Test V: DTC B2987 - Deployable Steering Column Circuit Resistance Low On Squib

PINPOINT TEST V: DTC B2987 - DEPLOYABLE STEERING COLUMN CIRCUIT RESISTANCE LOW ON SQUIB

V1-V3:

V3-V5:

V6-V7:

Normal Operation
As part of the SRS, the vehicle is equipped a deployable steering column. The restraints control module (RCM) will deploy (collapse) the steering column during a frontal collision when seat position information and other parameters reach predetermined limits.

The RCM checks the deployable steering column circuits for faults. If the RCM detect low resistance on either circuit, it will store diagnostic trouble code (DTC) B2987 in memory and illuminate the air bag indicator.

Possible Causes
A deployable steering column low resistance on squib range fault can be caused by:
- wiring, terminals or connectors.
- a faulted deployable steering column.
- a faulted RCM.