Toyota Sienna Service Manual: DTC check / clear
1. DTC CHECK
HINT: When DTC B1150/23 is detected as a result of troubleshooting for "Airbag System", perform troubleshooting for the Occupant Classification System.
- Check the DTCs.
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Check the DTCs by following the prompts on the tester screen.
HINT: Refer to the intelligent tester operator's manual for further details.
- Clear the DTCs.
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Clear the DTCs by following the prompts on the tester screen.
HINT: Refer to the intelligent tester operator's manual for further details.
Diagnosis system
1. CHECK DLC3
The ECU uses ISO 15765-4 for communication.
The terminal arrangement of the DLC3 complies
with SAE J1962 and meets the ISO 15765-4 format.
NOTICE:
*: Before measuri ...
Data list / active test
HINT:
By accessing the DATA LIST displayed by the intelligent
tester, you can perform such functions as reading the values
of switches and sensors without removing any parts. Reading
the DATA LIST ...
Other materials:
Removal
1. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
2. REMOVE NO. 1 ENGINE UNDER COVER (See page
EM-26)
3. DRAIN ENGINE COOLANT (See page CO-6)
4. REMOVE NO. 2 AIR CLEANER INLET (See page EM-
28)
5. REMOVE BATTERY (See page EM-26)
6. REMOVE FRONT BUMPER ASSEMBLY (See page
ET-3)
7. REMOVE ...
Terminals of ecu
1. A/C AMPLIFIER
HINT:
Check from the rear of the connector while it is
connected to the A/C amplifier.
(a) Waveform 1:
(b) Waveform 2: ...
Occupant Classification System Malfunction
DTC B1150/23 Occupant Classification System Malfunction
DESCRIPTION
The occupant classification system circuit consists of the center airbag
sensor assembly and the occupant
classification ECU.
If the center airbag sensor assembly receives signals from the occupant
classification ECU, it d ...
