Toyota Sienna Service Manual: Terminals of ECU
1. INSTRUMENT PANEL JUNCTION BLOCK (MULTIPLEX NETWORK BODY ECU)
- Disconnect the B6, B7 and B9 ECU connectors.
- Disconnect the 1A, 1C, 1K, 1L and 1P J/B connectors.
- Check the voltage or resistance according to the value(s) in the table below (wire harness side connector).
HINT: If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the B6, B7 and B9 ECU connectors.
- Reconnect the 1A, 1C, 1K, 1L and 1P J/B connectors.
- Check the voltage according to the value(s) in the table below (ECU side connector).
If the result is not as specified, the instrument panel J/B (multiplex network body ECU) may have a malfunction.
Problem symptoms table
HINT:
Inspect the fuse and relay before investigating the suspected
areas shown in the table below.
WIRELESS DOOR LOCK CONTROL SYSTEM:
...
Diagnosis system
1. DESCRIPTION
When troubleshooting a vehicle with the diagnosis
system, the only difference from the usual
troubleshooting procedure is connecting the intelligent
tester to the vehicle and readin ...
Other materials:
Inspection
1. INSPECT VENTILATION VALVE
(a) Install a clean hose to the ventilation valve.
(b) Check the ventilation valve operation.
(1) Blow air into the cylinder head side, and check
that air passes through easily.
NOTICE:
Do not suck air through the valve.
Petroleum substances i ...
DTC check / clear
1. CHECK DTC
Prepare the intelligent tester.
Connect the intelligent tester to DLC3.
Turn the ignition switch to the ON position and turn
the intelligent tester main switch ON.
Use the intelligent tester to check the DTCs, and
note them down (For operating instructions, see the
int ...
Adjustment
HINT:
If the malfunction does not disappear by following the
procedure in ADJUSTMENT and the rear No. 2 seat
assembly needs to be replaced, do not disassemble the rear
No. 2 seat assembly.
1. ADJUST FRONT LEG
HINT:
Perform the following procedure if the inner leg does not
lock.
P ...
