Description

Pinpoint Test Diagram:

DESCRIPTION
The RABS warning light should automatically begin a flash-out sequence if the diagnostic connector is shorted to ground for at least one second. This flashout sequence can be observed by watching the REAR ABS light. There are a few conditions which will prevent the flashout from occurring. These must be resolved before continuing the RABS repair process.

Possible Contributing Base Brake Component/Vehicle Wiring Concerns
- Burned-out brake taillights
- Missing RABS power (Circuit 601 [LB/PK]) and associated fuse
- Shorted RABS light circuit (Circuit 603 [DG])
- Incorrect anti-lock electronic control module

CAUTION: Do not install a rabs I anti-lock electronic control module in a rabs II system.

NOTE: Use Rotunda(r) 73 Digital Multimeter 105-00051 or equivalent for electrical tests.