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, erase DTCs.
3. Turn the ignition off for 75 seconds.
4. Start the engine and let idle for up to five minutes.
5. With the scan tool, read DTCs.
  Did the DTC reset?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .
BATTERY
1. Load test both batteries.
  Did both batteries pass the load test?
  
  Yes
  - Replace Generator 1 in accordance with the Service Information.
  - Perform he POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Replace the weak battery in accordance with the Service Information.
  - Perform he POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .