C1235 (blink 35) on Toyota Corolla E120: Foreign Matter is Attached on Tip of Right
Short answer: C1235 means “Foreign Matter is Attached on Tip of Right”. The car’s computer has found a fault in the ABS with BA & EBD system and turns on the ABS warning. First check: workshop check order (RM821E): READ VALUE OF SPEED SENSOR FRONT RH -> INSPECT SPEED SENSOR FRONT RH -> INSPECT HARNESS AND CONNECTOR (FRONT RIGHT SPEED SENSOR − -> INSPECT SPEED SENSOR AND SENSOR ROTOR SERRATIONS -> INSPECT SPEED SENSOR FRONT RH INSTALLATION -> INSPECT SPEED SENSOR FRONT RH TIP -> INSPECT SHAFT ASSY, OUTBOARD JOINT, LH (SENSOR ROTOR).
- Code
- C1235 · blink 35
- System
- ABS with BA & EBD
- Dashboard light
- ABS warning
- Applies to
- All E120 with ABS (BA & EBD)
- Confidence
- high (official Toyota RM821E)
- Source
- toyotamanuals.gitlab.io
Symptoms and when it is set
- Detection of any of conditions from 1. through 4.: 1. With vehicle speed at 10 km/h or more, sensor signal circuit of faulty wheel is open or short for 15 sec. or longer. 2. Momentary interruption of sensor signal of faulty wheel has occurred 7 times or more. 3. With vehicle speed at 20 km/h or more, sensor signal of faulty wheel generated noise for 5 sec. or longer. 4. Sensor signal circuit is open for 0.025 sec. or longer.
Likely causes
- Right front speed sensor; Speed sensor circuit; Sensor installation; Sensor rotor
What to check, in order
- Workshop check order (RM821E): READ VALUE OF SPEED SENSOR FRONT RH -> INSPECT SPEED SENSOR FRONT RH -> INSPECT HARNESS AND CONNECTOR (FRONT RIGHT SPEED SENSOR − -> INSPECT SPEED SENSOR AND SENSOR ROTOR SERRATIONS -> INSPECT SPEED SENSOR FRONT RH INSTALLATION -> INSPECT SPEED SENSOR FRONT RH TIP -> INSPECT SHAFT ASSY, OUTBOARD JOINT, LH (SENSOR ROTOR)
Related on this car
Same code on other cars
Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.

