Dtc P0120 (Dtc No.21, 22) Throttle Position Circuit Malfunction - Suzuki GRAND VITARA XL-7 Owner's Manual

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6-1-54 ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE)

DTC P0120 (DTC No.21, 22) Throttle Position Circuit Malfunction

WIRING DIAGRAM

1. Throttle position sensor

2. ECM (PCM)

DTC DETECTING CONDITION AND TROUBLE AREA

DTC DETECTING CONDITION

Following conditions are detected for 5 sec. continuously.

• Engine running

• Signal voltage low or signal voltage high

Check to make sure that following conditions are satisfied when using this "DTC CONFIRMATION

• Intake air temp. : – 8°C (18°F) or higher

• Engine coolant temp. : – 8 – 110°C (18 – 230°F)

• Altitude barometric pressure : 2400 m, 8000 ft or less (560 mmHg (75 kPa) or more)

DTC CONFIRMATION PROCEDURE

1) Connect scan tool to DLC with ignition switch OFF.

2) Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and run

engine at idle speed for 10 sec. or more.

3) Check DTC by using scan tool.

TROUBLE AREA

• TP sensor circuit

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