Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
NOTE:
If DTC P025A, P0627, or P1205 are present, repair that DTC before proceeding with this test.

NOTE:
Diagnose and repair any Fuel Rail Pressure Sensor DTCs before continuing with this test procedure.
1. Turn the ignition on, engine not running.
2. With the scan tool, read DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .
CHECK THE (N13) FPCM PUMP FEED CIRCUIT FOR A SHORT TO VOLTAGE
1. Leave the ignition on.
2. Disconnect the FPCM harness connector.
3. Measure the voltage on the (N13) FPCM Pump Feed circuit at the FPCM harness connector.
  Is there voltage present?
  
  Yes
  - Repair the (N13) FPCM Pump Feed circuit for a short to voltage.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (Z916) GROUND CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
1. Turn the ignition off.
2. Leave the FPCM harness connector disconnected.
3. Measure the resistance between ground and the (Z916) Ground circuit at the FPCM harness connector.
  Is the resistance above 10k Ohms?
  
  Yes
  - Replace the Fuel Pump Control Module according to the Service Information.
    Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the (Z916) Ground circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .