Diagnostic Test

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

CHECK FOR INFORMATION RELATED TO THIS DTC
1. Check for related Service Bulletins and any other official OEM documentation related to this DTC.
  Were any related Service Bulletins or official OEM documentation related to this DTC available?
  
  Yes
  - Repair the condition by performing the related procedures outlined in the Service Bulletin or official OEM documentation.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 2
CHECK THE LEFT BANK VARIABLE VALVE TIMING SYSTEM VVT INTAKE SOLENOID (K78) 2/1
1. Check that the left bank variable valve timing system VVT Intake Solenoid (K78) 2/1 is powered correctly.
  Is the power supply correct?
  
  Yes
  - Go To 3
  No
  - Restore correct power supply.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK CONNECTIONS ON LEFT BANK VARIABLE VALVE TIMING SYSTEM VVT INTAKE SOLENOID 2/1 AND PCM-2
1. Check for loose, damaged or corroded connections on the left bank variable valve timing system VVT Intake Solenoid (K78) 2/1 or on the slave PCM-2.
  Are there any loose or damaged connections?
  
  Yes
  - Repair the wiring connections as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
CHECK WIRING BETWEEN LEFT BANK VARIABLE VALVE TIMING SYSTEM VVT INTAKE SOLENOID (K78) 2/1 AND PCM-2
1. Check the wiring for an open circuit or high resistance between the left bank variable valve timing system VVT Intake Solenoid (K78) 2/1 and PIN 23 of the connector on the engine side of the PCM-2.
  Is there a high resistance or open condition in the wiring?
  
  Yes
  - Repair the open circuit or high resistance in the wiring.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
CHECK WIRING BETWEEN LEFT BANK VARIABLE VALVE TIMING SYSTEM VVT INTAKE SOLENOID (K78) 2/1 AND PCM-2
1. Check for a short circuit in the wiring between the left bank variable valve timing system VVT Intake Solenoid (K78) 2/1 and PIN 23 of the connector on the engine side of the PCM-2.
  Is there a short circuit in the wiring?
  
  Yes
  - Repair the short circuit in the wiring.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 6
CHECK OPERATION OF THE LEFT BANK VARIABLE VALVE TIMING SYSTEM VVT INTAKE SOLENOID 2/1
1. Check that the left bank variable valve timing system VVT Intake Solenoid 2/1 is working properly.
  Is the operation of the left bank variable valve timing system VVT Intake Solenoid 2/1 incorrect?
  
  Yes
  - Replace the left bank variable valve timing system VVT Intake Solenoid 2/1.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 7
CHECK SCAN TOOL EQUIPMENT
1. Connect the scan tool to the slave PCM-2 and check that the engine oil pressure is correct by running the procedure.
  Incorrect oil pressure due to leaks?
  
  Yes
  - Eliminate leaks and restore correct engine oil pressure.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - End of diagnosis.