Toyota Sienna Service Manual: 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:
- If the ignition switch is turned from the ON position to the ACC or off during test mode (signal check), DTCs of the signal check function will be erased.
- During test mode (signal check), the skid control ECU records all DTCs of the signal check function. By performing the test mode (signal check), the codes are erased if normality is confirmed. The remaining codes are the codes where an abnormality was found.
(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.
(5) Set the intelligent tester to test mode (select "SIGNAL CHECK").
HINT: Refer to the intelligent tester operator's manual for further details.
(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:
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms
are listed in order of probability in the "Suspect Area"
column of the table. Check each symptom by checking the
suspected areas in the order they are listed ...
Installation
HINT:
Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
1. INSTALL REAR AIRBAG SENSOR LH
Check that the ignition switch is off.
Check that the battery negative (-) terminal is
disconnected.
CAUTION:
...
Short to GND in Side Squib LH Circuit
DTC B0117/45 Short to GND in Side Squib LH Circuit
DESCRIPTION
The side squib LH circuit consists of the center airbag sensor assembly and
the front seat side airbag
assembly LH.
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0117/45 is recorded when a s ...
