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DTC P2452 [MZR-CD (RF Turbo)]

id0102f1118800

DTC P2452 | Exhaust gas pressure sensor circuit problem
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DETECTION CONDITION | • The PCM monitors the pressure by the exhaust gas pressure sensor circuit voltage. If the differential pressure is -5 kPa {-38 mmHg, -1.5 inHg} or more than 5 kPa {38 mmHg, 1.5 inHg}, the PCM determines that there is a exhaust gas pressure sensor circuit problem.
POSSIBLE CAUSE | • Exhaust gas pressure sensor malfunction • Connector or terminal malfunction • PCM malfunction

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 | VERIFY RELATED PENDING CODE OR STORED DTC • Turn the engine switch off, then to the ON position (Engine off). • Verify the related PENDING CODE or stored DTCs. • Are other DTCs present? | Yes | Go to the appropriate DTC inspection. (See DTC TABLE [MZR-CD (RF Turbo)].)
No | Go to the next step.
4 | INSPECT EXHAUST GAS PRESSURE SENSOR CONNECTOR FOR POOR CONNECTION • Turn the engine switch off. • Disconnect the exhaust gas pressure sensor connector. • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 7.
No | Go to the next step.
5 | INSPECT EXHAUST GAS PRESSURE SENSOR • Inspect the exhaust gas pressure sensor. (See EXHAUST GAS PRESSURE SENSOR INSPECTION [MZR-CD (RF Turbo)].) • Is there any malfunction? | Yes | Replace the exhaust gas pressure sensor, then go to Step 7. (See EXHAUST GAS PRESSURE SENSOR/EXHAUST GAS PRESSURE CORRECTION TEMPERATURE SENSOR REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No | Go to the next step.
6 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the engine switch off. • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to the next step.
No | Go to the next step.
7 | VERIFY TROUBLESHOOTING OF DTC P2452 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the WDS or equivalent. • Start the engine. • Is the PENDING CODE for this DTC present? | Yes | Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No | Go to the next step.
8 | VERIFY AFTER REPAIR PROCEDURE • Perform the "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 | DTC troubleshooting completed.