Diagnostic Test

WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
NOTE:
If a 5-Volt reference DTC is present, repair that DTC before proceeding with this test.

NOTE:
If DTCs P018B, P018C or P018D are present, repair that DTC before proceeding with this test.
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
FUEL RAIL PRESSURE SENSOR
1. Visually inspect the fuel system for signs of a leak or restriction.
  Were any fuel system leaks or restrictions found?
  
  Yes.
  - Perform the appropriate repairs.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
FUEL RAIL PRESSURE SENSOR
1. Perform the diagnostic procedure for CHECKING THE FUEL DELIVERY SYSTEM. Refer to DIAGNOSIS AND TESTING .
  Were there any repairs made based on the results of CHECKING THE FUEL DELIVERY SYSTEM?
  
  Yes.
  - Repair is complete.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No.
  - Replace the Fuel Rail Pressure Sensor in accordance with the Service Information.
  - Go To 4
POWERTRAIN CONTROL MODULE
1. Let the engine run until it reaches normal operating temperature.
2. With the scan tool, record any DTC's.
  Did this DTC return?
  
  Yes
  - Replace the Powertrain Control Module in accordance with the Service Information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Repair is complete.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .