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ECK-280 < DTC/CIRCUIT DIAGNOSIS > [K9K] P0651 SENSOR POWER SUPPLY P0651 SENSOR POWER SUPPLY DTC Logic INFOID:0000000010289890 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON and wait at least 1 second. 2. Check DTC. Is DTC detected? YES >> Proceed to ECK-280, "Diagnosis Procedure" NO >> INSPECTION END Diagnosis Procedure INFOID:0000000010289891 1. CHECK SENSOR POWER SUPPLY 1. Turn ignition switch ON. 2. Check the voltage between ECM harness connector and ground. Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-41, "Intermittent Incident" . NO >> GO TO 2. 2. CHECK SENSOR POWER SUPPLY CIRCUITS 1. Turn ignition switch OFF. 2. Check harness for short to power and short to ground, between the following terminals. DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P0651 SEN SUPPLY N2 VOL LOW • 2.DEF: VOLTAGE TOO HIGH • A voltage of sensor power supply is 5.4 V or more. • A voltage of sensor power supply is 4.6 V or less. • Harness or connectors (The sensor power supply 2 circuit is • Exhaust electric throttle position sen- sor • Exhaust gas pressure sensor + − Voltage (Approx.) ECM Connectors Terminal E59 23 Ground 5.0 V F80 53 57 77 F81 97 |