DTC P1305:00, P1305:68 [MZ-CD 1.6]
id0102g8544000
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DTC P1305:00 DTC P1305:68 |
EGR calibration low |
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DETECTION CONDITION
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• The PCM monitors the EGR valve opening angle using the EGR valve position sensor. If the EGR valve opening angle decreases below the lower limit of the learning value, the PCM determines that the EGR valve has a problem.
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POSSIBLE CAUSE
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• Exhaust gas recirculation valve learned values reset procedure improperly
• EGR valve stuck in open or closed position
• EGR valve position sensor malfunction
• EGR valve actuator 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 the 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 REPAIR INFORMATION AVAILABILITY
• Verify related service repair information availability.
• Is any related repair information available?
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Yes
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Perform repair or diagnosis according to the available repair information.
• If the 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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VERIFY RELATED PENDING CODE AND/OR DTC
• Switch the ignition to ON (engine off).
• Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
• Is the other PENDING CODE/DTC also present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [MZ-CD 1.6].)
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No
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Go to the next step.
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4
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PERFORM EXHAUST GAS RECIRCULATION VALVE LEARNED VALUES RESET
• Clear the DTC from the PCM memory using the M-MDS.
• Perform the EXHAUST GAS RECIRCULATION VALVE LEARNED VALUES RESET procedures.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
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Yes
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Go to the next step.
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No
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Troubleshooting is completed.
Go to Step 8.
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5
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VISUALLY INSPECT EGR VALVE FOR CONTAMINATION
• Remove the EGR valve component.
• Visually inspect EGR valve.
• Is there any contamination?
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Yes
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Clean the EGR valve, then go to Step 7.
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No
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Go to the next step.
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6
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INSPECT EGR VALVE POSITION SENSOR
• Inspect the EGR valve position sensor.
• Is there any malfunction?
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Yes
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Replace the EGR valve component, then 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 THAT DTC P1305:00, P1305:68 TROUBLESHOOTING IS COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Run the vehicle under the FREEZE FRAME DATA stored condition.
• Is the same DTC present?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, 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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8
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VERIFY AFTER REPAIR PROCEDURE
• Perform the 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 [MZ-CD 1.6].)
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No
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DTC troubleshooting completed.
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