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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE> 13B-633 STEP 3. Measure the power supply voltage at throttle harness side. (2) Measure the voltage between terminal No. 4 and ground. • Voltage should be battery positive voltage. Q: Is battery positive voltage (approximately 12 volts) present? (fuse No. 8) and throttle actuator control motor relay STEP 4. Measure the power supply voltage at throttle harness side. (2) Turn the ignition switch to the "ON" position. • Voltage should be battery positive voltage. (4) Turn the ignition switch to the "LOCK" (OFF) position. present? between relay box (fuse No. 22) and throttle actuator AK700258 2 1 3 AB A-21X harness AK700259 2 1 3 AB A-21X harness |