Mazda 2002 6 - Dtc P0011

F–72
ON-BOARD DIAGNOSTIC
DTC P0011
A6E397001084W02
Diagnostic procedure
End Of Sie
DTC P0011 CMP - Timing over-advanced
DETECTION
CONDITION
• Actual valve timing is over-advanced by 30 deg. from target valve timing when the OCV is controlled in the
maximum valve timing retard condition.
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction condition during first drive cycles.
• PENDING CODE is available if PCM detects the above malfunction condition.
• FREEZE FRAME DATA is available.
• DTC is stored in PCM memory.
POSSIBLE
CAUSE
• OCV malfunction
• Spool valve in OCV is stuck in advance position.
• Variable valve timing actuator is stuck in advance position.
• Loose timing belt or improper valve timing due to timing belt slippage
• PCM malfunction
STEP INSPECTION ACTION
1 PERFORM DTC CONFIRMATION PROCEDURE
• Perform DTC CONFIRMATION PROCEDURE.
(See F–66 DTC CONFIRMATION
PROCEDURE.)
• Is same DTC present?
Yes Go to next step.
No Intermittent concern exists. Go to INTERMITTENT
CONCERN TROUBLESHOOTING procedure.
(See F–227 INTERMITTENT CONCERN
TROUBLESHOOTING.)
2 INSPECT OCV FOR MALFUNCTION
• Start engine.
• Increase engine speed.
• Stop engine.
• Remove the OCV.
• Inspect the position of spool valve in OCV.
• Is spool valve located at valve retard position?
Yes Go to next step.
No Replace OCV, then go to Step 5.
3 INSPECT STOPPER PIN MECHANISM
• Remove timing belt.
• Inspect stopper pin.
(See B–32 VARIABLE VALVE TIMING
ACTUATOR INSPECTION.)
• Is stopper pin mechanism okay?
Yes Go to next step.
No Replace variable valve timing actuator, then go to Step 5.
4 INSPECT ROTOR POSITION
• Remove variable valve timing actuator.
• Is rotor position at maximum valve timing
retard?
Yes VARIABLE VALVE TIMING MECHANISM IS NORMAL
Note
• This DTC detected by intermittent concern.
• Intermittent concern might be removed by cleaning
mode of variable valve timing control function.
Go to next step.
No Replace variable valve timing actuator, go to next step.
5 VERIFY TROUBLESHOOTING OF DTC P0011
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Perform KOER self-test.
(See F–66 KOEO/KOER SELF-TEST.)
• Is same DTC present?
Yes Replace PCM, then go to next step.
(See F–43 PCM REMOVAL/INSTALLATION.)
No Go to next step.
6 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F–66 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC troubleshooting.
(See F–67 DTC TABLE.)
No Troubleshooting completed.