PCM - MIL ON/Code 41 Stored In Extreme Cold
Article No.95-5-9
03/13/95
LAMP - MIL - DIAGNOSTIC TROUBLE CODE (DTC) 41 MAY BE STORED IN MEMORY AT AMBIENT TEMPERATURES BELOW 40 DEGREES F (4 DEGREES C) - VEHICLES WITH 3.0L ENGINE AND CALIBRATION 9-10S-R11 ONLY
FORD:
1990 TAURUS
LINCOLN-MERCURY:
1990 SABLE
CALIBRATION:
9-105-R11
WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.
ISSUE:
The "Check Engine" Malfunction Indicator Lamp (MIL) may illuminate intermittently at ambient temperatures of 40~F (4~C) or below. Service Code 41 may be stored in memory without any noticeable drive symptoms.
ACTION:
Replace the Powertrain Control Module (PCM) with a revised calibration PCM. Refer to the following Service Procedure to determine if a new PCM with a revised operating program is required.
SERVICE PROCEDURE
1. Perform normal diagnostic procedures. Refer to the 1990 Powertrain Control Emissions/Diagnosis (PC/ED) Manual for MIL lamp concerns.
2. If the concern still exists, install a new service PCM with a revised operating strategy. Refer to the Application Chart.
Obtain an Authorized Modifications Decal and list the date, dealer number, and summary of alterations performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.
NOTE:
DEALERS SHOULD REFER TO THE INSTRUCTION SHEET INCLUDED IN THE PACKAGE TO IMMEDIATELY RETURN THE CORE TO FORD ELECTRONICS VIA FEDERAL EXPRESS AWB/SHIPPER ENCLOSED.
FOR VEHICLES REPAIRED UNDER WARRANTY, DEALERS ARE INSTRUCTED TO RETURN THE CORES IMMEDIATELY ONCE THE BLUE FPS-700 TAG IS RECEIVED.
PART NUMBER PART NAME
FOPZ-12A850-ANA Powertrain Control Module (PCM)
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Basic Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
950509A Perform EEC Diagnosis, 0.8 Hr.
Replace PCM, And Repeat
Final Quick Test
DEALER CODING
BASIC PART NO. CONDITION CODE
12A650 08
OASIS CODES: 204000, 204100, 206000, 690000, 698298