Chrysler 300M 2002 Service Manual page 2231

POWER DOOR LOCKS/RKE
Symptom:
*DRIVER DOOR FAILS TO UNLOCK FROM ANY SWITCH
DRIVER DOOR UNLOCK RELAY FUSED B(+) OPEN
RELAY CONTROL CIRCUIT CHECK
JUNCTION BLOCK - DRIVER DOOR UNLOCK RELAY CONTROL CKT OPEN
BODY CONTROL MODULE - DRIVER DOOR UNLOCK RELAY DRIVER OPEN
TEST
1 Remove the Driver Door Unlock Relay from the Junction Block.
Using a 12-volt test light connected to ground, check both Fused B(+) circuits in the
Driver Door Unlock Relay connector (cavities 87 and 88).
Does the test light illuminate brightly in both connectors?
Yes → Go To 2
→ Replace the Junction Block.
No
2 Remove the Driver Door Unlock Relay from the Junction Block.
Connect a 12-volt Test Light between cavities 88 and 90 in the Driver Door Unlock
Relay connector.
Using the DRBIII, enter Body Computer then Actuator Tests and actuate the Drv
Door Unlock Relay.
Does the test light flash on and off as the relay is actuated?
Yes → Replace the Driver Door Unlock Relay.
→ Go To 3
No
3 Turn the ignition off.
Remove the Driver Door Unlock Relay from the Junction Block.
Remove the Body Control Module from the Junction Block.
Measure the resistance of the Driver Door Unlock Relay Control circuit between the
Driver Door Unlock Relay connector cavity 90 and Junction Block Body Control
Module connector cavity 13.
Is the resistance below 1.0 ohm?
Yes → Replace the Body Control Module.
→ Replace the Junction Block.
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
508
APPLICABILITY
All
All
All