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DTC P0113 [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513)

BME010200100209

DTC P0113 | IAT circuit high input
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DETECTION CONDITION | • The PCM monitors IAT sensor signal at PCM terminal 39. If the PCM detected IAT sensor voltage above 4.8 V, the PCM determines that the IAT sensor circuit has malfunction. Diagnostic support note • This is a continuous monitor. • MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
• PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
POSSIBLE CAUSE | • IAT sensor malfunction • Open circuit between MAF/IAT sensor terminal F and PCM terminal 39 • Short to power circuit between MAF/IAT sensor terminal F and PCM terminal 39 • Open circuit between MAF/IAT sensor terminal A and PCM terminal 91 • Poor connection at MAF/IAT sensor or PCM connector.
• PCM malfunction

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 repair order, then go to the next step.
2 | VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Check for related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to available Service Information. • If vehicle is not repaired, go to the next step.
No | Go to the next step.
3 | VERIFY CURRENT INPUT SIGNAL STATUS- IS CONCERN INTERMITTENT OR CONSTANT • Connect the WDS or equivalent to the DLC-2. • Turn the ignition switch to the ON position (Engine off). • Access IAT PID. • Is IAT PID above 4.8 V? | Yes | Go to the next step.
No | Intermittent concern exists. Go to INTERMITTENT CONCERNS TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [AJ].)
4 | INSPECT MAF SENSOR CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the MAF/IAT sensor connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 11.
No | Go to the next step.
5 | INSPECT IAT SENSOR • Inspect the IAT sensor. (See IAT Sensor Resistance Inspection.) • Is the IAT sensor normal? | Yes | Replace the MAF/IAT sensor, then go to Step 11.
No | Go to the next step.
6 | INSPECT IAT SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between MAF/IAT sensor terminal F (wiring harness-side) and body ground. • Is the voltage B+? | Yes | Repair or replace the wiring harness for short to power supply, then go to Step 11.
No | Go to the next step.
7 | INSPECT IAT SENSOR GROUND CIRCUIT FOR SHORT TO POWER • Measure the voltage between MAF/IAT sensor terminal A (wiring harness-side) and body ground. • Is the voltage B+? | Yes | Repair or replace the wiring harness for short to power supply, then go to Step 11.
No | Go to the next step.
8 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect PCM terminal 39 and 91 (wiring harness-side) for tightness using feeler tool. • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 11.
No | Go to the next step.
9 | INSPECT IAT SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT • Disconnect PCM connector. • Inspect for continuity between MAF/IAT sensor terminal F (wiring harness-side) and PCM terminal 39. • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness for open circuit, then go to Step 11.
10 | INSPECT IAT SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between MAF/IAT sensor terminal A (wiring harness-side) and PCM terminal 91. • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness for open, then go to the next step.
11 | VERIFY TROUBLESHOOTING OF DTC P0113 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the WDS or equivalent. • Start the engine. • Is the same DTC present? | Yes | Replace the PCM, then go to the next step.
No | Go to the next step.
12 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [AJ].) • Is there any DTC present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513).)
No | Troubleshooting completed.