Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Using the scan tool, record and erase the DTCs.
2. Cycle the ignition to the Lock position.
3. Try to start the engine and allow to run for 30 seconds.
4. Cycle the ignition off and then back on.
5. Using the scan tool, read the active DTCs.
  Does the scan tool display; B1A7B-01-IMMOBILIZER ANTENNA (KIN/IGNM) - GENERAL ELECTRICAL FAILURE?
  
  Yes
  - Go To 2
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and poor pin fit.
CHECK FUSE F51
1. Cycle the ignition off.
  NOTE:
  Verify Fuse 51 is fully seated in the Power Distribution Center. If the fuse is not fully seated, install the fuse properly and verify the concern exists before proceeding with the test.
2. Check Fuse 51 for an open.
  Is Fuse 51 open?
  
  Yes
  - Check the (A910) Fused B+ circuit for a short to ground.
  No
  - Go To 3
CHECK THE (A910) FUSED B(+) CIRCUIT
1. Cycle the ignition off.
2. Disconnect the Keyless Ignition Node (KIN) or Ignition Node Module (IGNM) harness connector.
3. Cycle the ignition on.
4. Measure the voltage between ground and the (A910) Fused B(+) circuit.
  Is the voltage between 11.0 and 13.0 volts?
  
  Yes
  - Replace the KIN or IGNM in accordance with the Service information. Refer to REMOVAL for KIN or REMOVAL for IGNM .
  No
  - Repair the (A910) Fused B(+) circuit for excessive resistance/voltage.