Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool check active DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to STANDARD PROCEDURE .
CHECK THE AMMONIA SENSOR
Are the P24E1, P24EA, or U12A4 present?

Yes
- Perform the P24E1, P24EA, or U12A4 diagnostic procedure before proceeding.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
No
- Go To 3
CHECK THE AMMONIA SENSOR CONNECTOR
1. Turn the ignition off.
2. Disconnect the Ammonia Sensor from the module.
3. Visually inspect the Ammonia Sensor harness connector and terminals for the following:
  - Damaged harness connector or locking tab
  - Broken, bent, pushed out or spread terminals
  - Signs or corrosion or water intrusion
  - Missing or damaged connector seals
  Were any problems found with the connector or terminals?
  
  Yes
  - Repair or clean the connector or terminals. If appropriate repairs cannot be made, replace the Ammonia Sensor.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Replace the Ammonia Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .