Vehicle Stability Control System (For Vacuum Brake Booster) Problem Symptoms Table

Vehicle Stability Control System (For Vacuum Brake Booster) -- Problem Symptoms Table


HINT:
  1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.
NOTICE:
When replacing the brake actuator assembly, sensor, etc., turn the ignition switch off.

Vehicle Stability Control System
Symptom
Suspected Area
See page
ABS, BA and/or EBD does not operate
Check for DTCs again and make sure that normal system code is output
LandCruiser RM000000XHV0KEX.html
IG power source circuit (low power supply voltage malfunction)
LandCruiser RM000000XW60J6X.html
IG power source circuit (high power supply voltage malfunction)
LandCruiser RM00000368W09RX.html
Front speed sensor circuit (comparison malfunction)
LandCruiser RM000000XI910KX.html
Front speed sensor circuit (open or short malfunction)
LandCruiser RM000000XI910LX.html
Front speed sensor circuit (output malfunction)
LandCruiser RM000000XIA0OYX.html
Rear speed sensor circuit (comparison malfunction)
LandCruiser RM00000369R08RX.html
Rear speed sensor circuit (open or short malfunction)
LandCruiser RM00000369308TX.html
Rear speed sensor circuit (output malfunction)
LandCruiser RM00000369S08XX.html
Check brake actuator assembly with intelligent tester (check brake actuator assembly operation using Active Test function). If abnormal, check hydraulic circuit for leaks.
LandCruiser RM000002VQ703OX.html
If symptoms still occur even after above circuits in suspected area column have been inspected and proved to be normal, replace brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
ABS, BA and/or EBD does not operate efficiently
Check for DTCs again and make sure that normal system code is output
LandCruiser RM000000XHV0KEX.html
Front speed sensor circuit (comparison malfunction)
LandCruiser RM000000XI910KX.html
Front speed sensor circuit (open or short malfunction)
LandCruiser RM000000XI910LX.html
Front speed sensor circuit (output malfunction)
LandCruiser RM000000XIA0OYX.html
Rear speed sensor circuit (comparison malfunction)
LandCruiser RM00000369R08RX.html
Rear speed sensor circuit (open or short malfunction)
LandCruiser RM00000369308TX.html
Rear speed sensor circuit (output malfunction)
LandCruiser RM00000369S08XX.html
Stop light switch circuit
LandCruiser RM000000XIE0VHX.html
Check brake actuator assembly with the intelligent tester (check brake actuator assembly operation using Active Test function). If abnormal, check hydraulic circuit for leaks.
LandCruiser RM000002VQ703OX.html
If symptoms still occur even after above circuits in suspected area column have been inspected and proved to be normal, replace brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
ABS warning light abnormal (Remains on)
ABS warning light circuit
LandCruiser RM000000XIH0KFX.html
IG power source circuit (High power supply voltage malfunction)
LandCruiser RM00000368W09RX.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
ABS warning light abnormal (Does not come on)
ABS warning light circuit
LandCruiser RM000000XIQ0K7X.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
Brake warning light abnormal (Remains on)
Brake warning light circuit
LandCruiser RM000000YHG0KFX.html
IG power source circuit (High power supply voltage malfunction)
LandCruiser RM00000368W09RX.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
Brake warning light abnormal (Does not come on)
Brake warning light circuit
LandCruiser RM000000YHH0K7X.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
VSC and/or TRC does not operate
Check for DTCs again and make sure that normal system code is output
LandCruiser RM000000XHV0KEX.html
IG power source circuit (low power supply voltage malfunction)
LandCruiser RM000000XW60J6X.html
IG power source circuit (high power supply voltage malfunction)
LandCruiser RM00000368W09RX.html
Check hydraulic circuit for leaks
-
Front speed sensor circuit (comparison malfunction)
LandCruiser RM000000XI910KX.html
Front speed sensor circuit (open or short malfunction)
LandCruiser RM000000XI910LX.html
Front speed sensor circuit (output malfunction)
LandCruiser RM000000XIA0OYX.html
Rear speed sensor circuit (comparison malfunction)
LandCruiser RM00000369R08RX.html
Rear speed sensor circuit (open or short malfunction)
LandCruiser RM00000369308TX.html
Rear speed sensor circuit (output malfunction)
LandCruiser RM00000369S08XX.html
Yaw rate and acceleration sensor circuit (zero point malfunction)
LandCruiser RM000000XIK0F2X.html
Yaw rate and acceleration sensor circuit (power supply malfunction)
LandCruiser RM000001RFV0LIX.html
Acceleration sensor circuit (comparison malfunction)
LandCruiser RM0000035P607SX.html
Yaw rate sensor circuit (comparison malfunction)
LandCruiser RM0000035P508EX.html
Yaw rate and acceleration sensor circuit (stuck or output malfunction)
LandCruiser RM000001RFV0LHX.html
Yaw rate and acceleration sensor circuit (internal malfunction)
LandCruiser RM0000035P408JX.html
Steering angle sensor circuit (zero point malfunction)
LandCruiser RM000000ZRR0HGX.html
Steering angle sensor circuit (power supply malfunction)
LandCruiser RM000000XIM0Z7X.html
Steering angle sensor circuit (output malfunction)
LandCruiser RM000000XIM0Z9X.html
Steering angle sensor circuit (internal malfunction)
LandCruiser RM000000XIM0Z8X.html
If symptoms still occur even after above circuits in suspected area column have been inspected and proved to be normal, replace brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
VSC OFF indicator abnormal (Remains on)
VSC OFF indicator light circuit
LandCruiser RM000001FQO0LMX.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
VSC OFF indicator abnormal (Does not come on)
VSC OFF indicator light circuit
LandCruiser RM000001FQP0L4X.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
Slip indicator light abnormal (Remains on)
Slip indicator light circuit
LandCruiser RM000000YHI0FTX.html
IG power source circuit (High power supply voltage malfunction)
LandCruiser RM00000368W09RX.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
Slip indicator light abnormal (Does not come on)
Slip indicator light circuit
LandCruiser RM000000YHJ0FSX.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
TRC OFF indicator light abnormal (Remains on)
TRC OFF indicator light circuit
LandCruiser RM000003QXV02CX.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
TRC OFF indicator light abnormal (Does not come on)
TRC OFF indicator light circuit
LandCruiser RM000003QXW02CX.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
DTC check cannot be performed
Check for DTCs again and make sure that normal system code is output
LandCruiser RM000000XHV0KEX.html
TC and CG terminal circuit
LandCruiser RM000000XIU0S7X.html
IG power source circuit (high power supply voltage malfunction)
LandCruiser RM00000368W09RX.html
If symptoms still occur even after above circuits in suspected area column have been inspected and proved to be normal, replace brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
Sensor check cannot be performed
TS and CG terminal circuit
LandCruiser RM000001DXV03SX.html
Brake actuator assembly (skid control ECU)
LandCruiser RM0000034UX02TX.html
Buzzer abnormal
VSC buzzer circuit
LandCruiser RM000000XIS0DNX.html