Cherokee 4WD L6-242 4.0L VIN S MFI (1992)
Electronic Brake Control Module: All Technical Service Bulletins
ABS - Warning Lamp ON, Pump Circuit Fault
NO: 05-08-94
GROUP: Brakes
DATE: Apr. 22, 1994
SUBJECT:
ABS Pump Motor Circuit Fault
MODELS:
1992 - 1994 (XJ) Cherokee
1993 - 1994 (YJ) Wrangler
1993 - 1994 (ZJ) Grand Cherokee/Grand Wagoneer
SYMPTOM/CONDITION:
The ABS light in the instrument panel comes on indicating a pump motor circuit fault. This is most likely to occur at temperatures above 90~F (32~C),
after the vehicle has been turned off for a short period of time such as stopping to refuel. The light will come on after the vehicle is driven at speeds over
eight miles per hour (during the system self check).
DIAGNOSIS:
Perform all the checks in the appropriate ABS Diagnostic Manual for the pump motor circuit fault. If no system problems are found and the manual leads
to the replacement of the ABS module, perform the repair procedure.
PARTS REQUIRED:
1
56027560
ABS Module
REPAIR PROCEDURE:
This bulletin involves replacing the ABS module with a module containing revised pump motor circuit logic.
Using the procedures outlined in the appropriate Service Manual, replace the ABS module with P/N 56027560.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No.
08-19-10-92
1992-1994 (XJ) Cherokee
0.5 Hrs.
1993-1994 (ZJ) Grand Cherokee/Grand Wagoneer
0.5 Hrs.
1993-1994 (YJ) Wrangler
0.3 Hrs.
FAILURE CODE: P8 - New Part
