Toyota Sienna Service Manual: ABS Warning Light does not Come ON
WIRING DIAGRAM
See page BC-47.
INSPECTION PROCEDURE
1 INSPECT ABS WARNING LIGHT
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the ON position.
(c) Check that the ABS warning light comes on.
OK: ABS warning light comes on.
HINT: If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step (See page BC-7).
REPLACE BRAKE ACTUATOR ASSEMBLY
2 CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTROL ECU AND COMBINATION METER ASSEMBLY)
(a) Turn the ignition switch off.
(b) Disconnect the combination meter connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance
3 INSPECT COMBINATION METER ASSEMBLY
(a) Check the combination meter (See page ME-4).
HINT: If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step (See page BC-7).
END
ABS Warning Light Remains ON
DESCRIPTION
If any of the following is detected, the ABS warning light remains on.
The skid control ECU connectors are disconnected from the skid control
ECU.
There is a malfunction in the s ...
Brake Warning Light Remains ON
DESCRIPTION
If the ECU detects a trouble, it turns on the brake warning light at the same
time of prohibiting ABS
control.
At this time, the ECU records a DTC in memory.
Connect terminals TC ...
Other materials:
Installation
1. INSTALL OUTSIDE MOULDING
Using a heat light, heat the mounting surface of the
vehicle body between 40 to 60 C (104 to 140 F).
NOTICE:
Do not heat the body excessively.
Remove the tape from the vehicle body.
Wipe off the stains with cleaner.
Clean the outside moulding (if reusing t ...
Check that initialization has been completed
(a) Confirm that the data of tire pressure of all tires are
displayed on the intelligent tester screen.
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
TIREPRESS1
ID1 tire inflation pressure (Absolute
pressure) /
min.: 100 kPa (1 kgf/cm2, 14 ...
Fuel Pump Control Circuit
DESCRIPTION
The FUEL PUMP relay switches the fuel pump speed according to the engine
conditions. The fuel pump
operates when the ECM receives the starter-operating signal (STA) and
crankshaft-rotating signal (NE).
The FUEL PUMP relay is turned ON while the engine is idling or operating at l ...
