C0274 (blink 14) on Toyota Corolla E120: Short in ABS Motor Relay Circuit

Short answer: C0274 means “Short in ABS Motor Relay Circuit”. The car’s computer has found a fault in the ABS with BA & EBD system and turns on the ABS warning. First check: ABS motor relay; ABS motor relay circuit.

Code

C0274 · blink 14

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. With IG1 voltage 10V or below during initial check or ABS control, pump motor relay is turned ON, and relay contact is not ON for 0.2 sec. or longer. When pump motor relay is turned OFF, relay contact is ON for 3 sec. or longer.

Likely causes

1. ABS motor relay; ABS motor relay circuit

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

• C0274 · Toyota Vitz (1st gen)
• C0274 on all cars compared

← C0273/13 C0278/11 →

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.