Toyota Tacoma (2015-2018) Service Manual: A-TRAC Indicator Light does not Come ON
DESCRIPTION
The A-TRAC does not operate even if the A-TRAC switch is pressed under the following conditions:
- The TRAC or VSC system is faulty.
- The temperature inside the hydraulic brake booster increases and the A-TRAC operation is suspended.
WIRING DIAGRAM
Refer to A-TRAC Indicator Light Remains ON (See page
.gif)
).
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the skid control ECU (master cylinder solenoid), perform
calibration (See page
).
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
| NG | .gif) |
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (ATRC TERMINAL) |
| NG | |
GO TO STEP 4 |
|
|
3. |
READ VALUE USING TECHSTREAM (A-TRC(TRAC) SWITCH) |
| OK | |
GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
| NG | |
REPLACE MASTER CYLINDER SOLENOID |
|
4. |
INSPECT A-TRAC SWITCH |
| NG | |
REPLACE A-TRAC SWITCH |
|
|
5. |
INSPECT ROOF CONSOLE BOX ASSEMBLY |
| A | |
REPAIR OR REPLACE HARNESS OR CONNECTOR (MASTER CYLINDER SOLENOID - ROOF CONSOLE BOX ASSEMBLY) |
| B | |
REPLACE ROOF CONSOLE BOX ASSEMBLY |
| C | |
REPLACE ROOF CONSOLE BOX ASSEMBLY |
Slip Indicator Light does not Come ON
DESCRIPTION
Refer to Slip Indicator Light Remains ON (See page
).
WIRING DIAGRAM
Refer to Slip Indicator Light Remains ON (See page
).
CAUTION / NOTICE / HINT
NOTICE:
When replacing ...
A-TRAC Indicator Light Remains ON
DESCRIPTION
This is the A-TRAC main switch circuit. When the A-TRAC switch is turned on with
the transfer in L4, the A-TRAC function is available and the A-TRAC indicator light
illuminates.
WIRI ...
Other materials:
Clutch Accumulator
Components
COMPONENTS
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL CLUTCH ACCUMULATOR ASSEMBLY
(a) Install the clutch accumulator assembly to the manual transmission assembly
with the 3 bolts.
Torque:
12 N·m {120 kgf·cm, 9 ft·lbf}
(b) Using a union nut wrench, co ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT OCCUPANT DETECTION ECU (for Vehicle not Involved in Collision)
(a) Perform a diagnostic system check (See page
).
2. INSPECT OCCUPANT DETECTION ECU (for Vehicle Involved in Collision)
(a) Perform a diagnostic system check (See page
).
(b) Even if ...
If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle’s
battery is discharged.
You can call your Toyota dealer or qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt
battery, you can jump start your Toyota following the ...
