Toyota Corolla Cross: Front Door Window Frame Moulding

 Electronic Brake Booster Control Module "A" Signal Compare Failure (C121F62)

DESCRIPTION When the self-check function of the electric brake booster (brake booster with master cylinder assembly) detects an internal circuit malfunction, this DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area M

 Precaution

PRECAUTION PRECAUTIONS WHEN USING GTS (a) When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under