Diagnosis Procedure

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK GROUND CONNECTIONS Turn ignition switch OFF. Loosen and retighten three ground screws on the body. Refer to [POWER SUPPLY AND GROUND CIRCUIT CHECK ]. Courtesy of SUZUKI OF AMERICA CORP. OK or NG	GO TO 2.	Repair or replace ground connections.
2	CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT -1 Disconnect electric throttle control actuator harness connector. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 2. Turn ignition switch ON. 3. Check voltage between electric throttle control actuator terminal 2 and ground with SDT or tester. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. Voltage: Approximately 5V OK or NG	GO TO 7.	GO TO 3.
3	CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT - II Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between electric throttle control actuator terminal 2 and ECM terminal 47. Refer to WIRING DIAGRAM . Continuity should exist. OK or NG	GO TO 4.	Repair open circuit.
4	CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT - III Check harness for short to power and short to ground, between the following terminals. Courtesy of SUZUKI OF AMERICA CORP. OK or NG	GO TO 5.	Repair short to ground or short to power in harness or connectors.
5	CHECK APP SENSOR Refer to [P2127, P2128 APP SENSOR ]. OK or NG	GO TO 11.	GO TO 6.
6	REPLACE ACCELERATOR PEDAL ASSEMBLY Replace accelerator pedal assembly. Refer to ACCELERATOR CONTROL SYSTEM: COMPONENT . Perform Accelerator Pedal Released Position Learning . Perform Throttle Valve Closed Position Learning . Perform Idle Air Volume Learning .	INSPECTION END
7	CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT Turn ignition switch OFF. Disconnect ECM harness connector. Check harness continuity between electric throttle control actuator terminal 4 and ECM terminal 66. Refer to WIRING DIAGRAM . Continuity should exist. Also check harness for short to ground and short to power. OK or NG	GO TO 8.	Repair open circuit or short to ground or short to power in harness or connectors.
8	CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Check harness continuity between ECM terminal 50 and electric throttle control actuator terminal 1, ECM terminal 69 and electric throttle control actuator terminal 3. Refer to WIRING DIAGRAM . Continuity should exist. Also check harness for short to ground and short to power. OK or NG	GO TO 9.	Repair open circuit or short to ground or short to power in harness or connectors.
9	CHECK THROTTLE POSITION SENSOR Refer to [Component Inspection ]. OK or NG	GO TO 11.	GO TO 10.
10	REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform Throttle Valve Closed Position Learning . Perform Idle Air Volume Learning .	INSPECTION END
11	CHECK INTERMITTENT INCIDENT Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ]	INSPECTION END