DTC P253F [MZR-CD (RF Turbo)]

id0102f1119000

DTC P253F | Engine oil deteriorated
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DETECTION CONDITION | • The PCM calculates engine oil attenuation based on fuel injection amount during diesel particulate filter regeneration. If the calculated engine oil attenuation amount is more than 35 %, the PCM determines that the engine oil amount level is deteriorated. Diagnostic support note • The FREEZE FRAME DATA is not available. • The DTC is stored in the PCM memory.
POSSIBLE CAUSE | • Engine oil attenuation by frequently diesel particulate filter regeneration • Engine oil initialize procedure does not perform in each engine oil replacements

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | 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 repair 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 | Go to the next step.
3 | REPLACE ENGINE OIL • Replace the specified engine oil. (See ENGINE OIL REPLACEMENT [MZR-CD (RF Turbo)].) | — | Go to the next step.
4 | VERIFY TROUBLESHOOTING OF DTC P253F COMPLETED • Make sure to reconnect all disconnected connectors. • Turn the engine switch ON (engine off). • Clear the DTC from PCM memory using the WDS or equivalent. • Start the engine. • Is the same DTC present? | Yes | Replace the PCM, go to the next step. (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No | Go to the next step.
5 | VERIFY AFTER REPAIR PROCEDURE • Perform “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZR-CD (RF Turbo)].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZR-CD (RF Turbo)].)
No | Troubleshooting completed.