Toyota Sienna Service Manual: Terminals of ECU
1. CHECK DRIVER SIDE J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
- Disconnect the B6, 1C, 1K and 1L J/B connectors.
- Measure the voltage and resistance according to the value(s) in the table below.
HINT: If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the 1C, 1K, 1L and B6 connectors.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
Operation check
1. REMOVE CHECK FUNCTION
Check that the key reminder warning buzzer
sounds.
With the driver side door closed, insert the key
into the ignition key cylinder and then turn the
...
Diagnosis system
1. CHECK DLC3
The vehicle's ECU uses ISO 15765-4 for
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
NOT ...
Other materials:
Parking Brake Switch Circuit
DESCRIPTION
The Multiplex network body ECU receives parking brake switch signal.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the intelligent
tester main switch ON.
Se ...
Anti-glare function
Manual anti-glare inside rear view mirror
Reflected light from the headlights of vehicles behind can be reduced
by operating the lever.
Normal position
Anti-glare position
Auto anti-glare inside rear view mirror
Responding to the level of brightness of the headlights of veh ...
Stuck in Deceleration Sensor
DESCRIPTION
The yaw rate sensor and deceleration sensor signal is sent to the skid
control ECU through the CAN
communication system. When there is a malfunction in the communication, it will
be detected by the
diagnosis function.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
When ...
