DESCRIPTION
The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication.
The slip indicator light blinks during VSC and/or TRAC operation.
If a malfunction is detected, the slip indicator light comes on to warn the driver
(See page
).
w/ Rear Differential Lock:
When the rear differential cannot be unlocked for 2 consecutive trips, the slip indicator light illuminates.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
As there may be malfunctions in the differential system related to when
the system operates with the rear differential locked, check the differential
system first (See page ).
PROCEDURE
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check if CAN communication system DTCs are output (See page
).
Result |
Proceed to |
---|---|
DTC is not output |
A |
DTC is output |
B |
B | ![]() |
CHECK CAN COMMUNICATION SYSTEM |
|
2. |
CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED |
(a) Check if the skid control ECU (brake actuator assembly) connector is securely connected.
OK:
The connector is securely connected.
NG | ![]() |
CONNECT CONNECTOR TO ECU CORRECTLY |
|
3. |
INSPECT BATTERY |
(a) Check the battery voltage.
Standard voltage:
11 to 14 V
NG | ![]() |
CHECK OR REPLACE CHARGING SYSTEM OR BATTERY |
|
4. |
CHECK TERMINAL VOLTAGE (IG1 TERMINAL) |
(a) Disconnect the S1 skid control ECU (brake actuator assembly) connector. |
|
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
S1-12 (IG1) - Body ground |
Ignition switch ON |
11 to 14 V |
*A |
Front view of wire harness connector (to Skid Control ECU [Brake Actuator Assembly]) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT) |
|
5. |
CHECK HARNESS AND CONNECTOR (GND1 TERMINAL) |
(a) Turn the ignition switch off.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND1 CIRCUIT) |
|
6. |
READ VALUE USING TECHSTREAM (SLIP INDICATOR LIGHT) |
(a) Reconnect the S1 skid control ECU (brake actuator assembly) 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 |
---|---|---|---|---|
Slip Indicator Light |
SLIP indicator light |
OFF or ON |
OFF: Indicator light off ON: Indicator light on |
- |
(g) Check the Techstream display condition of the slip indicator light.
Result
Result |
Proceed to |
---|---|
Display of the Data List remains OFF |
A |
Display of the Data List remains ON |
B |
A | ![]() |
INSPECT METER / GAUGE SYSTEM |
B | ![]() |
REPLACE BRAKE ACTUATOR ASSEMBLY |
Cursor or Map Rotates when Vehicle Stopped
PROCEDURE
1.
CHECK CONDITION
(a) Check with the customer if the vehicle has been turned by a turntable.
OK:
Vehicle has not been turned by a turntable.
HINT:
If the vehicle is turned on a turntable with the ignition switch ON,
the system ...
Transmission Control Switch Circuit
DESCRIPTION
After moving the shift lever to S, it is possible to switch the shift range between
"1" (S1 range) and "6" (S6 range) using the transmission control switch.
Moving the shift lever to "+" once raises the shift range by one, and moving
the shift lever to ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CUSTOMER PROBLEM ANALYSIS CHECK
HINT:
In troubleshooti ...