Test U: DTC B2986 - Deployable Steering Column Circuit Short to Ground

PINPOINT TEST U: DTC B2986 - DEPLOYABLE STEERING COLUMN CIRCUIT SHORT TO GROUND

U1-U3:

U3-U5:

U6:

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 detects a short to ground on either circuit, it will store diagnostic trouble code (DTC) B2986 in memory and illuminate the air bag indicator.

Possible Causes
A deployable steering column short to ground circuit fault can be caused by:
- wiring, terminals or connectors.
- a faulty deployable steering column.
- a faulted RCM.