Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects one of the following conditions:
- The air inlet pressure for the left turbocharger is above the default value of
7 kPa (28 inches of H2O) for five seconds. - The air inlet pressure for the right turbocharger is above the default value of
7 kPa (28 inches of H2O) for five seconds.
System Response:
The ECM will log the event.
Possible Performance Effect:
- None
Troubleshooting:
- There may be a problem with the air inlet system.
- There may be a problem with one of the air inlet pressure sensors.
Test Step 1. Check for "ACTIVE" Diagnostic Codes
- Start the AVSpare Electronic Technician (ET).
- Turn the keyswitch to the ON position. The engine should be OFF.
- Check for any active diagnostic codes or logged diagnostic codes.
Expected Result:
There are no diagnostic codes that are present.
Results:
- OK - There are no diagnostic codes that are present. Proceed to Test Step 2.
- Not OK - There are diagnostic codes that are present.
Repair: Repair the diagnostic codes that are present. Refer to the appropriate topic in the "Troubleshooting With a Diagnostic Code" section of this manual.
Ensure that the repair eliminates the problem.
STOP
Test Step 2. Perform a Check of the Air Inlet System
- Perform a check of the air inlet system. Refer to the Testing and Adjusting manual for information on inspecting the air inlet and exhaust system.
Expected Result:
There are no problems with the air inlet system.
Results:
- OK - There may be an intermittent problem.
Repair: Monitor the operation of the engine. Repair the problem. Ensure that the repair eliminates the problem.
STOP
- Not OK - There is a problem with the air inlet system.
Repair: Repair the problem. Ensure that the repair eliminates the problem.
STOP