ABS System

ABS System

DIAGNOSTIC PROCEDURE

1. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit).
Refer to BRC-91, "SELF-DIAGNOSIS" (with hill decent control and hill start assist).
or
Refer to BRC-29, "SELF-DIAGNOSIS" (without hill decent control and hill start assist).
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.

2. CHECK DIFFERENTIAL LOCK CONTROL UNIT
Check differential lock control unit input/output signal. Refer to RFD-85, "Differential Lock Control Unit Input/Output Signal Reference Values". Pinout Values and Diagnostic Parameters
OK or NG
OK >> GO TO 3.
NG >> Check differential lock control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.

3. CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
OK >> Inspection End.
NG >> Perform self-diagnosis with ABS actuator and electric unit (control unit) again.
Refer to BRC-91, "SELF-DIAGNOSIS" (with hill decent control and hill start assist).
or
Refer to BRC-29, "SELF-DIAGNOSIS" (without hill decent control and hill start assist).