DESCRIPTION
If any of the following is detected, the ABS warning light remains on.
HINT:
It may not be possible to use the Techstream when the skid control ECU (master cylinder solenoid) is abnormal.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK THAT SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED |
(a) Check the skid control ECU (master cylinder solenoid) connector connection.
OK:
The connector is securely connected.
NG | ![]() |
CONNECT CONNECTOR TO ECU CORRECTLY |
|
2. |
CHECK DTC |
(a) Check for DTCs (See page
).
Result |
Proceed to |
---|---|
DTC is not output |
A |
DTC is output |
B |
B | ![]() |
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS |
|
3. |
INSPECT BATTERY |
(a) Inspect the battery voltage (See page ).
Standard voltage:
11 to 14 V
NG | ![]() |
CHECK CHARGING SYSTEM |
|
4. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Select CAN Bus Check from the System Selection Menu screen and follow the
prompts on the screen to inspect the CAN bus (See page
).
OK:
CAN Bus Check indicates no malfunctions in CAN communication.
NG | ![]() |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
5. |
CHECK HARNESS AND CONNECTOR (IG1 TERMINAL) |
(a) Disconnect the skid control ECU (master cylinder solenoid) connector.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
CHECK HARNESS AND CONNECTOR (GND TERMINAL) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(b) Reconnect the skid control ECU (master cylinder solenoid) connector.
Result
Result |
Proceed to |
---|---|
OK (w/ Rear Differential Lock) |
A |
OK (w/o Rear Differential Lock) |
B |
NG |
C |
|
C | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
7. |
CHECK DIFFERENTIAL SYSTEM |
(a) Reconnect the S1 skid control ECU (master cylinder solenoid) connector.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Four Wheel Drive / Trouble Codes.
(f) Check for DTCs.
Result
Result |
Proceed to |
---|---|
DTCs are not output |
A |
DTCs are output |
B |
B | ![]() |
GO TO DIFFERENTIAL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) |
|
8. |
READ VALUE USING TECHSTREAM (ABS WARNING LIGHT) |
(a) Reconnect the S1 skid control ECU (master cylinder solenoid) connector.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
(f) According to the display on the Techstream, read the Data List.
ABS/VSC/TRAC
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
ABS Warning Light |
ABS warning light/ ON or OFF |
OFF |
- |
(g) Check the Techstream display condition of the ABS warning light.
Result
Result |
Proceed to |
---|---|
Display of the Data List remains OFF |
A |
Display of the Data List remains ON |
B |
A | ![]() |
GO TO METER / GAUGE SYSTEM |
B | ![]() |
REPLACE MASTER CYLINDER SOLENOID |
Maintenance requirements
To ensure safe and economical driving, day-to-day care and regular maintenance
is essential. It is the owner’s responsibility to perform regular checks. Toyota
recommends the following maintenance.
■ General maintenance
Should be performed on a daily basis. This can be done by yourself ...
Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
Click here
FUNCTION OF WARNING INDICATOR AND MESSAGE
(a) If the pre-collision system is not functioning properly, the driver is warned
by the PCS warning light and a warning message displayed on the multi-information
display.
Mas ...
Parking Brake Switch Circuit
DESCRIPTION
This circuit is from the parking brake switch assembly to the navigation receiver
assembly.
WIRING DIAGRAM
PROCEDURE
1.
CHECK VEHICLE SIGNAL (OPERATION CHECK)
(a) Display the "Vehicle Signal Check Mode" screen (See page
). ...