Ford Fiesta: Instrument Panel and Interior Switches Illumination / Instrument Panel and Interior Switches Illumination - Overview. Description and Operation
Overview
Dimmable Backlighting
Dimmable
illumination provides backlighting to all buttons during day time. It
also provides backlighting to switches and control components when the
headlamps or parking lamps are on. The level of intensity is adjusted by
pressing the instrument panel dimmer switch up to increase intensity or
down to decrease intensity.
Non-dimmable Backlighting
Non-dimmable
illumination provides backlighting to the window switches with the
ignition ON or OFF while the ignition relay is energized.
System Operation
System Diagram
Item
Description
1
MS-CAN
2
Infotainment Controller Area Network (I-CAN)
3
LIN
4
FCIM
5
IPC
6
APIM
7
FCDIM
8
Seat heater switch, passenger
9
Seat heater switch, driver
10
BCM
..
Other information:
Special Tool(s) /
General Equipment
Flat Headed Screw Driver
Transmission Jack
Vehicle/Axle Stands
Removal
NOTICE:
Suspension fasteners are critical parts that affect
performance of vital components and systems. Failure of these fasteners
may result in major service expense. Use the same or equivalent parts if
replacement is necessary. Do not use a r..
U0253:00
Normal Operation and Fault Conditions
The RCM uses information contained in messages from the APIM sent on the HS-CAN .
DTC Fault Trigger Conditions
DTC
Description
Fault Trigger Conditions
U0253:00
Lost Communication with Accessory Protocol Interface M..
Categories
Removal
NOTICE:
If the fluid is spilled on the paintwork, the affected area must be immediately washed down with cold water.
NOTE:
Removal steps in this procedure may contain installation details.
All vehicles
Remove the battery tray.
Refer to: Battery Tray - 1.6L Duratec-16V Ti-VCT (88kW/120PS) – Sigma
(414-01 Battery, Mounting and Cables, Removal and Installation).
Refer to: Battery Tray - 1.6L EcoBoost (132kW/180PS) – Sigma (414-01 Battery, Mounting and Cables, Removal and Installation).
Disconnect the vacuum tube from the brake booster and detach the routing clip.
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