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

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

Z1-Z3:

Z3-Z5:

Z6:

Lamp Fault Codes (LFCs)







The lamp fault code (LFC) indicate the specific fault associated with diagnostic trouble code (DTC) B2986:

Normal Operation
As part of the SRS, the vehicle is equipped with 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 DTC B2986 in memory and flash LFC 12-9 on 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.