Description

The RABS II 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 repair process.

POSSIBLE CONTRIBUTING BASE BRAKE COMPONENT/VEHICLE WIRING CONCERNS
- Burned-out brake tail lights
- Missing RABS II power (Circuit 601 [LB/PK] and associated fuse)
- Shorted RABS II light circuit (Circuit 603 [DG])
- Incorrect module type (RABS I vs. RABS II)


TEST NOTES, DETERMINING RABS MODULE
A RABS I system which has previously been serviced may have its control module upgraded to a RABS II. In the event that you are uncertain whether you have a RABS I or RABS II control module, check the module part number to be certain of the type of system you have.

Part number F3TF-2C018- RABS II Module

Part number F3UF-2C018- RABS II Module

All other part numbers are RABS I Module

CAUTION: RABS I vehicles which have been upgraded with RABS II modules will NOT have Keep Alive Memory and therefore will not be able to store codes when the vehicle is turned off.