A/T - Diagnosis Manual Update

9220pontiac02

Bulletin Number: 92-7-13
Reference Number: 277119
Publish Date: 4/92



Subject:
SERVICE MANUAL UPDATE - SECTION 7A
AUTOMATIC TRANSAXLE DIAGNOSIS

Models Affected:
1992 BONNEVILLE, AND TRANS SPORT
MODELS WITH 3800 ENGINE



TRANSAXLE APPLICATIONS:
IIYDRA-MATIC 4T60-E (Ml3)

TRANSAXLE MODELS:
2BTW,2CXW,2CZW,2CLW,2YMW, 2YLW,2CSW,2YZW,2WAW,2BYW, 2CTW,2PHW,2YPW

CORRECTION:
(For Bonneville and Trans Sport models with 3800 Engines only)

The 1992 "Automatic Transaxle Diagnosis" section for the 3800 used in the Bonneville and Trans Sport models should include both RPO L27 and RPO L67 in the section title:

Section/HYDRA-MATIC 4T60-E
(w/3800 TPI,MPI L27 and L67 SCI Engines) AUTOMATIC TRANSAXLE DIAGNOSIS

Please replace the following figures from your 1992 Automatic Transaxle Diagnosis section with the following revised figures:

(Figures 1 through 7)





1992 AUTOMATIC TRANSAXLE DIAGNOSIS UPDATE





Failsafe Actions and PCM Inputs








Failsafe Actions and Solenoid Operations














Hydraulic, Mechanical, and Electrical Diagnosis Chart