C1251

BRAKE CONTROL: ANTI-LOCK BRAKE SYSTEM (for Sedan): C1251/51: Open in Pump Motor Circuit

DTC C1251/51 - Open in Pump Motor Circuit

DESCRIPTION

The motor relay (semiconductor relay) is housed in the skid control ECU and drives the pump motor based on a signal from the skid control ECU.






WIRING DIAGRAM

C0226.






INSPECTION PROCEDURE

PROCEDURE

1. CHECK POWER SOURCE CIRCUIT
(a) Check that the battery voltage, power source voltage, and the ground condition of the skid control ECU are normal.
OK:
The battery voltage, power source voltage, and the ground condition of the skid control ECU are normal.
NG -- REPAIR POWER SOURCE CIRCUIT
OK -- Continue to next step.
2. RECONFIRM DTC
(a) Clear the DTC ABS (Antilock Brake System) (for Sedan).
(b) Start the engine.
(c) Drive the vehicle at a speed of 4 mph (6 km/h) or more for several seconds.
(d) Check if the same DTC is output ABS (Antilock Brake System) (for Sedan).
Result:






B -- END
A -- REPLACE BRAKE ACTUATOR