A/T - Revised Wiring Diagram Artwork
90pontiac12Bulletin Number: 90-7-23A
Reference Number: 077101R
Publish Date: 3/90
Subject: SERVICE MANUAL UPDATESECTION 7A - 3T40 TRANSAXLE UNIT REPAIR - REVISED WIRING DIAGRAM INFO.
Models
Affected: 1990 6000, SUNBIRD, GRAND AM, LEMANS AND GRAND PRIX
This bulletin cancels and replaces bulletin 90-7-23 issued 1/90 which should be discarded.
The artwork for this bulletin has been revised. The models from figure 4 have been incorporated into figure 5; figures 5 - 7 have been renumbered figures 4 - 6. Also, "Figures 1 thru 7" under "BULLETIN COVERS" has been changed to "Figures 1 thru 6".
Figure 1 - Wiring Diagram:
Figure 2 - Wiring Diagram:
Figure 3 - Wiring Diagram:
Figure 4 - Wiring Diagram:
Figure 5 - Wiring Diagram:
Figure 6 - Wiring Diagram:
BULLETIN COVERS: (Figures 1 thru 6)
Revised Wiring Diagram Information and eight 1990 HYDRA-MATIC 3T40 models added after the printing of the 1990 Service Manuals.
Currently some of the 1990 Service Manual wiring diagrams reference terminal path D "TO EGR SOL". This has been changed to "TO ECM" whenever referenced in the wiring diagrams. EGR SOL means "Energize Solenoid", not "Exhaust Gas Recirculation Solenoid".
Models added are: HCC, HPC, HXC, HSC, HTC, HWC, KKC, LKC.
Refer to this bulletin whenever service to any 1990 wiring assembly is necessary. All other instructions and procedures are the same as published in the 1990 7A Section of your service manual.