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.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
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) |
|
2. |
CHECK HARNESS AND CONNECTOR (ATRC TERMINAL) |
(a) Disconnect the S1 skid control ECU (master cylinder solenoid) connector.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(c) Reconnect the S1 skid control ECU (master cylinder solenoid) connector.
NG |
GO TO STEP 4 |
|
3. |
READ VALUE USING TECHSTREAM (A-TRC(TRAC) SWITCH) |
(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) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.
ABS/VSC/TRAC
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
A-TRC(TRAC) Switch |
A-TRC Switch/ ON or OFF |
ON: A-TRC switch on OFF: A-TRC switch off |
- |
(f) Check that the mode display changes according to A-TRAC OFF switch operation.
OK:
Display changes according to switch operation.
A |
GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
B |
REPLACE MASTER CYLINDER SOLENOID |
4. |
INSPECT A-TRAC SWITCH |
(a) Remove the A-TRAC switch (See page ).
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG |
REPLACE A-TRAC SWITCH |
|
5. |
INSPECT ROOF CONSOLE BOX ASSEMBLY |
(a) Remove the roof console box assembly.
*a |
Component without harness connected (Roof Console Box Assembly) |
- |
- |
(b) Measure the resistance according the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
R44-7 (ATRC) - 8 |
Always |
Below 1 Ω |
R44-12 (GND) - 5 |
Always |
Below 1 Ω |
Result |
Proceed to |
---|---|
OK |
A |
NG (for Double Cab) |
B |
NG (for Access Cab) |
C |
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 |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT PARK/NEUTRAL POSITION SWITCH
(a) Apply the parking brake.
(b) Turn the ignition switch to ON.
(c) Depress the brake pedal and move the shift lever to any position other than
P.
(d) Depress the brake pedal and check that the engine starts when the sh ...
Using the radio
Select “AM” or “FM” on the “Select Audio Source” screen to begin listening
to the radio.
Audio control screen
“Select Audio Source” screen
appears
Preset stations
Select to display RBDS text
message
Scanning for receivable station
Sele ...
Manual Shifting Test
MANUAL SHIFTING TEST
1. PERFORM MANUAL SHIFTING TEST
HINT:
Using this test, it can be determined whether a problem is in an electrical
circuit or if it is a mechanical problem in the transmission.
If any abnormalities are found in the following test, the problem is
in the tran ...