id0502j7820600
| DTC P0604:00 |
RAM malfunction |
|---|---|
|
DETECTION CONDITION
|
• RAM (in TCM) read/write error is detected.
Diagnostic support note:
• The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle.
• The AT warning light illuminates if the TCM detects the above malfunction condition during the first drive cycle.
• PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• The DTC is stored in the TCM memory.
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|
POSSIBLE CAUSE
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• TCM malfunction
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Diagnostic procedure
| STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA been recorded on the repair order?
|
Yes
|
Go to the next step.
|
|
No
|
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
|
||
|
2
|
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
• Verify related service information availability.
• Is any related repair information available?
|
Yes
|
Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the next step.
|
|
No
|
Replace the TCM, then go to the next step.
|
||
|
3
|
VERIFY TROUBLESHOOTING OF DTC P0604:00 COMPLETED
• Make sure to reconnect all the disconnected connectors.
• Clear the DTC using the M-MDS.
• Perform the following procedure to ensure that the DTC has been resolved:
• Is the same DTC present?
|
Yes
|
Replace the TCM, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
4
|
VERIFY NO DTC HAS BEEN PRESENTED
• Perform the “Reading DTCs Procedure”. (See
ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION [AW6A-EL, AW6AX-EL].)
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
|
|
No
|
DTC troubleshooting completed.
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