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DTC P0117 [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513)

BME010200100210

DTC P0117 | ECT circuit low input
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DETECTION CONDITION | • The PCM monitors ECT sensor signal at PCM terminal 38. If the PCM detected ECT sensor voltage below 0.14 V the PCM determines that the ECT 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 not available.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
POSSIBLE CAUSE | • ECT sensor malfunction • Short to ground circuit between ECT sensor terminal A and PCM connector terminal 38. • Short each harness ECT signal circuit and ECT ground circuit. • 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 ECT PID. • Is ECT PID below 0.14 V? | Yes | Go to the next step.
No | Intermittent concern exists. Go to INTERMITTENT CONCERNS TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [AJ].)
4 | INSPECT TERMINAL BENT • Turn the ignition switch off. • Disconnect ECT sensor connector. • Inspect for bent of ECT sensor terminals A and B (part-side). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 8.
No | Go to the next step.
5 | CLASSIFY ECT SENSOR MALFUNCTION OR HARNESS MALFUNCTION • Disconnect the ECT sensor connector. • Turn the ignition switch to the ON position (Engine off). • Access ECT PID. • Is ECT PID below 0.14 V? | Yes | Go to the next step.
No | Replace the ECT sensor, then go to Step 8.
6 | INSPECT ECT SIGNAL CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for continuity between ECT sensor terminal A (wiring harness-side) and body ground. • Is there continuity? | Yes | Repair or replace the wiring harness for short to ground, then go to Step 8.
No | Go to the next step.
7 | INSPECT IAT CIRCUIT FOR SHORT HARNESSES • Inspect for continuity between ECT sensor terminal A and B (wiring harness-side). • Is there continuity? | Yes | Repair or replace the wiring harness for short circuit, then go to the next step.
No | Go to the next step.
8 | VERIFY TROUBLESHOOTING OF DTC P0117 COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the WDS or equivalent. • Turn the ignition switch to the ON position (Engine off). • Is the same DTC present? | Yes | Replace the PCM, then go to the next step.
No | Go to the next step.
9 | 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.