B1156 (blink 15) on Toyota Corolla E120: Front Airbag Sensor (RH) Malfunction

Short answer: B1156 means “Front Airbag Sensor (RH) Malfunction”. The car’s computer has found a fault in the SRS system and turns on the SRS airbag warning. First check: workshop check order (RM821E): CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (TO B+) -> CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (TO GROUND) -> CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT(SHORT) -> CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT(OPEN) -> INSPECT AIR BAG FRONT RH SENSOR -> CHECK AIR BAG SENSOR ASSY CENTER -> CHECK ENGINE ROOM MAIN WIRE HARNESS (TO B+) -> CHECK ENGINE ROOM MAIN WIRE HARNESS (TO GROUND) -> CHECK ENGINE ROOM MAIN WIRE HARNESS(SHORT) -> CHECK ENGINE ROOM MAIN WIRE HARNESS(OPEN).

Code

B1156 · blink 15

System

SRS

Dashboard light

SRS airbag warning

Applies to

Cars with airbags (SRS)

Confidence

high (official Toyota RM821E)

Source

toyotamanuals.gitlab.io

Symptoms and when it is set

1. /B1157/15 S Front airbag sensor (RH) malfunction

Likely causes

1. Front airbag sensor (RH); Airbag sensor assembly; Wire harness; Engine room main wire harness

What to check, in order

1. Workshop check order (RM821E): CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (TO B+) -> CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (TO GROUND) -> CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT(SHORT) -> CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT(OPEN) -> INSPECT AIR BAG FRONT RH SENSOR -> CHECK AIR BAG SENSOR ASSY CENTER -> CHECK ENGINE ROOM MAIN WIRE HARNESS (TO B+) -> CHECK ENGINE ROOM MAIN WIRE HARNESS (TO GROUND) -> CHECK ENGINE ROOM MAIN WIRE HARNESS(SHORT) -> CHECK ENGINE ROOM MAIN WIRE HARNESS(OPEN)

Related on this car

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

← B1135/24 B1157/15 →

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.