Power Supply Drive Circuit (C1257)
DESCRIPTION
The motor relay (semiconductor relay) is built into the hydraulic brake booster
and drives the pump motor based on a signal from the skid control ECU (master cylinder
solenoid).
DTC No.
DTC Detecting Condition
Trouble Areas
C1257
...
Skid Control Buzzer Circuit (C1A4A)
DESCRIPTION
Based on dynamic radar cruise control system operation, the forward recognition
camera provides warnings to the driver by sounding the skid control buzzer.
DTC C1A4A is stored when a malfunction is detected in the skid control buzzer
circuit.
DTC No.
Detectio ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) The steering lock ECU (steering lock actuator or UPR bracket assembly) stores
DTCs when a malfunction occurs in the system. These DTCs can be confirmed by using
the Techstream.
NOTICE:
When using the Techstream with the engine switch off to confirm ...