DTC P0111 [MZI-3.7]
id0102d2803600
|
DTC P0111 |
IAT sensor circuit range/performance |
|---|---|
|
DETECTION CONDITION
|
• Indicates the IAT rationality test has failed. This DTC indicates that the IAT value is higher than a calibrated value and could prevent 1 or more on-board diagnostic (OBD) monitors from completing.The PCM runs this logic after an engine off and a calibrated soak period (typically 6 hours) This soak period allows IAT and CHT to stabilize and not differ by more than a calibrated value. DTC P0111 is set when: the IAT at engine start exceeds the CHT by more than a calibrated value, typically 17 °C {30 °F}.
|
|
POSSIBLE CAUSE
|
• IAT sensor malfunction
|
Diagnostic procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
|
Yes
|
Go to the next step.
|
|
No
|
Record FREEZE FRAME 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 IAT SENSOR
• Inspect IAT sensor.
• Is IAT sensor normal?
|
Yes
|
Go to the next step.
|
|
No
|
Replace MAF/IAT sensor, then go to the next step.
|
||
|
4
|
VERIFY TROUBLESHOOTING OF DTC P0111 HAS BEEN COMPLETED
• Verify that all disconnected connectors reconnected.
• Clear the DTC from the PCM memory using the M–MDS.
• Start engine and run engine under FREEZE FRAME DATA condition.
• Is PENDING CODE for this DTC present?
|
Yes
|
Replace PCM, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
5
|
VERIFY AFTER REPAIR PROCEDURE
• Perform “AFTER REPAIR PROCEDURE”.
• Are any DTC present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.7].)
|
|
No
|
Troubleshooting completed.
|
||