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You may have a problem with the ICM (Instrument Cluster Module). Before replacing any parts I do recommend proper testing, if you need I can send test procedures as well as replacement instructions.
Power Windows-Normal Operation
Under normal operation the instrument cluster module grounds the accessory delay relay through circuit 1004 (LB/RD). Power is sent to the driver window control switch through circuit 400 (LB/BK) from the accessory delay relay. The driver window control switch is grounded through circuit 1205 (BK).
- Open in circuits 400 (LB/BK), 1205 (BK) or 1004 (LB/RD).
- Damaged accessory delay relay.
- Damaged CJB.
- Inoperative ICM.
- Inoperative driver window control switch.
Audio Unit-Normal Operation
The audio unit is powered through circuits 1001 (WH/YE), 1002 (BK/PK), and 1003 (GY/YE). The audio unit ground is received through the circuits 1204 (BK/OG), and 1203 (BK/LB) and The Speaker Walk Around Test can be carried out pressing Preset buttons 3 and 6 simultaneously.
- BJB fuse 6 (60A)
- CJB fuse(s):
- circuit 1001 (WH/YE) short to ground or open
- circuit 1002 (BK/PK) short to ground or open
- circuit 1003 (GY/YE) open or short to power
- circuit 1203 (BK/LB) open
- circuit 1204 (BK/OG) open
- circuit 1205 (BK) open
- audio unit
Interior Lighting-Normal Operation
When a door or the liftgate is closed, the ajar switch grounds the circuit from the vehicle security module. The vehicle security module monitors the door ajar switch status and transmits an interior lamp on signal to the instrument cluster indicating an entry point is open. The instrument cluster energizes the interior lamp circuits, lighting the interior lamps.
- vehicle security module
- instrument cluster
- circuit 3049 (BK/LG)
- circuit 1203 (BK/LB)
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