C1241 (blink 41) on Toyota Corolla E120: IG Power Source Circuit

Short answer: C1241 means “IG Power Source Circuit”. 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): INSPECT FUSES (ECU−IG FUSE) -> INSPECT BATTERY -> INSPECT SKID CONTROL ECU CONNECTOR (IG1 TERMINAL VOLTAGE) -> INSPECT SKID CONTROL ECU CONNECTOR (GND TERMINAL CONTINUITY).

Code

C1241 · blink 41

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 1. through 3. : 1. With vehicle speed at 3 km/h or more, IG1 terminal volt- age is 10V or below for 10 sec. or longer. 2. With IG1 terminal voltage at 10V or below, solenoid relay open, pump motor relay open, solenoid fault detecting condition are established 3. Voltage of ECU terminal IG1 remains at more than 17V continues for 1.2 sec. or more.

Likely causes

1. Battery; Charging system; Power source circuit; Skid Control ECU

What to check, in order

1. Workshop check order (RM821E): INSPECT FUSES (ECU−IG FUSE) -> INSPECT BATTERY -> INSPECT SKID CONTROL ECU CONNECTOR (IG1 TERMINAL VOLTAGE) -> INSPECT SKID CONTROL ECU CONNECTOR (GND TERMINAL CONTINUITY)

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

• C1241 · Toyota Passo (1st gen)
• C1241 · Toyota Vitz (1st gen)
• C1241 on all cars compared

← C1239/39 C1246/46 →

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.