DTC P0111:00 [MZR 1.6]
id0102h3701300
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DTC P0111:00 |
IAT sensor circuit range/performance problem |
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DETECTION CONDITION
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• The PCM compares the IAT with the ECT when the engine is running. If the IAT is higher than the ECT by 40 °C {72 °F} for 60 s, the PCM determines that there is an IAT sensor circuit range/performance problem.
Diagnostic support note
• This is a continuous monitor (CCM).
• The check engine light 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 the first drive cycle.
• FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
• DTC is stored in the PCM memory.
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POSSIBLE CAUSE
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• MAF/IAT sensor connector or terminals malfunction
• IAT sensor malfunction
• PCM connector or terminals 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 (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED
• Has the FREEZE FRAME DATA (Mode 2)/snapshot 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 (Mode 2)/snapshot data on repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• 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 the available Service 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 STORED DTC
• Switch the ignition off, then ON (engine off).
• Verify the related PENDING CODE and stored DTCs using the M-MDS.
• Are any other DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [MZR 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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INSPECT MAF/IAT SENSOR CONNECTOR CONDITION
• Switch the ignition off.
• Disconnect the MAF/IAT sensor connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminals, then go to Step 7.
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No
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Go to the next step.
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5
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INSPECT IAT SENSOR
• Inspect the IAT sensor.
• Is there any malfunction?
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Yes
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Replace the MAF/IAT sensor, 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 PCM CONNECTOR CONDITION
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminals, 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 DTC TROUBLESHOOTING COMPLETED
• Always reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine and warm it up completely.
• Perform the Pending Trouble Code Access Procedure.
• Is the PENDING CODE for this 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 [MZR 1.6].)
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No
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DTC troubleshooting completed.
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