Chrysler 2005 Crossfire SRT6 Service Manual page 3594

23 - 46 CONVERTIBLE TOP
9078 NO COMMUNICATION WITH CENTRAL LOCKING PUMP/SECURITY SYSTEM
MODULE (CPL/SSM) (CONTINUED)
• When Monitored: Continuous with the ignition on.
• Set Condition: CAN Bus communication failure between the Central Locking Pump/Security System
Module and the Power Top Control Module (PTCM).
OPEN CAN B BUS (+) CIRCUIT
OPEN CAN B BUS (-) CIRCUIT
POWER TOP CONTROL MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
Open CAN B Bus (+) circuit
Turn the ignition off.
Disconnect the Power Top Control Module (PTCM) C1 harness con-
nector.
Disconnect the Central Locking Pump/Security System Module (CLP/
SSM) harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the CAN B Bus (+) circuit from the PTCM
C1 harness connector to the CLP/SSM harness connector.
Is the resistance below 5.0 ohm?
Yes >> Go To 2
No >> Repair the PTCM CAN B Bus (+) circuit for an open.
Perform POWER TOP CONTROL MODULE VERIFICA-
TION TEST.
Possible Causes
ZH