C1252
DTC C1252/52 Brake Booster Pump Motor on Time Abnormally LongDESCRIPTION
DTC Detection Condition:
The motor relay (semiconductor relay) is built in the master cylinder solenoid and drivers the pump motor based on a signal from the skid control ECU.
HINT: The pump motor continues operation for the first 3 minutes, then repeats start and stop.
Wiring Diagram:
Step 1-2:
Step 3-5:
Step 5(Continued):
INSPECTION PROCEDURE
NOTE: When replacing the master cylinder solenoid, perform zero point calibration. Calibration
HINT: When C1253/53, C1254/54, or C1256/56 is output together with C1252/52, inspect and repair the trouble area indicated by C1253/53, C1254/54, or C1256/56 first.