Brake. Yaris. Ncp93, 131
Brake Control Dynamic Control Systems. Yaris. Ncp93, 131
Vehicle Stability Control System (For Hatchback With Separate 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 RM000000XHV0D3X.html |
| IG power source circuit (low power supply voltage malfunction) | YARIS_NCP93 RM000000XW60CQX.html | |
| IG power source circuit (high power supply voltage malfunction) | YARIS_NCP93 RM00000368W049X.html | |
| Front speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM000000XI90L3X.html | |
| Front speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000000XI90L4X.html | |
| Front speed sensor circuit (output malfunction) | YARIS_NCP93 RM000000XIA0FEX.html | |
| Rear speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM00000369R041X.html | |
| Rear speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000003693040X.html | |
| Rear speed sensor circuit (output malfunction) | YARIS_NCP93 RM00000369S044X.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 RM000000XHV0D3X.html |
| Front speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM000000XI90L3X.html | |
| Front speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000000XI90L4X.html | |
| Front speed sensor circuit (output malfunction) | YARIS_NCP93 RM000000XIA0FEX.html | |
| Rear speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM00000369R041X.html | |
| Rear speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000003693040X.html | |
| Rear speed sensor circuit (output malfunction) | YARIS_NCP93 RM00000369S044X.html | |
| Stop light switch circuit | YARIS_NCP93 RM000000XIE0GZX.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 RM000000XHV0D3X.html |
| TC and CG terminal circuit | YARIS_NCP93 RM000000XIU0FCX.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 RM000000XIH0CPX.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 RM000000XIQ0CMX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| Brake warning light abnormal (Remains on) | Brake warning light circuit | YARIS_NCP93 RM000000YHG0CRX.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 RM000000YHH0CQX.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 RM000000XHV0D3X.html |
| IG power source circuit (low power supply voltage malfunction) | YARIS_NCP93 RM000000XW60CQX.html | |
| IG power source circuit (high power supply voltage malfunction) | YARIS_NCP93 RM00000368W049X.html | |
| Check the hydraulic circuit for leaks. | - | |
| Front speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM000000XI90L3X.html | |
| Front speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000000XI90L4X.html | |
| Front speed sensor circuit (output malfunction) | YARIS_NCP93 RM000000XIA0FEX.html | |
| Rear speed sensor circuit (comparison malfunction) | YARIS_NCP93 RM00000369R041X.html | |
| Rear speed sensor circuit (open or short malfunction) | YARIS_NCP93 RM000003693040X.html | |
| Rear speed sensor circuit (output malfunction) | YARIS_NCP93 RM00000369S044X.html | |
| Yaw rate and deceleration sensor (yaw rate sensor) circuit (zero point malfunction) | YARIS_NCP93 RM000000XIK08RX.html | |
| Yaw rate and deceleration sensor (yaw rate sensor) circuit (power supply malfunction) | YARIS_NCP93 RM000001RFV0C0X.html | |
| deceleration sensor (Yaw rate sensor) circuit (comparison malfunction) | YARIS_NCP93 RM0000035P403UX.html | |
| Yaw rate sensor (Yaw rate sensor) circuit (comparison malfunction) | YARIS_NCP93 RM0000035P503OX.html | |
| Yaw rate and deceleration sensor (yaw rate sensor) circuit (stuck or output malfunction) | YARIS_NCP93 RM000001RFV0BZX.html | |
| Yaw rate and deceleration sensor (yaw rate sensor) circuit (internal malfunction) | YARIS_NCP93 RM0000035P403UX.html | |
| Steering angle sensor (spiral cable sub-assembly) circuit (zero point malfunction) | YARIS_NCP93 RM000000ZRR0B2X.html | |
| Steering angle sensor (spiral cable sub-assembly) circuit (power supply malfunction) | YARIS_NCP93 RM000000XIM0HOX.html | |
| Steering angle sensor (spiral cable sub-assembly) circuit (output malfunction) | YARIS_NCP93 RM000000XIM0HQX.html | |
| Steering angle sensor (spiral cable sub-assembly) circuit (internal malfunction) | YARIS_NCP93 RM000000XIM0HPX.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 RM000000XHV0D3X.html |
| TC and CG terminal circuit | YARIS_NCP93 RM000000XIU0FCX.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 RM00000452200YX.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 RM00000452300YX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| VSC OFF indicator abnormal (Remains on) | VSC OFF indicator light circuit | YARIS_NCP93 RM000001FQO0BSX.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 RM000001FQP0BIX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| SLIP indicator light abnormal (Remains on) | SLIP indicator light circuit | YARIS_NCP93 RM000000YHI09AX.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 RM000000YHJ099X.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html | |
| Sensor check cannot be done | TS and CG terminal circuit | YARIS_NCP93 RM000000XIU0FDX.html |
| Skid control ECU (brake actuator assembly) | YARIS_NCP93 RM000001BXP02KX.html |