Toyota Sienna Service Manual: On-vehicle inspection
1. INSPECT OCCUPANT CLASSIFICATION ECU (VEHICLE NOT INVOLVED IN COLLISION)
- Perform a diagnostic system check.
2. INSPECT OCCUPANT CLASSIFICATION ECU (VEHICLE INVOLVED IN COLLISION)
- Perform a diagnostic system check.
- Even if the airbag was not deployed, check if there is any damage to the occupant classification ECU. If there are any defects as mentioned below, replace the occupant classification ECU with a new one:
- Cracks, dents or chips on the case.
- Cracks or other damage to the connector.
CAUTION: Be sure to follow the correct removal and installation procedures.
Occupant classification ecu
COMPONENTS
...
Removal
1. PRECAUTION
CAUTION:
Be sure to read "PRECAUTION" thoroughly before
servicing.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait for 90 seconds after disconnecting th ...
Other materials:
High Temperature
DTC 44-47 High Temperature
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
44-47
Sensor detects that DVD unit temperature is high.
(Over 80C)
Television display assembly
INSPECTION PROCEDURE
HINT:
After the inspection is completed, ...
How to proceed with troubleshooting
The intelligent tester can be used at steps 3, 7, 10, and 13.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
(a) Interview the customer to confirm the trouble.
3 DTC CHECK/CLEAR AND FREEZE FRAME DATA
4 PROBLEM SYMPTOM CONFIRMATION
5 PROBLEM SYMPTOM SIMULATION
6 SYMPTOM SI ...
Shift Solenoid "E" Control Circuit
DESCRIPTION
Shifting from 1st to 5th is performed in combination with "ON" and "OFF"
operation of the shift solenoid
valves SL1, SL2, SL3, S4 and SR which are controlled by the ECM. If an open or
short circuit occurs in
either of the shift solenoid valves, the ECM cont ...
