Wrangler L4-150 2.5L VIN P MFI (1993)
Electronic Brake Control Module: Recalls
Campaign - ABS Brake Controller
No. 598
November, 1993
To: All Jeep(R) & Eagle Dealers
Subject:
Customer Satisfaction Notification # 598 -- ABS Brake Controller
Models:
1993 and 1994 Model Year Jeep Wrangler (YJ) Vehicles Equipped With Anti-lock Brakes (ABS) Built Through August 17, 1993
Repeated voltage spikes (generated by turning the ignition switch off when the A/C and/or heater blower switch is in the low position), gradually cause
the ABS controller to short circuit and blow the ABS lamp relay fuse. This results in illumination of the yellow ABS lamp and disabling the ABS system.
To correct this condition, a jumper harness containing a diode must be installed in the blower motor wiring harness.
Details of this service action are explained in the following sections.
Service Procedure Videotape
No videotape of the service procedure for this notification will be provided.
Dealer Notification & Vehicle List
Involved dealers: Each dealer to whom involved vehicles were invoiced (or the current dealer at the same street address) will receive a copy of this
dealer notification letter and a list of the involved vehicles by first class mail.
The Vehicle List is arranged in Vehicle Identification Number (VIN) sequence. Owners known to Chrysler are also listed. The lists are for dealer
reference in arranging for service of involved vehicles.
All other dealers: Each Jeep & Eagle dealer who does not receive a Vehicle List will receive a copy of this dealer notification letter by first class mail.
DIAL System Function 70
All involved vehicles will be entered to DIAL System Function 70 at the time of notification implementation for dealer inquiry by VIN as needed.
Parts
Important:
A quantity of parts will be distributed initially and billed to all involved dealers. This quantity will cover a portion of the total vehicles involved.
Additional parts may be ordered as needed to support customer demand.
Each involved dealer, to whom vehicles in the notification were invoiced (or the current dealer at the same street address), will receive enough Jumper
Harness Packages, PN C3905980, to service 25% of those vehicles.
Each parts package contains the following components:
Quantity
Description
1
Jumper Harness
1
Instruction Sheet
Owner Notification and Service Scheduling
All involved vehicle owners known to Chrysler are being notified of the service requirement by first class mail. They are requested to schedule
appointments for the service with their dealers at the earliest possible date. A copy of the owner notification letter is included.
Enclosed with each owner notification is an Owner Notification Form. The involved vehicle and notification are identified on the form for owner or
dealer reference as needed.
Service Procedure
A.
Install Jumper Harness (Vehicles Equipped with Air Conditioning):