DTC P1303:00 [MZR-CD 2.2]
id0102f3149100
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DTC P1303:00 |
EGR calibration fault |
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DETECTION CONDITION
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• The PCM monitors the EGR valve position using EGR position sensor when switch the ignition from on to off position. The EGR valve position sensor signal voltage is more than 1.2 V or less than 0.65 V, the PCM determines that the EGR valve offset is out of range.
Diagnostic support note
• The MIL does not illuminate.
• The DTC is stored in the PCM memory.
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POSSIBLE CAUSE
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• EGR valve malfunction (stuck)
• EGR valve position sensor malfunction
• EGR valve position sensor signal voltage intermittent fault
• Fuel supply pump malfunction
• PCM malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE2)
• Is DTC P1303:00 on FREEZE FRAME DATA (mode2)?
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Yes
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Go to the next step.
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No
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Go to troubleshooting procedures for DTC in FREEZE FRAME DATA (mode2).
(See DTC TABLE [MZR-CD 2.2].)
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4
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INSPECT EGR VALVE OPERATION
• Perform EGR Valve Operation Inspection.
• Does the EGR valve operate properly?
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Yes
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Go to the next step.
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No
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Repair or replace malfunctioning part according to inspection result. Then, go to Step 6.
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5
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INSPECT EGR VALVE POSITION SENSOR
• Access EGRP PID with % and V mode.
• Switch the ignition to ON (engine off).
• Move the EGR valve using EGRP PID % mode simulation function.
• Monitor EGRP PID V mode.
• Does EGRP PID V mode moves according to EGR valve actuate value?
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Yes
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Go to the INTERMITTENT CONCERN TROUBLESHOOTING.
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No
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Replace the supply pump, then go to the next step.
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6
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VERIFY TROUBLESHOOTING OF DTC P1303:00 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Switch the ignition to ON (engine off).
• Clear the DTC from PCM memory using the M-MDS.
• Start the engine.
• Is the PENDING CODE for this DTC present?
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Yes
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Replace the PCM, go to the next step.
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No
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Go to the next step.
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7
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VERIFY AFTER REPAIR PROCEDURE
• Perform “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [MZR-CD 2.2].)
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No
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Troubleshooting completed.
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