RAM 1500 Truck 4WD V8-5.7L VIN D (2005)
Q: Is the voltage between 4.6 and 5.2 volts?
YES: Go To 3
NO: Go To 4
3. (Z463) CYLINDER LOCK SWITCH GROUND OPEN
Using a 12-volt test light connected to 12-volts, check the (Z463) Ground circuit.
Q: Does the test light illuminate brightly?
YES: Replace the Cylinder Lock Switch. 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 (Z463) Ground 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
4. (G163) CYLINDER LOCK SWITCH MUX OPEN
Turn the ignition off.
Disconnect the Instrument Cluster C4 connector.
Measure the resistance of the (G163) Cylinder Lock Switch Mux circuit between the Switch connector and the Instrument Cluster connector.
Q: Is the resistance below 5.0 ohms?
YES: Go To 5
NO: Repair the (G163) Cylinder Lock Switch Mux 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
5. (G163) CYLINDER LOCK SWITCH MUX WIRE SHORT TO GROUND
