DTC P06B8:00 [MZI-3.7]


id0102d2316200

DTC P06B8:00

Internal control module non-Volatile Random Access Memory (NVRAM) error

DETECTION CONDITION
•  This DTC indicates a concern with the ability of the PCM to correctly store permanent DTCs.
POSSIBLE CAUSE
•  PCM calibration level

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
•  Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on the repair order, then go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY RELATED PENDING CODE OR STORED DTCs
•  Turn the ignition switch off, then to the ON position (engine off).
•  Verify the related PENDING CODE or stored DTCs using the M-MDS.
•  Is other DTC present?
Yes
Go to the appropriate DTC troubleshooting.
No
Go to the next step
4
INSPECT PCM FOR LATEST CALIBRATION
•  Program the PCM to the latest calibration.
•  Turn the ignition switch to the ON position (Engine running).
•  Idle the engine.
•  Verify PENDING CODE or stored DTCs.
•  Is the same DTC present?
Yes
Go to the next step.
No
Troubleshooting completed.
5
INSPECT FOR CORRECT PCM OPERATION
•  Disconnect all the PCM connectors.
•  Visually inspect for:
―  Pushed out pins
―  Corrosion
•  Connect all the PCM connectors and verify that they seat correctly.
•  Retrieve DTCs using the M-MDS.
•  Is the same DTC present?
Yes
Go to the next step.
No
The system is correctly. Go to the next step.
6
VERIFY TROUBLESHOOTING OF DTC P06B8:00 HAS BEEN COMPLETED
•  Verify that all disconnected connectors are reconnected.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine and drive the vehicle.
•  Verify PENDING CODE or stored DTCs.
•  Is the same DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.