Dynamic Radar Cruise Control System Diagnostic Trouble Code Chart

Cruise Control System. Lexus Gs430, Gs300. Uzs190 Grs190
Cruise Control. Lexus Gs430, Gs300. Uzs190 Grs190

Dynamic Radar Cruise Control System -- Diagnostic Trouble Code Chart


If a trouble code is displayed during the DTC check, check the circuit listed for that code in the table below and proceed to the appropriate page.

DTC No.
Detection Item
Trouble Area
See page
P0500
Vehicle Speed Sensor Malfunction
- Combination meter
- Vehicle speed sensor
- Vehicle speed signal circuit
- ECM
Click here
P0503
Vehicle Speed Sensor "A" Intermittent / Erratic / High
- Combination meter
- Vehicle speed sensor
- Vehicle speed signal circuit
- ECM
Click here
P0571
Brake Switch "A" Circuit
- Stop light switch
- Stop light switch circuit
- ECM
Click here
P0607
Control Module Performance
- ECM (This DTC indicates malfunction in ECM. When this DTC is output, it is necessary to replace ECM)
Click here
P1570
Radar Sensor Malfunction
- Millimeter wave radar sensor
Click here
P1572
Improper Aiming of Radar Sensor Beam Axis
- Millimeter wave radar sensor
Click here
P1575
Warning Buzzer Malfunction
- Skid control buzzer
- Skid control buzzer circuit
- ABS & traction actuator (Skid control ECU)
Click here
P1578
Brake System Malfunction
- VSC system
Click here
P1615
Communication Error from Distance Control ECU to ECM
- Communication circuit
- Distance control ECU (Cruise control ECU)
- ECM
Click here
P1616
Communication Error from ECM to Distance Control ECU
- Communication circuit
- ECM
- Distance control ECU (Cruise control ECU)
Click here
P1617
Distance Control ECU Malfunction
- Distance control ECU (Cruise control ECU)
Click here
P1630
Communication Error from VSC to ECM
- Communication circuit
- ABS & traction actuator (Skid control ECU)
- ECM
- Distance control ECU (Cruise control ECU)
Click here
P1631
Communication Error from ECM to VSC
- Communication circuit
- ABS & traction actuator (Skid control ECU)
- ECM
Click here
U0100
Lost Communication with ECM/PCM "A"
- Communication circuit
- ECM
- Distance control ECU (Cruise control ECU)
Click here
U0100
Lost Communication with ECM/PCM "A"
- Communication circuit
- ECM
- ABS & traction actuator (Skid control ECU)
Click here
U0122
Lost Communication with Vehicle Dynamics Control Module
- Communication circuit
- ABS & traction actuator (Skid control ECU)
- ECM
Click here
U0123
Communication Error of Yaw Rate Sensor
- Communication circuit
- Yaw rate sensor
- Distance control ECU (Cruise control ECU)
Click here
U0126
Lost Communication with Steering Angle Sensor Module
- Communication circuit
- Steering sensor
- Distance control ECU (Cruise control ECU)
- ECM
Click here
U0235
Lost Communication With Cruise Control Front Distance Range Sensor
- Communication circuit
- Millimeter wave radar sensor
- Distance control ECU (Cruise control ECU)
Click here
U1101
Lost Communication With Distance Control ECU
- Communication circuit
- Distance control ECU (Cruise control ECU)
- ECM
Click here
U1102
Lost Communication With Radar Sensor
- Communication circuit
- Millimeter wave radar sensor
- Distance control ECU (Cruise control ECU)
Click here