C1544 (blink 44) on Toyota Passo (KGC10): EPS: engine revolution (REV) signal missing/open/short (note ~2)

Short answer: C1544 means “EPS: engine revolution (REV) signal missing/open/short (note ~2)”. The car’s computer has found a fault in the EPS system and turns on the Power steering (EPS) warning light. First check: follow manual.

Code

C1544 · blink 44

System

EPS

Dashboard light

Power steering (EPS) warning light

Also sold as

Daihatsu Boon, Daihatsu Sirion (M300)

Applies to

M300/M301 export

Confidence

high (factory chart)

Source

carmanualsclub.com

Symptoms and when it is set

1. Warning lamp per chart

Likely causes

1. EPS: engine revolution (REV) signal missing/open/short (note ~2)

What to check, in order

1. Follow manual

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

• C1544 · Toyota Corolla (9th gen, E120)
• C1544 on all cars compared

← C1541/41 C1555/55 →

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.