Toyota CH-R Service Manual: Open in ABS Solenoid Relay Circuit (C146E)

Toyota CH-R Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / Open in ABS Solenoid Relay Circuit (C146E)

DESCRIPTION

The ABS solenoid relay is built into the skid control ECU in the brake actuator assembly. The ABS solenoid relay supplies power to the ABS and TRAC solenoids. The skid control ECU detects a solenoid relay malfunction by performing a self check and relay operation check.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C146E

Open in ABS Solenoid Relay Circuit

Either of the following is detected:

  • A solenoid relay drive circuit in the skid control ECU is malfunctioning.
  • The solenoid relay cannot be switched between on and off.

ABS solenoid relay (brake actuator assembly)
DTC Detection Conditions: C146E
 

Vehicle Condition

Pattern 1

Pattern 2

Diagnosis Condition

-

-

-

Malfunction Status

A solenoid relay drive circuit in the skid control ECU is malfunctioning.

○

-

The solenoid relay cannot be switched between on and off.

-

○

Detection Time

-

-

Number of Trips

1 trip

1 trip

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 system variant learning.

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PROCEDURE

1.

REPLACE BRAKE ACTUATOR ASSEMBLY

(a) Replace the ABS solenoid relay (brake actuator assembly).

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