Chrysler 300M 2002 Service Manual page 1863

COMMUNICATION
Symptom:
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM BODY CON-
TROL MODULE
OPEN GROUND CIRCUIT AT THE JUNCTION BLOCK CONNECTOR C2
OPEN GROUND CIRCUIT AT THE JUNCTION BLOCK CONNECTOR C3
OPEN FUSED B+ CIRCUIT (JUNCTION BLOCK)
OPEN GROUND CIRCUIT AT THE JUNCTION BLOCK BODY CONTROL MODULE CONN CAV 1
OPEN GROUND CIRCUIT AT THE JUNCTION BLOCK BODY CONTROL MODULE CONN CAV 20
BODY CONTROL MODULE
TEST
1 Turn the ignition off.
Disconnect the Junction Block C2 harness connector.
Using a 12-volt test light connected to 12-volts, probe the ground circuit (Junction
Block Connector C2 cavity 8).
Is the test light illuminated?
Yes → Go To 2
→ Repair the ground circuit for an open.
No
2 Turn the ignition off.
Disconnect the Junction Block C3 harness connector.
Using a 12-volt test light connected to 12-volts, probe the ground circuit (Junction
Block Connector C3 cavity 4).
Is the test light illuminated?
Yes → Go To 3
→ Repair the ground circuit for an open.
No
3 Turn the ignition off.
Remove the Body Control Module from the Junction Block.
Using a 12-volt test light connected to ground, probe the Fused B+ circuit (cavity 7)
in the Junction Block Body Control Module connector.
Is the test light illuminated?
Yes → Go To 4
→ Replace the Junction Block in accordance with the service infor-
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
mation.
Perform BODY VERIFICATION TEST - VER 1.
140
APPLICABILITY
All
All
All