2007 Lexus GS450h – Brake Warning Lights With C1203 C1336 C1345
- Aug 15
- 1 min read
Updated: Aug 15
CUSTOMER CONCERN
Customer states the brake and traction-control warning lights are on. DTCs C1203, C1336 and C1345 are stored.
CAUSE
The brake system had not completed linear-solenoid valve offset learning and acceleration-sensor zero-point calibration.
CORRECTION
Perform linear-solenoid valve offset relearn and acceleration-sensor zero-point calibration with a compatible scan tool. Clear brake-system DTCs.
