Diagnostic Test

Turn the ignition on.

With the scan tool, record and erase DTCs.

Wait 30 seconds.

With the scan tool, read DTCs.

Does the scan tool display this DTC as active? 

Yes 

1. Go To  2.

No 

1. The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
2. Perform BODY VER TEST - VER 1 .

Fig 1: Ignition Switch Harness Connector - Pins 5 And 3

Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Ignition Switch harness connector.

Connect a jumper wire between the (F20) Fused Ignition Switch Output (Run/Start) circuit and the (A106) Fused B+ circuit.

With the scan tool, erase and read DTCs.

Does the scan tool display DTC: B2109-IGNITION SWITCH SENSE INPUT CIRCUIT HIGH as active? 

Yes 

1. Replace the Ignition Switch in accordance with the service information.
2. Perform BODY VER TEST - VER 1 .

No 

1. Go To  3.

Fig 2: Measuring The Resistance Between The Ignition Switch Sense Circuit And Ground

Courtesy of CHRYSLER LLC

Remove the jumper wire.

Disconnect the BCM C5 harness connector.

Measure the resistance between the (G20) Ignition Switch Sense circuit and ground.

Is the resistance below 10K ohms? 

Yes 

1. Repair the (G20) Ignition Switch Sense circuit for a short to ground.
2. Perform BODY VER TEST - VER 1 .

No 

1. Replace the BCM in accordance with the service information.
2. Perform BODY VER TEST - VER 1 .