: 62 lb.in (7 Nm) Remove the strut and spring assembly upper mount nuts.
    Torque: 22 lb.ft (30 Nm)

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