Toyota Tacoma manuals

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.

  • Master cylinder solenoid
  • SMCR circuit

C1226

Open or short in SREA circuit continues for 0.05 seconds or more.

  • Master cylinder solenoid
  • SREA circuit

C1227

Open or short in SREC circuit continues for 0.05 seconds or more.

  • Master cylinder solenoid
  • SREC circuit

C1228

Open or short in STR circuit continues for 0.05 seconds or more.

  • Master cylinder solenoid
  • STR circuit

C1468

Open or short in SFRH or SFRR circuit continues for 0.05 seconds or more.

  • Master cylinder solenoid
  • SFRH or SFRR circuit

C1469

Open or short in SFLH or SFLR circuit continues for 0.05 seconds or more.

  • Master cylinder solenoid
  • SFLH or SFLR circuit

C146A

Open or short in SRRH or SRRR circuit continues for 0.05 seconds or more.

  • Master cylinder solenoid
  • SRRH or SRRR circuit

C146B

Open or short in SRLH or SRLR circuit continues for 0.05 seconds or more.

  • Master cylinder solenoid
  • SRLH or SRLR circuit

WIRING DIAGRAM

PROCEDURE

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 ). (b) Check if the same DTCs are detected. ).

(b) Check if the same DTCs are detected.

Result

Proceed to

DTC output

A

DTC not output

B

A

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:

Removal
REMOVAL PROCEDURE 1. REMOVE TIMING CHAIN COVER ASSEMBLY (See page ) 2. SEPARATE NO. 2 WATER BY-PASS PIPE (for Vacuum Brake Booster) 3. REMOVE VACUUM PUMP ASSEMBLY (for Vacuum Brake Booster) 4. SET NO. 1 CYLINDER TO TDC/COMPRESSION 5. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY 6. REMO ...

Inspection
INSPECTION PROCEDURE 1. INSPECT TRANSMISSION FLOOR SHIFT ASSEMBLY (w/o Smart Key System) HINT: If the results of the following inspections are as specified but a malfunction has occurred, replace the transmission floor shift assembly. (a) Inspect the wire harness. (1) Disconnect the shift lo ...

Security Indicator Light Does not Blink
DESCRIPTION The certification ECU (smart key ECU assembly) blinks the security indicator light when the immobiliser is set (engine switch off, or driver door is opened and closed with engine switch on (IG)). The certification ECU (smart key ECU assembly) receive the security ...

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