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ENGINE SPEED SIGNAL CIRCUIT STC-11 < COMPONENT DIAGNOSIS > C D E F H I J K L M A B STC N O P Also check harness for short to ground and short to power. Is the inspection result normal? YES >> GO TO 4. NO >> Replace ECM. Refer to EC-34, "Component Parts Location" (QR25DE except for California), (VQ35DE). 4. CHECK ENGINE SPEED SIGNAL (POWER STEERING CONTROL UNIT SIDE) 1. Turn the ignition switch OFF. 2. Connect power steering control unit harness connector. 3. Check signal between power steering control unit harness con- nector M59 terminal 10 and ground with oscilloscope. ECM Value (Approx.) Connector Terminal Condition E10 94 - Ground Engine speed: QR25DE: VQ35DE: Engine speed: QR25DE: VQ35DE: JSGIA0144ZZ JSGIA0143ZZ JSGIA0145ZZ PBIA3655J AWGIA0041ZZ |