Do you know anything about automotive electronic's ? Control modules ?
Vehicle Security Module
The vehicle security module receives inputs from the following:
- Door ajar switches
- Keyless entry keypad
- Ignition switch
- Remote keyless entry (RKE) transmitter
The vehicle security module uses these inputs to control an output signal to the instrument cluster which controls the battery saver relay and interior lamp relay. The battery saver relay and the interior lamp relay are internal to the instrument cluster, and are not replaceable. There could be a faulty switch input to the I/C - insturment cluster , causing the vehicle security module to activate the lock's an light's .
Interior Lighting Systems
The instrument cluster grounds the battery saver relay and interior lamp relay coils when any door ajar switch is opened, or the interior lamp (headlamp) switch is closed. The interior lamp relay then supplies voltage to the interior lamp circuit. Vehicle speed must be less than 24 km/h (15 mph) for the instrument cluster to ground the interior lamp relay. The interior lamps remain illuminated for up to 25 seconds after all doors are closed unless the instrument cluster receives an input from any of the following:
- voltage from the ignition switch.
- a vehicle speed signal.
- input from the keyless entry keypad through the vehicle security module.
- input from the RKE transmitter unlock or panic switch through
- the vehicle security module.
Do you know what DTC'S - diagnostic trouble codes are ?
Could have DTC'S stored in the following Modules
Instrument Cluster Diagnostic Trouble Code (DTC) Index
DTC
Description
Source
Action
B1320
Driver Door Ajar Circuit Open
Instrument Cluster
Go To Pinpoint Test C .
B1328
Passenger Door Ajar Circuit Open
Instrument Cluster
Go To Pinpoint Test C .
B1342
ECU is Defective
Instrument Cluster
CLEAR the DTCs. REPEAT the self test. If DTC B1342 is retrieved again, INSTALL a new instrument cluster. REFER to Section 413-01 .
All Other DTCs
-
Instrument Cluster
REFER to Section 419-10 .
Vehicle Security Module Diagnostic Trouble Code (DTC) Index
DTC
Description
Source
Action
B1322
Driver Door Ajar Circuit Short to Ground
Vehicle Security Module
Go To Pinpoint Test C .
B1330
Passenger Door Ajar Circuit Short to Ground
Vehicle Security Module
Go To Pinpoint Test C .
B1338
Door Ajar RR Circuit Short to Ground
Vehicle Security Module
Go To Pinpoint Test C .
B1342
ECU is Defective
Vehicle Security Module
CLEAR the DTCs. REPEAT the self test. If DTC B1342 is retrieved again, INSTALL a new vehicle security module. REFER to Section 419-10 .
B1574
Door Ajar LR Circuit Short to Ground
Vehicle Security Module
Go To Pinpoint Test C .
All Other DTCs
-
Vehicle Security Module
REFER to Section 419-10 .
Your best bet mite be to take to a qualified repair shop .
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