Toyota Tacoma (2015-2018) Service Manual: TS and CG Terminal Circuit
DESCRIPTION
In Test Mode (signal check), a malfunction in the speed sensor that cannot be detected when the vehicle is stopped can be detected while driving.
Sensor check mode can be entered by connecting terminals TS and CG of the DLC3 and turning the ignition switch from off to ON.
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
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).
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - TS of DLC3) |
(a) Turn the ignition switch off.
(b) Disconnect the S1 skid control ECU (brake actuator assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
S1-24 (TS) - D4-12 (TS) |
Always |
Below 1 Ω |
|
S1-24 (TS) or D4-12 (TS) - Body ground |
Always |
10 kΩ or higher |
| NG | .gif) |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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|
2. |
CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
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| OK | |
REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
VSC Buzzer Circuit
DESCRIPTION
The skid control ECU (brake actuator assembly) is connected to the combination
meter via CAN communication.
The combination meter has a built-in VSC warning buzzer:
Sounds inte ...
VSC OFF Switch Circuit
DESCRIPTION
The skid control ECU assembly is connected to the combination meter assembly
via CAN communication.
Pressing the VSC OFF switch turns off TRAC operation, and pressing and holding
thi ...
Other materials:
Parts Location
PARTS LOCATION
ILLUSTRATION
*A
for Hydraulic Brake Booster
*B
for Vacuum Brake Booster
*1
FORWARD RECOGNITION CAMERA
*2
MILLIMETER WAVE RADAR SENSOR ASSEMBLY
*3
HYDRAULIC BRA ...
Freeze Frame Data
FREEZE FRAME DATA
1. FREEZE FRAME DATA
(a) When a DTC is stored, the 4 wheel drive control ECU stores the current vehicle
state as Freeze Frame Data.
HINT:
Freeze Frame Data at the time a DTC is stored:
When the 4 wheel drive control ECU stores data at the time a DTC is stored, no
updates w ...
AUTO LSD Indicator Light does not Come ON
DESCRIPTION
The AUTO LSD does not operate even if the VSC OFF switch is pressed under the
following conditions:
The brake system is faulty.
The temperature inside the hydraulic brake booster increases and the
AUTO LSD operation is suspended.
The rear differential is locked.
...
