id0102b7705800
| DTC P0604:00 |
PCM RAM error |
|---|---|
|
DETECTION CONDITION
|
• The PCM internal RAM malfunction.
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
• DTCs are stored in PCM memory.
|
|
POSSIBLE CAUSE
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• PCM internal RAM malfunction
|
Diagnostic procedure
| STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?
|
Yes
|
Go to the next step.
|
|
No
|
Record the FREEZE FRAME DATA (Mode 2)/snapshot data on 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 DTC TROUBLESHOOTING COMPLETED
• Clear the DTC from the PCM memory using the M-MDS. (See
AFTER REPAIR PROCEDURE [L3 Turbo].)
• Start the engine.
• Perform the KOEO or KOER self test. (See
KOEO/KOER SELF TEST [L3 Turbo].)
• Is the same DTC present?
|
Yes
|
Replace the PCM, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
4
|
VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”. (See
AFTER REPAIR PROCEDURE [L3 Turbo].)
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(See
DTC TABLE [L3 Turbo].)
|
|
No
|
DTC troubleshooting completed.
|
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