Right Cylinder Lock Switch Short To Ground

Monitored & Set Condition

1. When Monitored: With ignition On.
2. Set Condition: When the BCM detects a voltage of less than .25-volts on the Right Cylinder Lock Switch MUX input for over 5 seconds, this code will set. The normal voltage on the circuit is between .25 and 5-volts depending on switch position.

Possible Causes:

• BCM - Right Cylinder Lock Switch Circuit Short To Ground
• Code Active
• Right Cylinder Lock Switch Wire Short To Ground
• Right Cylinder Lock Switch - Shorted

Testing

1. Turn the ignition on. With the DRBIII(R), erase DTC's. Unlock the door locks several times from both cylinder lock switches With the DRBIII(R), read DTC's. Does the DRBIII(R) display RIGHT CYLINDER LOCK SWITCH SHORT TO GROUND? If yes, go to next step. If no, problem is intermittent and not present at this time. Inspect the wiring and connectors and repair as necessary. Perform BODY VERIFICATION TEST  .
2. Turn the ignition off. Disconnect the Body Control Module C2 connector. Measure the resistance between ground and the Right Cylinder Lock Switch MUX circuit. Is the resistance below 1000 ohms? If yes, go to next step. If no, replace the Body Control Module. See BODY CONTROL MODULE (BCM)  for REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST  .
3. Turn the ignition off. Disconnect the Body Control Module C2 connector. Disconnect the Right Cylinder Lock Switch connector. Measure the resistance between ground and the Right Cylinder Lock Switch MUX circuit. Is the resistance below 1000 ohms ohms? If yes, repair the Right Cylinder Lock Switch wire for a short to ground. Perform BODY VERIFICATION TEST  . If no, replace the Right Cylinder Lock Switch. Perform BODY VERIFICATION TEST  .