DTC C1427: Motor Malfunction: Procedure

B → See step   3 

A: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (GND2 CIRCUIT) 

OK: Go to next step 

HINT: 

This code is stored when a problem is identified in the brake actuator assembly.

The motor relay is in the brake actuator assembly.

Therefore, motor relay unit inspections cannot be performed. Be sure to check if the DTC is output before replacing the brake actuator assembly.

1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
2. Turn the ignition switch off.
3. Start the engine.
4. Drive the vehicle at a speed of 20 km/h (12 mph) or more for 30 seconds or more.
5. Check if the same DTC is output. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   DTC (C1427) is not output	A
   DTC (C1427) is output	B

   HINT: 

   • If a speed signal of 6 km/h (4 mph) or more is input to the skid control ECU with the ignition switch ON and the stop light switch off, the ECU performs self-diagnosis of the motor and solenoid circuits.
   • If the normal system code is output (no trouble codes are output), slightly jiggle the connectors, wire harnesses and fuses of the brake actuator assembly. Make sure that no DTCs are output.
   • If any DTCs are output while jiggling a connector or wire harness of the brake actuator assembly (skid control ECU), inspect and repair the connector or wire harness. The DTCs were probably output due to a bad connection of the connector terminal.

B → See step   5 

A → See step   4