C1238 (blink 38) on Toyota Corolla E120: Foreign matter is Attached on Tip of Right

Short answer: C1238 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: right rear, left rear speed sensor; Each speed sensor circuit; Sensor installation; Sensor rotor.

Code

C1238 · blink 38

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

1. 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

1. Right rear, left rear speed sensor; Each speed sensor circuit; Sensor installation; Sensor rotor

Related on this car

• All fault codes for this car
• Warning lights
• Where the parts are (parts map)
• Common problems

Same code on other cars

• C1238 · Toyota Passo (1st gen)
• C1238 on all cars compared

← C1236/36 C1239/39 →

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.