A/T - Revised Wiring Diagram

9219oldsmobile04

NUMBER:
90-T-110

CORP.REF.NO:
077101R

DATE:
May 1990

SECTION:
7A, 3T40


SUBJECT
SERVICE MANUAL UPDATE - SECTION 3T40
TRANSAXLE DIAGNOSIS - REVISED WIRING DIAGRAM INFORMATION

MODELS/YEARS
1990 CUTLASS CALAIS, CUTLASS CIERA, CUTLASS
SUPREME, SILHOUETTE EQUIPPED WITH HYDRA
MATIC 3T40 (THM 125C) TRANSAXLES (RPO - MD9)











BULLETIN COVERS:

Revised Wiring Diagram Information and eight 1990 HYDRA-MATIC 3T40 models added after the printing of the 1990 Service Manuals. See Figures 1 through 6.

Currently some of the 1990 Service Manual 3T40 transaxle wiring diagrams reference terminal path D "TO EGR SOL". This has been changed to "TO ECM" whenever referenced in the wiring diagrams.

Models added are: HCC, HPC, HXC, HSC, HTC, HWC, KKC, LKC.

Refer to this bulletin whenever service to any 1990 3T40 transaxle wiring assembly is necessary. All other instructions and procedures are the same as published in the 1990 3T40 Automatic Transaxle Diagnosis Section of your service manual.