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 ACTIVE DTC
1. Cycle the ignition on.
2. With the scan tool, record and erase the RF-Hub DTCs.
3. Cycle the ignition off then back on.
4. Wait 30 seconds.
5. With the scan tool, read the active DTCs.
  Does the scan tool display: B1A8F-00 IGNM PHOTO SENSOR FAILURE as active?
  
  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 correct pin tension. If this DTC ever recycles, replace the Ignition Node Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
REPLACE THE IGNM IF THE DTC IS ACTIVE
1. Replace the Ignition Node Module in accordance with Service Information.
2. With the scan tool, record and erase the RF-Hub DTCs.
3. Cycle the ignition off then back on.
4. Wait 30 seconds.
5. With the scan tool, read the active DTCs.
  Does the scan tool display: B1A8F-00 IGNM PHOTO SENSOR FAILURE as active?
  
  Yes
  - Replace the Radio Frequency Hub Module (RFHM) in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  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. If this DTC ever recycles, replace the Ignition Node Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .