Toyota Sienna Service Manual: How to proceed with troubleshooting
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
3 CHECK INITIAL CHECK FUNCTION
4 PROBLEM SYMPTOMS TABLE
THE CORRESPONDING SYSTEM DOES NOT EXIST (Go to step 5)
5 BASED ON THE MALFUNCTION SYMPTOM, PERFORM THE TROUBLESHOOTING BELOW
- Operation check (C).
- Terminals of ECU
6 ADJUST, REPAIR OR REPLACE
7 CONFIRMATION TEST
END
System description
1. GENERAL
This system uses ultrasonic sensors to detect any
obstacles at the corners and the rear of the vehicle.
The system then informs the driver of the distance
between the sens ...
Operation check
1. DETECTION RANGE MEASUREMENT AND INDICATOR CHECK
Turn the IG switch ON.
Move the shift lever to the R position (when the back
sonar and rear clearance sonar is checked).
...
Other materials:
Adjustment
HINT:
On the RH side, use the same procedures as on the LH
side.
Since a centering bolt is used as door hinge mounting
bolts on the body side and the door side, the door cannot
be adjusted with them on. Substitute a bolt with a washer
for the centering bolt.
1. INSPECT BACK DOOR PAN ...
Data list / active test
1. DATA LIST
HINT:
Using the DATA LIST displayed on the intelligent tester,
you can read the value of the switch, sensor, actuator,
etc. without parts removal. Reading the DATA LIST as
the first step of troubleshooting is one way to shorten the
labor time.
Connect the intelligent tester to ...
On-vehicle inspection
1. INSPECT CURTAIN SHIELD AIRBAG ASSEMBLY
(VEHICLE NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the curtain shield airbag assembly installed on
the vehicle, perform a visual check. If there are any
defects as mentioned below, replace the front pillar
...
