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ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (FS)] 01–02B–40 End Of Sie DTC P0117 [FS] A3U010201084W14 Diagnostic procedure DTC P0117 ECT circuit low input DETECTION CONDITION • PCM monitors ECT sensor signal at PCM terminal 38. If voltage at terminal 38 is below 0.20 V, PCM Diagnostic support note • This is a continuous monitor (CCM). • MIL illuminates if PCM detects the above malfunction condition during first drive cycle. Therefore, • FREEZE FRAME DATA is available. • DTC is stored in PCM memory. POSSIBLE CAUSE • ECT sensor malfunction • Short to ground circuit between ECT sensor terminal A and PCM connector terminal 38 • ECT signal and ground circuits are shorted each other. • PCM malfunction STEP INSPECTION ACTION 1 VERIFY FREEZE FRAME DATA HAS BEEN • Has FREEZE FRAME DATA been recorded? Yes Go to next step. No Record FREEZE FRAME DATA on repair order, then go to 2 VERIFY RELATED REPAIR INFORMATION • Check for related Service Bulletins availability. • Is any related repair information available? Yes Perform repair or diagnosis according to available repair information. • If vehicle is not repaired, go to next step. No Go to next step. 3 INSPECT ECT SENSOR TERMINAL BENT • Turn ignition key to OFF. • Disconnect ECT sensor connector. • Check for bent of ECT sensor terminals A and • Is there malfunction? Yes Repair or replace terminal, then go to Step 7. No Go to next step. 4 CLASSIFY ECT SENSOR MALFUNCTION OR • Measure resistance between ECT sensor • Is resistance within 0.111—25.403 kilohms? Yes Go to next step. No Replace ECT sensor, then go to Step 7. 1712-1U-01G(01-02B).fm 40 ページ 2001年6月29日 金曜日 午後3時24分 |