Toyota Tacoma 2015-2018 Service Manual: SM Solenoid Circuit (C1225-C1228,C1468,C1469,C146A,C146B)
DESCRIPTION
The solenoid goes on when signals are received from the skid control ECU (master cylinder solenoid) and controls the pressure action on the wheel cylinders thus controlling the braking force.
|
DTC No. |
DTC Detecting Conditions |
Trouble Areas |
|---|---|---|
|
C1225 |
Open or short in SMCR circuit continues for 0.05 seconds or more. |
|
|
C1226 |
Open or short in SREA circuit continues for 0.05 seconds or more. |
|
|
C1227 |
Open or short in SREC circuit continues for 0.05 seconds or more. |
|
|
C1228 |
Open or short in STR circuit continues for 0.05 seconds or more. |
|
|
C1468 |
Open or short in SFRH or SFRR circuit continues for 0.05 seconds or more. |
|
|
C1469 |
Open or short in SFLH or SFLR circuit continues for 0.05 seconds or more. |
|
|
C146A |
Open or short in SRRH or SRRR circuit continues for 0.05 seconds or more. |
|
|
C146B |
Open or short in SRLH or SRLR circuit continues for 0.05 seconds or more. |
|
WIRING DIAGRAM
PROCEDURE
|
1. |
RECONFIRM DTC |
HINT:
This DTCs are set when a problem is identified in the master cylinder solenoid.
The solenoid circuit is in the master cylinder solenoid.
Therefore, solenoid circuit inspection and solenoid unit inspection cannot be performed. Be sure to check if the DTCs are output before replacing the master cylinder solenoid.
(a) Clear the DTC (See page .gif)
).
(b) Check if the same DTCs are detected.
|
Result |
Proceed to |
|---|---|
|
DTC output |
A |
|
DTC not output |
B |
| A | .gif) |
REPLACE MASTER CYLINDER SOLENOID |
| B | |
END |
Zero Point Calibration of Yaw Rate Sensor Undone (C1210,C1336)
DESCRIPTION
The skid control ECU (master cylinder solenoid) receives signals from the yaw
rate and acceleration (airbag sensor assembly) via the CAN communication system.
The airbag sensor assembl ...
Acceleration Sensor Stuck Malfunction (C1232,C1243,C1245,C1279)
DESCRIPTION
The skid control ECU (master cylinder solenoid) receives signals from the yaw
rate and acceleration (airbag sensor assembly) via the CAN communication system.
The airbag sensor assembl ...
Other materials:
Slip Indicator Light Remains ON
DESCRIPTION
The skid control ECU (brake actuator assembly) is connected to the combination
meter assembly via CAN communication.
The slip indicator light blinks during VSC and/or TRAC operation.
If a malfunction is detected, the slip indicator light comes on to warn the driver
(See page ).
...
Air Conditioning Compressor Magnetic Clutch Circuit
DESCRIPTION
When the air conditioning amplifier assembly is turned on, a magnetic clutch
on signal is sent from the MGC terminal of the air conditioning amplifier assembly.
Then, the MG CLT relay turns on to operate the magnetic clutch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NO ...
Some Alarm Functions do not Operate
DESCRIPTION
When the alarm sounds, the following alarm functions operate: the roof console
box assembly and No. 1 room light assembly illuminates, and the headlights, taillights
and hazard lights flash, and the security horn and vehicle horn sound intermittently.
WIRING DIAGRAM
CAUTION / ...
