Diagnostic Test

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

REPLACE THE IGNM IF THE DTC IS ACTIVE

Turn the ignition on.
With the scan tool, record and erase the RF-Hub DTCs.
Turn the ignition off.
Turn the ignition on and wait 30 seconds.
With the scan tool, read the active DTCs.
Does the scan tool display: B1A7B-00-IMMOBILIZER ANTENNA (IGNM) as ACTIVE?

Yes
- Replace the Ignition Node Module (IGNM) in accordance with the Service Information. Refer to MODULE, IGNITION NODE, REMOVAL .
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
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 correct pin tension.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .