DTC P245C:00 [MZR-CD 2.2]

id0102f3877900

DTC P245C:00

EGR cooler bypass valve control solenoid valve circuit low input
DETECTION CONDITION
•  The PCM monitors the EGR cooler bypass valve control solenoid valve control signal voltage. If the EGR cooler bypass valve control solenoid valve control signal voltage is less than 3 V for 5 s while it is turned to off, the PCM determines that the EGR cooler bypass valve control solenoid valve control circuit has a malfunction.
MONITORING CONDITIONS
―  Battery voltage: 8—20 V
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
•  PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  EGR cooler bypass valve control solenoid valve connector or terminals malfunction
•  EGR cooler bypass valve control solenoid valve malfunction
•  Short to ground or open circuit in wiring harness between main relay and EGR cooler bypass valve control solenoid valve
―  Short to ground in wiring harness between INJ 15 A fuse and EGR cooler bypass valve control solenoid valve terminal A
―  INJ 15 A fuse malfunction
―  Open circuit in wiring harness between main relay terminal C and EGR cooler bypass valve control solenoid valve terminal A
•  Short to ground in wiring harness between EGR cooler bypass valve control solenoid valve terminal B and PCM terminal 1CJ
•  PCM connector or terminals malfunction
•  Open circuit in wiring harness between EGR cooler bypass valve control solenoid valve terminal B and PCM terminal 1CJ
•  PCM 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 the 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
INSPECT EGR COOLER BYPASS VALVE CONTROL SOLENOID VALVE CONNECTOR CONDITION
•  Switch the ignition to off.
•  Disconnect the EGR cooler bypass valve control solenoid valve 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 9.
No
Go to the next step.
4
INSPECT EGR COOLER BYPASS VALVE CONTROL SOLENOID VALVE
•  Inspect the EGR cooler bypass valve control solenoid valve.
•  Is there any malfunction?
Yes
Replace the EGR cooler bypass valve control solenoid valve, then go to Step 9.
(See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)
No
Go to the next step.
5
INSPECT EGR COOLER BYPASS VALVE CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT
•  EGR cooler bypass valve control solenoid valve connector is disconnected.
•  Switch the ignition to ON (engine off).
•  Measure the voltage at the EGR cooler bypass valve control solenoid valve terminal A (wiring harness-side).
•  Is the voltage B+?
Yes
Go to the next step.
No
Inspect the INJ 15 A fuse.
•  If the fuse is melt:
―  Repair or replace the wiring harness for a possible short to ground.
―  Replace the fuse.
•  If the fuse is deterioration:
―  Replace the fuse.
•  If the fuse is normal:
―  Repair or replace the wiring harness for a possible open circuit.
Go to Step 9.
6
INSPECT EGR COOLER BYPASS VALVE CONTROL SOLENOID VALVE CIRCUIT FOR SHORT TO GROUND
•  EGR cooler bypass valve control solenoid valve connector is disconnected.
•  Switch the ignition to off.
•  Inspect for continuity between EGR cooler bypass valve control solenoid valve terminal B (wiring harness-side) and body ground.
•  Is there continuity?
Yes
If the short to ground circuit could be detected:
•  Repair or replace the wiring harness for a possible short to ground.
If the short to ground circuit could not be detected:
•  Replace the PCM (short to ground in the PCM internal circuit).
Go to Step 9.
No
Go to the next step.
7
INSPECT PCM CONNECTOR CONDITION
•  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 Step 9.
No
Go to the next step.
8
INSPECT EGR COOLER BYPASS VALVE CONTROL SOLENOID VALVE CIRCUIT FOR OPEN CIRCUIT
•  EGR cooler bypass valve control solenoid valve and PCM connectors are disconnected.
•  Inspect for continuity between EGR cooler bypass valve control solenoid valve terminal B (wiring harness-side) and PCM terminal 1CJ (wiring harness-side).
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to the next step.
9
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Switch the ignition to ON.
•  Perform the Pending Trouble Code Access Procedure.
•  Is the PENDING CODE for this 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.
10
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.