DTC P0113:00 [MZI-3.7]

id0102d2701500

DTC P0113:00 | IAT sensor circuit high input
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DETECTION CONDITION | • Indicates the sensor signal is more than the self-test maximum. The IAT sensor maximum is 4.6 V or -50 °C {-58 °F}.
POSSIBLE CAUSE | • Connector or terminal malfunction • IAT sensor malfunction • Short to power supply between MAF/IAT sensor terminal F and PCM terminal 1P • Open circuit between MAF/IAT sensor terminal F and PCM terminal 1P • Open circuit between MAF/IAT sensor terminal E and PCM terminal 1AT

Diagnostic procedure

STEP | INSPECTION | ACTION
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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 CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect MAF/IAT sensor connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Are there any malfunction? | Yes | Repair or replace suspected part, then go to Step 9.
No | Go to the next step.
4 | CLASSIFY IAT SENSOR MALFUNCTION OR HARNESS MALFUNCTION • MAF/IAT sensor connector is disconnected. • Turn the ignition switch to the ON position (Engine off). • Measure voltage between MAF/IAT sensor terminal F (wiring harness-side) and body ground. • Is voltage 4.5—5.5 V? | Yes | Inspect the IAT sensor. (See INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION [MZI-3.7].) Replace if necessary, then go to Step 9.
No | Go to the next step.
5 | INSPECT IAT SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • MAF/IAT sensor connector is disconnected. • Turn the ignition switch to the ON position (Engine off). • Measure voltage between MAF/IAT sensor terminal F (wiring harness-side) and body ground. • Is voltage B+? | Yes | Repair or replace suspected part, then go to Step 9.
No | Go to the next step.
6 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect PCM connector. • Inspect for poor connection (such as damaged/ pulled-out pins, corrosion). • Are there any malfunction? | Yes | Repair or replace suspected part, then go to Step 9.
No | Go to the next step.
7 | INSPECT IAT SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT • MAF/IAT sensor and PCM connectors are disconnected. • Inspect continuity between MAF/IAT sensor terminal F (wiring harness-side) and PCM terminal 1P (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 9.
8 | INSPECT IAT SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT • MAF/IAT sensor and PCM connectors are disconnected. • Inspect continuity between MAF/IAT sensor terminal E (wiring harness-side) and PCM terminal 1AT (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to the next step.
9 | VERIFY TROUBLESHOOTING OF DTC P0113:00 HAS BEEN COMPLETED • Verify that all disconnected connectors reconnected. • Turn the ignition switch to the ON position (Engine off). • Clear the DTC from the PCM memory using the M-MDS. • Start engine and warm it up completely. • Is same DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) Go to the next step.
No | Go to the next step.
10 | VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZI-3.7].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZI-3.7].)
No | Troubleshooting completed.