DTC P2452:00 [MZR-CD 2.2]

id0102f3153600

DTC P2452:00

Exhaust gas pressure sensor circuit problem
DETECTION CONDITION
•  The PCM monitors the pressure by the exhaust gas pressure sensor circuit voltage. If the differential pressure is –5 kPa {–0.05 kgf/cm2, –0.70 psi} or more than 5 kPa {38.0 kgf/cm2, 0.7 psi}, the PCM determines that there is a exhaust gas pressure sensor circuit malfunction.
Diagnostic support note
•  The MIL does not illuminate.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is not available.
•  The DTC is not stored in the PCM memory.
POSSIBLE CAUSE
•  Exhaust gas pressure sensor connector or terminals malfunction
•  Exhaust gas pressure sensor malfunction
•  PCM connector or terminals malfunction
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
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.
2
VERIFY RELATED PENDING CODE AND/OR DTC
•  Switch the ignition to off, then to ON (engine off).
•  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
•  Are any other PENDING CODEs and/or DTCs present?
Yes
Go to the applicable PENDING CODE or DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
No
Go to the next step.
3
INSPECT EXHAUST GAS PRESSURE SENSOR CONNECTOR CONDITION
•  Switch the ignition to off.
•  Disconnect the exhaust gas pressure sensor connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to Step 6.
No
Go to the next step.
4
INSPECT EXHAUST GAS PRESSURE SENSOR
•  Reconnect all disconnected connectors.
•  Inspect the exhaust gas pressure sensor.
•  Is there any malfunction?
Yes
Replace the exhaust gas pressure sensor, then go to Step 6.
(See EXHAUST GAS PRESSURE SENSOR/EXHAUST GAS PRESSURE CORRECTION TEMPERATURE SENSOR REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
5
INSPECT PCM CONNECTOR CONDITION
•  Switch the ignition to off.
•  Disconnect the PCM connector.
•  Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
•  Is there any malfunction?
Yes
Repair or replace the connector and/or terminals, then go to the next step.
No
Go to the next step.
6
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Start the engine.
•  Perform the DTC Reading Procedure.
•  Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
No
DTC troubleshooting completed.