Toyota Tacoma (2015-2018) Service Manual: Transfer L4 Position Switch Circuit (C1268)
DESCRIPTION
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1268 |
Transfer L4 Position Switch Circuit |
Either of the following is detected:
|
|
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the skid control ECU (brake actuator assembly), perform zero point
calibration and store system information (See page
.gif)
).
PROCEDURE
|
1. |
INSPECT L4 DETECTION SWITCH (TRANSFER SHIFT ACTUATOR ASSEMBLY) |
(a) Inspect the transfer shift actuator assembly (See page
).
OK:
The transfer shift actuator assembly is normal.
| NG | .gif) |
REPLACE TRANSFER SHIFT ACTUATOR ASSEMBLY |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - L4 DETECTION SWITCH) |
(a) Disconnect the S1 skid control ECU (brake actuator assembly) connector.
(b) Disconnect the T4 L4 detection switch (Transfer shift actuator assembly) connector.
(c) Measure the resistance according to the value(s) in the table below
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
S1-5 (EXI4) - T4-9 |
Always |
Below 1 Ω |
|
S1-5 (EXI4) - Body ground |
Always |
10 kΩ or higher |
|
T4-10 - Body ground |
Always |
Below 1 Ω |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR (L4 DETECTION SWITCH CIRCUIT) |
|
|
3. |
CHECK HARNESS AND CONNECTOR (HDCS TERMINAL) |
|
(a) Disconnect the skid control ECU (brake actuator assembly) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
S1-27 (HDCS) - Body ground |
Always |
Below 1 Ω |
|
*a |
Front view of wire harness connector (to Skid Control ECU (Brake Actuator Assembly)) |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
RECONFIRM DTC |
(a) Clear the DTC (See page
).
(b) Check if the same DTC is recorded (See page
).
|
Result |
Proceed to |
|---|---|
|
DTC is output |
A |
|
DTC is not output |
B |
| A | |
REPLACE BRAKE ACTUATOR ASSEMBLY |
| B | |
USE SIMULATION METHOD TO CHECK |
Vehicle Control History
VEHICLE CONTROL HISTORY
VEHICLE CONTROL HISTORY
(a) A part of the control history can be confirmed using the vehicle control
history.
Click here ...
Steering Angle Sensor Zero Point Malfunction (C1290)
DESCRIPTION
The skid control ECU (brake actuator assembly) acquires steering angle sensor
zero point every time the ignition switch is turned ON and the vehicle is driven
at 35 km/h (22 mph) or m ...
Other materials:
A/C ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)
DESCRIPTION
This DTC is stored when items controlled by the Air conditioning amplifier assembly
cannot be customized via the navigation system vehicle customization screen.
HINT:
The Air conditioning amplifier assembly controls the air conditioning system
related items that are customizable v ...
Radio Broadcast cannot be Received or Poor Reception
PROCEDURE
1.
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY
(a) Check the radio automatic station search function.
(1) Check the radio automatic station search function by activating it.
Result
Result
Proceed to
Automatic station ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK STEERING WHEEL FREE PLAY
(a) Stop the vehicle and align the tires facing straight ahead.
(b) Gently turn the steering wheel right and left by hand, and check
the steering wheel free play.
Maximum free play:
30 mm (1.18 in.)
Text i ...
