B0045

B0040, B0041, B0045

B0040 Driver side deployment, Resistance low.

B0041 Driver side deployment, open circuit.

B0045 Side deployment circuit, driver, voltage out of range.










Fault symptom
Airbag warning lamp on.

Conditions


Fault criteria
B0040 The resistance measured by the control module falls below 1.5 ± 0.2 ohms for 2 s
B0041 The resistance measured by the control module exceeds 4.5 ± 0.2 ohms for 2 s
B0045 Voltage on pin 27 in the control module exceeds 4.1 ± 0.15 V or falls below 1.0 ± 0.15 V for 2 s.

System reaction to a fault
Even if there is a fault in the ignition circuit, the control module will try to trigger the airbag in the event of a collision.

Diagnostic help
The diagnostic tool can be used to read the amount of resistance in the ignition circuit.

Fault Diagnosis Procedure