Diagnostic Trouble Code Descriptions for RAM 1500 Truck 4WD V8-57L VIN D (2005)
Turn the ignition off.
Disconnect the Instrument Cluster C3 harness connector.
Measure the resistance of the (G77) Left Rear Door Ajar Switch Sense circuit between the Instrument Cluster connector and the Door Latch
connector.
Q: Is the resistance below 5.0 ohms?
YES: Replace the Instrument Cluster. Perform BODY VERIFICATION TEST - VER 1. See: Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests/Body Verification Test
NO: Repair the (G77) Left Rear Door Ajar Switch Sense circuit for an open. Perform BODY VERIFICATION TEST - VER 1. See: Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body Verification Test
Left Rear Door Ajar Circuit Shorted to Ground
LEFT REAR DOOR AJAR CIRCUIT SHORTED TO GROUND