Engine Controls - Revised Code 39, TCC

9226buick04

Bulletin: 89-6E-29

Date: June '90

Ref. No.: 89-287-6E

Corp. Ref. No.: 016518R


SUBJECT:
SERVICE MANUAL UPDATE - SECTION 6E3
DRIVEABILITY AND EMISSIONS - REVISED CODE 39
DIAGNOSTIC CHART

MODELS AFFECTED:
1989 CENTURY WITH 3300 (VIN N)





This bulletin replaces the Code 39 diagnostic chart on page 6E3-A-59 in Section 6E3 "Driveability and Emissions" for the 1989 Century with 3300 (VIN N) and 4T60 (440T4) transaxle.

The QDM state displayed on a "Scan" tool is inaccurate unless the engine is running.