Toyota Sienna Service Manual: Problem symptoms table
If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
NOTICE: When replacing the brake actuator assembly, sensor, etc., turn the ignition switch off.
HINT: Inspect the fuse and relay before investigating the suspected areas as shown in the table below. Inspect each malfunction circuit in numerical order for the corresponding symptom.
Anti-lock brake system:
Terminals of ecu
Test mode procedure
1. SPEED SENSOR SIGNAL CHECK (WHEN USING SST CHECK WIRE):
HINT:
If the ignition switch is turned from the ON to the ACC
or LOCK position during Test Mode, the DTCs of the
signal check functio ...
Diagnosis system
1. DESCRIPTION
(a) Release the parking brake pedal.
(b) Check the warning lights.
When ignition switch is turned ON, check that the
ABS warning light and brake warning light come on
for 3 ...
Other materials:
Occupant Classification ECU Malfunction
DTC B1795 Occupant Classification ECU Malfunction
DESCRIPTION
DTC B1795 is recorded when a malfunction is detected in the occupant
classification ECU.
Troubleshoot DTC B1771 first when the DTCs B1771 and B1795 are output
simultaneously.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK DTC ...
Power Slide Door Warning Buzzer RH does not Sound
DESCRIPTION
The power slide door system uses warning buzzers built into RH
slide doors respectively. Each buzzer
has 2 ways of sounding that are used differently according to the
situations:
When all the following conditions are met, the warning buzzer sounds at
a cycle of ...
On-vehicle inspection
1. CHECK AUTO SLIDE-OPEN / CLOSE FUNCTION
Check that the sliding roof switch can operate the
sliding roof glass as follows while the tilt-up / DOWN
function is not operating.
Standard
HINT:
The sliding roof stops partway when the sliding roof
switch is pushed on either side during AU ...
