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DTC P06B8:00 [TCM (ET6A-EL, ET6AX-EL)]

DTC P06B8:00 [TCM (ET6A-EL, ET6AX-EL)]


 id0502q9325000

Outline

System malfunction location

NVRAM malfunction

Detection condition
•  Under the following condition, TCM internal NVRAM data retention/read/write disabled:
―  Battery voltage is 8 V or more.
Fail-safe
•  Not applicable
Possible cause
•  TCM initial learning error
•  Control valve body malfunction
―  TCM internal NVRAM malfunction
System wiring diagram
•  Not applicable
Connector diagram
•  Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
•  Record the freeze frame data/snapshot data.
Note
•  Recording can be facilitated using the screen capture of the PC function.
Go to the next step.
2
VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
•  Verify related Service Bulletins, on-line repair information, or Service Information availability.
•  Is any related information available?
Yes
Perform repair or diagnosis according to the available information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
PERFORM INITIAL LEARNING
•  Perform the initial learning.
•  Clear the DTC using the M-MDS.
•  Perform the following procedure to ensure that the DTC has been resolved:
1.  Switch the ignition ON (engine off or on).
•  Perform the DTC inspection using the M-MDS.
•  Is the same Pending DTC present?
Yes
Replace the control valve body, then go to repair completion verification.
No
DTC troubleshooting completed.
Repair completion verification
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Clear the DTC using the M-MDS.
•  Perform the following procedure to ensure that the DTC has been resolved:
1.  Switch the ignition ON (engine off or on).
•  Perform the DTC inspection using the M-MDS.
•  Are any DTCs present?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.