Toyota Camry Manual page 798

BR–112
DTC 13,14 ABS Control (Motor) Relay Circuit
CIRCUIT DESCRIPTION
The ABS control (motor) relay supplies power to the ABS pump motor. While the ABS is activated,
the ECU switches the control (motor) relay ON and operates the ABS pump motor.
Diagnostic Trouble Code Detecting Condition
DTC No.
Conditions (1) and (2) continued for 0.2 sec. or
more:
(1) ABS control (motor) relay terminal (MR)
voltage: Battery positive voltage
(2) ABS control (motor) relay monitor terminal
(MT) voltage: 0 V
Conditions (1) and (2) continued for 4 sec. or
more:
(1) ABS control (motor) relay terminal (MR)
voltage: 0 V
(2) ABS control (motor) relay monitor terminal
(MT) voltage: Battery positive voltage
Fail safe function: If trouble occurs in the control (motor) relay circuit, the ECU cuts off current to the
ABS control (solenoid) relay and prohibits ABS control.
DIAGNOSTIC CHART
Check voltage of ABS control relay connector.
Check continuity between relay and pump motor
and ECU.
Check ABS control relay.
Check for open and short in harness and con–
nector between relay and ECU.
If the same code is still output after the diagnostic trouble code is deleted, check the contact condition
of each connection.
If the connections are normal, the ECU may be defective.
BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS)
Trouble area
ABS control (motor) relay.
Open or short in ABS control (motor) relay
circuit.
ECU.
ABS control (motor) relay.
B+ short in ABS control (motor) relay circuit.
ECU.
Check and repair harness or connector.
Repair or replace harness or ABS ac–
tuator.
Replace ABS control relay.
Repair or replace harness or connector.