Toyota Tacoma (2015-2018) Service Manual: Clutch Switch Circuit
DESCRIPTION
Clutch switch circuit inspection is necessary for manual transmission vehicles.
When the clutch pedal is released, the ECM receives the positive (+) battery voltage through the ECU-IG NO. 2 fuse and ignition switch. While the clutch pedal is depressed, the clutch switch assembly sends a signal to terminal D of the ECM. The ECM cancels cruise control when terminal D receives the signal (voltage of below 1 V).
WIRING DIAGRAM
.png)
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (ECM - BATTERY) |
|
(a) Disconnect the ECM connector. |
|
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E12-27 (D) - Body ground |
Clutch pedal depressed |
Below 1 V |
|
E12-27 (D) - Body ground |
Clutch pedal released |
11 to 14 V |
(d) Reconnect the ECM connector.
|
Proceed to |
|
OK |
|
NG |
| OK | .gif) |
PROCEED TO PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
.gif)
|
2. |
INSPECT CLUTCH SWITCH ASSEMBLY |
|
(a) Remove the clutch switch assembly. Click here |
|
.gif)
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C14-1 - C14-2 |
Switch pin free |
10 kΩ or higher |
|
C14-1 - C14-2 |
Switch pin pushed in |
Below 1 Ω |
(c) Reinstall the clutch switch.
|
Proceed to |
|
OK |
|
NG |
| NG | |
REPLACE CLUTCH SWITCH ASSEMBLY |
|
|
3. |
CHECK HARNESS AND CONNECTOR (CLUTCH SWITCH ASSEMBLY - ECM) |
(a) Disconnect the E12 ECM connector.
(b) Disconnect the C14 clutch switch assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C14-2 - Body ground |
Always |
10 kΩ or higher |
|
C14-2 - E12-27 (D) |
Always |
Below 1 Ω |
(d) Reconnect the clutch switch connector.
(e) Reconnect the ECM connector.
|
Proceed to |
|
OK |
|
NG |
| OK | |
REPAIR OR REPLACE HARNESS OR CONNECTOR (CLUTCH SWITCH ASSEMBLY - BATTERY) |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR (CLUTCH SWITCH ASSEMBLY - ECM) |
Vehicle Information Not Obtained (C1A02)
DESCRIPTION
When a new millimeter wave radar sensor assembly is installed, it receives vehicle
specification information (destination, steering wheel position, 2WD or 4WD, etc.)
from the main bod ...
Cruise Control Switch Circuit
DESCRIPTION
The cruise control main switch is used to turn the dynamic radar cruise control
system on and off, as well as operate 7 functions: SET, - (COAST), TAP-DOWN, RES
(RESUME), + (ACCEL), T ...
Other materials:
Installation
INSTALLATION
PROCEDURE
1. INSTALL CLUTCH DISC ASSEMBLY
(a) Insert SST into the clutch disc assembly, and then install SST and the clutch
disc assembly together to the flywheel sub-assembly.
Text in Illustration
Flywheel Sub-assembly Side
SST: 09301-00220
NOTICE ...
Data List / Active Test
DATA LIST / ACTIVE TEST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether a part
is faulty or not.
HINT:
Using the Techstream to read the Data List allows the values or s ...
Low Output Signal of Front Speed Sensor RH (Test Mode DTC) (C1271,C1272,C1401,C1402)
DESCRIPTION
The speed sensor detects the wheel speed and sends the appropriate signals to
the skid control ECU (master cylinder solenoid). These signals are used for brake
control.
The speed sensor rotors have rows of alternating N and S magnetic poles and their
magnetic fields change when t ...
