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DTC P0113 [L3]

BME010200100W08

DTC P0113 | IAT circuit high input
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DETECTION CONDITION | • PCM monitors input voltage from IAT sensor If input voltage at PCM terminal 2E is above 4.9 V, PCM determines that IAT sensor circuit has malfunction. Diagnostic support note • This is a continuous monitor (CCM). • MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
• PENDING CODE is available if PCM detects the above malfunction condition.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
POSSIBLE CAUSE | • IAT sensor malfunction • Open circuit between MAF/IAT sensor terminal D and PCM terminal 2E • Short to power circuit between MAF/IAT sensor terminal D and PCM terminal 2E • Open circuit between MAF/IAT sensor terminal E and PCM terminal 2H • Poor connection at MAF/IAT sensor or PCM connector
• PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | PERFORM DTC CONFIRMATION PROCEDURE • Perform DTC CONFIRMATION PROCEDURE. (See DTC CONFIRMATION PROCEDURE [L3].) • Is same DTC present? | Yes | Go to next step.
No | Intermittent concern exists. Go to INTERMITTENT CONCERN TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [L3].)
2 | INSPECT POOR CONNECTION OF IAT SENSOR CONNECTOR • Turn ignition key to OFF. • Disconnect MAF/IAT sensor connector. • Inspect for poor connection (damaged, pulled-out pins, corrosion, etc.). • Is there any malfunction? | Yes | Repair or replace terminal, then go to Step 8.
No | Go to next step.
3 | CLASSIFY IAT SENSOR MALFUNCTION OR HARNESS MALFUNCTION • Connect WDS or equivalent to DLC-2. • Access IAT PID. • Connect a jumper wire between MAF/IAT sensor terminals D and E. • Verify IAT value
• Is voltage below 4.9 V?
Yes
Replace MAF/IAT sensor, then go to Step 8.
No | Go to next step.
4 | INSPECT IAT SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER • Turn ignition key to ON (Engine OFF). • Measure voltage between MAF/IAT sensor terminal D (harness-side) and body ground. • Is voltage B+? | Yes | Repair or replace harness for short to power, then go to Step 8.
No | Go to next step.
5 | INSPECT POOR CONNECTION OF PCM CONNECTOR • Turn ignition key to OFF. • Disconnect PCM connector. • Inspect PCM terminals 2E and 2H (harness-side) for tightness using feeler tool. • Is there any malfunction? | Yes | Repair or replace terminal, then go to Step 9.
No | Go to next step.
6 | INSPECT IAT SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT • Inspect continuity between MAF/IAT sensor terminal D (harness-side) and PCM terminal 2E. • Is there continuity? | Yes | Go to next step.
No | Repair or replace harness for open, then go to Step 9.
7 | INSPECT IAT SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT • Inspect continuity between MAF/IAT sensor terminal E (harness-side) and PCM terminal 2H. • Is there continuity? | Yes | Go to next step.
No | Repair or replace harness for open, then go to next step.
8 | VERIFY TROUBLESHOOTING OF DTC P0113 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear DTC from PCM memory using WDS or equivalent. • Perform KOEO/KOER self-test. (See KOEO/KOER SELF-TEST PROCEDURE [L3].)
• Is same DTC present?
Yes
Replace PCM, then go to next step.
(See PCM REMOVAL/INSTALLATION [L3].)
No | Go to next step.
9 | VERIFY AFTER REPAIR PROCEDURE • Perform "After Repair Procedure". (See AFTER REPAIR PROCEDURE [L3].) • Is there any DTC present? | Yes | Go to applicable DTC troubleshooting. (See DTC TABLE [L3].)
No | Troubleshooting completed.