Standard throttle valve opening percentage or more

If operation is not as specified, check that the accelerator pedal position sensor (See DTC P2120: THROTTLE/PEDAL POSITION SENSOR/SWITCH ), wiring and ECM.

2004 ENGINE SFI System - Sequoia

Toyota Sequoia 2004 Sensor Location
Fig. 60: Connecting Hand-Held Tester To DLC3 Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If you have no TOYOTA hand-held tester, measure voltage between terminals VTA and E2 of the ECM connector (See DTC P0120: THROTTLE/PEDAL POSITION SENSOR/SWITCH ).

c. Inspect the idle speed.

1. Start the engine and check that the MIL does no light up.

2. Allow the engine to warm up to normal operating temperature.

2004 ENGINE SFI System - Sequoia

Fig. 61: Identifying ECM Terminals

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 61: Identifying ECM Terminals

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. Turn the A/C compressor ON to OFF, and check the idle speed.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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