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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 418 (5.7L CNG - DTCS P060B To P2128 - 2500 Hd) >> Diagnosis And Testing >> P1198-Fuel Injector Power Relay Control Circuit Performance >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 2500 HD and 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    1. Start the engine.
    2. Test drive the vehicle long enough to enter CNG fuel mode. Do not cycle the ignition off after the test drive is completed.
    3. With the scan tool, select view DTCs.

      Is the status active or pending for this DTC?

      Yes 

      • Go To  2

      No 

  2. GASOLINE FUEL INJECTOR RELAY 
    1. Turn the ignition off.
    2. Replace the Gasoline Fuel Injector Relay in accordance with the service information.
    3. Turn the ignition on.
    4. With the scan tool, erase DTCs.
    5. Start the engine.
    6. Test drive the vehicle long enough to enter CNG fuel mode. Do not cycle the ignition off after the test drive is completed.
    7. With the scan tool, select view DTCs.

      Did the DTC return?

      Yes 

      • Replace the Powertrain Control Module in accordance with the service information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Repair complete.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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