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8 CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. Refer to Wiring Diagram. Continuity should exist. 3. Also check harness for short to ground and short to power. OK or NG OK (With CONSULT-II) © GO TO 9. OK (Without CONSULT- © GO TO 10. NG © Repair open circuit or short to ground or short to power in harness or connectors. 9 CHECK THROTTLE POSITION SENSOR With CONSULT-II 1. Start engine and warm it up to normal operating temperature. throttle opener. SEF793W 6. Turn ignition switch ON. Voltage measurement must be made with throttle position sensor installed in vehicle. SEF062Y OK or NG OK © GO TO 12. NG © GO TO 11. GI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX DTC P0120 THROTTLE POSITION SENSOR Diagnostic Procedure (Cont’d) EC-183 |