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Toyota Sienna Service Manual: Sensor signal check by test mode (signal check) (when using intelligent tester)

Toyota Sienna Service Manual / Brake control / Vehicle stability control system / Test mode procedure / Sensor signal check by test mode (signal check) (when using intelligent tester)

(a) When having replaced the skid control ECU and/or yaw rate and deceleration sensor, perform zero point calibration of the yaw rate and deceleration sensor.

HINT:

Sensor signal check by test mode (signal check) (when using intelligent tester)

(b) Procedures for test mode.

(1) Turn the ignition switch off.

(2) Connect the intelligent tester to the DLC3.

(3) Check that the steering wheel is in the straight ahead position and move the shift lever to the P position.

(4) Turn the ignition switch to the ON position.

Sensor signal check by test mode (signal check) (when using intelligent tester)

(5) Set the intelligent tester to test mode (select "SIGNAL CHECK").

HINT: Refer to the intelligent tester operator's manual for further details.

Sensor signal check by test mode (signal check) (when using intelligent tester)

(6) Check that the ABS warning light and VSC warning light blink (test mode).

HINT: If the ABS warning light and VSC warning light do not blink, inspect the ABS warning light circuit and/or VSC warning light circuit.

Warning light and indicator light bulb check
(a) Check the warning lights. (1) Release parking brake pedal. (2) When the ignition switch is turned to the ON position, check that the ABS warning light, BRAKE warning light, VSC warning ...

Master cylinder pressure sensor check (when using intelligent tester)
(a) Leave the vehicle in a stationary condition and release the brake pedal for 1 second or more, and quickly depress the brake pedal with a force of 98 N (10 kgf, 22 lbf) or more for 1 second or m ...

Other materials:

Short to GND in Front Passenger Side Squib Circuit
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Disassembly
1. REMOVE REAR SEAT LEG COVER LH  Remove the 2 screws and seat leg cover. 2. REMOVE REAR SEAT LEG COVER RH  Remove the 2 screws and seat leg cover. 3. REMOVE REAR SEAT LEG SIDE COVER LH  Remove the 2 screws and leg side cover. 4. REMOVE LH SEAT REAR SEAT LOCK COVE ...

Terminals of ECU
1. FOLD SEAT CONTROL ECU LH Disconnect the fold seat control ECU connectors. Measure the voltage and resistance of the wire harness side connectors. If the result is not as specified, there may be a malfunction on the wire harness side.  Reconnect the fold seat control E ...

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