C 2500 Truck 2WD V8-454 7.4L (1988)
Electronic Brake Control Module: All Technical Service Bulletins
Brakes - Broken RWAL ECU Locking Tab
Number:
REISSUE 89-79-5
Section:
5
Date:
MARCH, 1989
Subject: BROKEN RWAL ECU LOCKING TAB
Model and Year:
1988-89 C/K TRUCK 1989 S/T TRUCK AND M-VAN
Figure 1
TO:
ALL CHEVROLET DEALERS
Chevrolet Dealer Service Bulletin 89-79-5 dated February, 1989, is being reissued to correct the part number. All copies of 89-79-5 should be discarded.
Some vehicles may experience a condition where the rear wheel anti-lock (RWAL) ECU module locking tabs may break when the tab is bent back to
remove the ECU module. In the past, this condition would then require the replacement of the ECU module.
To eliminate this costly component replacement, an ECU module locking tab service clip has been developed. Installation of this clip is shown in Figure
1.
Parts Information
Part Number
Description
15618258
Clip