Toyota Sienna Service Manual: Inspection

1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY OPERATION

(a) Apply the parking brake and turn the ignition switch to the ON position.

(b) Depress the brake pedal and check that the engine starts only when the shift lever is in the N or P position and the engine does not start when the shift lever is in other positions.

(c) Check that the back up light comes on and the reverse warning buzzer sounds only when the shift lever is in the R position and the light and buzzer do not operate when the shift lever is in other positions.

(d) If a failure is found, check the park/neutral position switch for continuity.

2. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Jack up the vehicle.

(b) Disconnect the park/neutral position switch connector.

(c) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Resistance

ADJUSTMENT

1. ADJUST PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Loosen the 2 bolts of the park/neutral position switch and move the shift lever to the N position.

(b) Align the groove with the neutral basic line.

(c) Hold the switch in position and tighten the 2 bolts.

Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) (d) After adjustment, perform the inspection described in park/neutral position switch assembly operation.