RAM 2500 Truck 4WD V8-5.7L VIN D (2005)
NO: Repair the (Z42) 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
3. IGNITION SWITCH OPEN
Connect the ignition switch connector if disconnected.
Turn ignition on.
With the ignition switch connector connected, back jumper the (G26) Key-In Ignition Switch Sense circuit to ground at the ignition switch
connector.
With the DRBIII(R), enter Instrument Cluster Input/Outputs and observe the Key-In IGN SW status.
Q: Does the DRBIII display Key-In IGN SW: Closed?
YES: Replace the Ignition Switch. Perform BODY VERIFICATION TEST - VER 1. See: Testing and Inspection/Diagnostic Trouble Code
Tests and Associated Procedures/Verification Tests/Body Verification Test
NO: Go To 4
4. KEY-IN IGNITION SWITCH SENSE CIRCUIT OPEN
Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Disconnect the Cluster C3 harness connector.
Measure the resistance of the (G26) Key-In Ignition Switch Sense circuit between the ignition switch connector and the Instrument Cluster C3
connector.
