Brake. Yaris. Ncp93, 131
Brake Control Dynamic Control Systems. Yaris. Ncp93, 131
Vehicle Stability Control System (For Hatchback With Built-In Type Yaw Rate Sensor) -- Problem Symptoms Table |
- HINT:
- 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
- NOTICE:
- When replacing the skid control ECU (brake actuator assembly), sensor, etc., turn the ignition switch off.
| Symptom | Suspected Area | See page |
| ABS, BA and/or EBD does not operate | Check for DTCs again and make sure that the normal system code is output. | YARIS_NCP93 RM000000XHV0CQX.html |
| IG power source circuit (low power supply voltage malfunction) | YARIS_NCP93 RM000000XW60CEX.html | |
| IG power source circuit (high power supply voltage malfunction) | YARIS_NCP93 RM00000368W03YX.html | |
| Front speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM000000XI90KDX.html | |
| Front speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000000XI90KEX.html | |
| Front speed sensor circuit (output malfunction) | YARIS_NCP93 RM000000XIA0EXX.html | |
| Rear speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM00000369R03UX.html | |
| Rear speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM00000369303TX.html | |
| Rear speed sensor circuit (output malfunction) | YARIS_NCP93 RM00000369S03XX.html | |
| Check the skid control ECU (brake actuator assembly) with the Techstream. (Check skid control ECU (brake actuator assembly) operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks. | YARIS_NCP93 RM000002VQ701VX.html | |
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). | YARIS_NCP93 RM000001BXP02KX.html | |
| ABS, BA and/or EBD does not operate efficiently | Check for DTCs again and make sure that the normal system code is output. | YARIS_NCP93 RM000000XHV0CQX.html |
| Front speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM000000XI90KDX.html | |
| Front speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000000XI90KEX.html | |
| Front speed sensor circuit (output malfunction) | YARIS_NCP93 RM000000XIA0EXX.html | |
| Rear speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM00000369R03UX.html | |
| Rear speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM00000369303TX.html | |
| Rear speed sensor circuit (output malfunction) | YARIS_NCP93 RM00000369S03XX.html | |
| Stop light switch circuit | YARIS_NCP93 RM000000XIE0G9X.html | |
| Check the skid control ECU (brake actuator assembly) with the Techstream. (Check skid control ECU (brake actuator assembly) operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks. | YARIS_NCP93 RM000002VQ701VX.html | |
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). | YARIS_NCP93 RM000001BXP02KX.html | |
| ABS sensor DTC check cannot be done | Check for DTCs again and make sure that the normal system code is output. | YARIS_NCP93 RM000000XHV0CQX.html |
| TC and CG terminal circuit | YARIS_NCP93 RM000000XIU0ERX.html | |
| If the symptoms still occur even after the above circuit in the suspected area has been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). | YARIS_NCP93 RM000001BXP02KX.html | |
| ABS warning light abnormal (Remains on) | ABS warning light circuit | YARIS_NCP93 RM000000XIH0CBX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| ABS warning light abnormal (Does not come on) | ABS warning light circuit | YARIS_NCP93 RM000000XIQ0C8X.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| Brake warning light abnormal (Remains on) | Brake warning light circuit | YARIS_NCP93 RM000000YHG0CDX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| Brake warning light abnormal (Does not come on) | Brake warning light circuit | YARIS_NCP93 RM000000YHH0CCX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| VSC and/or TRAC does not operate | Check for DTCs again and make sure that the normal system code is output. | YARIS_NCP93 RM000000XHV0CQX.html |
| IG power source circuit (low power supply voltage malfunction) | YARIS_NCP93 RM000000XW60CEX.html | |
| IG power source circuit (high power supply voltage malfunction) | YARIS_NCP93 RM00000368W03YX.html | |
| Check the hydraulic circuit for leaks. | - | |
| Front speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM000000XI90KDX.html | |
| Front speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000000XI90KEX.html | |
| Front speed sensor circuit (output malfunction) | YARIS_NCP93 RM000000XIA0EXX.html | |
| Rear speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM00000369R03UX.html | |
| Rear speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM00000369303TX.html | |
| Rear speed sensor circuit (output malfunction) | YARIS_NCP93 RM00000369S03XX.html | |
| Yaw rate and deceleration sensor (Airbag sensor assembly) circuit (zero point malfunction) | YARIS_NCP93 RM000000XIK08GX.html | |
| Yaw rate and deceleration sensor (Airbag sensor assembly) circuit (power supply malfunction) | YARIS_NCP93 RM000001RFV0BKX.html | |
| Deceleration sensor (Airbag sensor assembly) circuit (comparison malfunction) | YARIS_NCP93 RM0000035P403LX.html | |
| Yaw rate sensor (Airbag sensor assembly) circuit (comparison malfunction) | YARIS_NCP93 RM0000035P503FX.html | |
| Yaw rate and deceleration sensor (Airbag sensor assembly) circuit (stuck or output malfunction) | YARIS_NCP93 RM000001RFV0BJX.html | |
| Yaw rate and deceleration sensor (Airbag sensor assembly) circuit (internal malfunction) | YARIS_NCP93 RM0000035P403LX.html | |
| Steering angle sensor (spiral cable sub-assembly) circuit (zero point malfunction) | YARIS_NCP93 RM000000ZRR0AQX.html | |
| Steering angle sensor (spiral cable sub-assembly) circuit (power supply malfunction) | YARIS_NCP93 RM000000XIM0GSX.html | |
| Steering angle sensor (spiral cable sub-assembly) circuit (output malfunction) | YARIS_NCP93 RM000000XIM0GUX.html | |
| Steering angle sensor (spiral cable sub-assembly) circuit (internal malfunction) | YARIS_NCP93 RM000000XIM0GTX.html | |
| If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). | YARIS_NCP93 RM000001BXP02KX.html | |
| VSC sensor DTC check cannot be done | Check for DTCs again and make sure that the normal system code is output. | YARIS_NCP93 RM000000XHV0CQX.html |
| TC and CG terminal circuit | YARIS_NCP93 RM000000XIU0ERX.html | |
| If the symptoms still occur even after the above circuit in suspected areas has been inspected and proved to be normal, replace the skid control ECU (brake actuator assembly). | YARIS_NCP93 RM000001BXP02KX.html | |
| TRAC OFF indicator abnormal (Remains on) | TRAC OFF indicator light circuit | YARIS_NCP93 RM00000452200UX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| TRAC OFF indicator abnormal (Does not come on) | TRAC OFF indicator light circuit | YARIS_NCP93 RM00000452300TX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| VSC OFF indicator abnormal (Remains on) | VSC OFF indicator light circuit | YARIS_NCP93 RM000001FQO0BFX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| VSC OFF indicator abnormal (Does not come on) | VSC OFF indicator light circuit | YARIS_NCP93 RM000001FQP0B5X.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| SLIP indicator light abnormal (Remains on) | SLIP indicator light circuit | YARIS_NCP93 RM000000YHI091X.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| SLIP indicator light abnormal (Does not come on) | SLIP indicator light circuit | YARIS_NCP93 RM000000YHJ090X.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| Sensor check cannot be done | TS and CG terminal circuit | YARIS_NCP93 RM000000XIU0ESX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html |