Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Ignition ON
Observe the DTC information with a scan tool. Verify DTC P007C, P007D, P0201-P0204, P0234, P0299, P02E8, P02E9, P0641, P0651, P0697, P2008, P2009, P2010, P245C or P245D is not set.
- If a DTC is set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
- If a DTC is not set .
Engine Idling at operating temperature.
Verify the scan tool MAF Sensor parameter is between 5 and 40 g/s.
- If less than 5 g/s
  Check for intake system leaks.
  
  If no intake system leaks are found, perform Diesel Particulate Filter (DPF) Service Regeneration .
- If greater than 40 g/s
  Check for intake system leaks.
- If between 5 and 40 g/s
Verify there are no exhaust system leaks. Refer to Exhaust Leakage .
- If exhaust system leaks were found
  Repair as necessary
- If no exhaust system leaks were found
Engine idling at operating temperature and in drive.
NOTE: A/C must be in the off position
Verify using the scan tool that the Base Fuel Injector Rate parameter is between 5mm³ and 16mm³ .
- If not between 5mm ³ and 16mm ³
  Refer to Fuel Injector Balance Test with GDS 2
- If between 5mm ³ and 16mm ³
Replace the B52A Heated Oxygen Sensor 1.