DeVille Concours V8-4.6L VIN Y (1995)
PROM - Programmable Read Only Memory: Customer Interest
PCM - DTC P039 Sets on Upgrade
File In Section: 6E - Engine Fuel & Emission
Bulletin No.: 87-65-17
Date: June, 1998
Subject:
DTC P039 Set when Driving Up Slight Grade After Cold Start
(Diagnose/Install New PCM)
Models:
1993-95 Cadillac Eldorado, Seville
1994-95 Cadillac Concours, DeVille
with 4.6L Engine (VIN Y - RPO LD8)
Condition
DTC code P039, torque converter clutch engagement, may set when driving up a slight grade after a cold start.
Correction
A PCM calibration enhancement has been released for the above listed vehicles. If a vehicle is encountered with this condition, and all of the diagnostic
procedures listed in the Service Manual have been performed, with no resulting correction, then update the vehicle with the applicable calibration listed.
Parts Information
Part Number
Description
16266755
1993 PCM Prom
16266762
1994 PCM Prom
16266767
1995 PCM Prom
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
J6364
Prom, PCM -
Use published labor
Replace
operation time
