Cam Sensor Circuit - Revised Code 41

9223buick04

Bulletin:
91-6E-14

Date:
March, '91

Ref. No.:
91-135-6E

Corp. Ref. No.:
016546


SUBJECT:
SERVICE MANUAL UPDATE - SECTION 6E3 - DRIVEABILITY AND EMISSIONS
REVISED CODE 41 CHART, FACING PAGE

MODELS AFFECTED:
1988-90 PARK AVENUES
1988-91 LESABRES








This bulletin updates the Code 41 Diagnostic Chart and Facing Page in "Driveability And Emissions" Section 6E3 for 3800 (VIN C) equipped 1988-1991 LeSabre and 1988-1990 Park Avenue models.

The revised chart addresses the possibility of a faulty ignition module causing Code 41 to be set by not supplying the CAM sensor signal to the ECM.