PCM - MIL ON, O/D Light Flashing, DTC's Set

Article No.
95-7-13

04/10/95

^ MIL LIGHT ILLUMINATION - O/D LIGHT FLASHING - VEHICLES BUILT BEFORE 8/5/94 WITH EEC-V (OBD-II) SYSTEMS

^ O/D LIGHT FLASHING - VEHICLES WITH 3.8L ENGINE BUILT BEFORE 8/5/94 WITH EEC-V (OBD-II) SYSTEMS

LIGHT TRUCK:
1995 WINDSTAR

CALIBRATION:
4-625-R10, 4-62J-R10

ISSUE:
A stack up of production tolerances, in combination with sensitivity of EEC-V (OBD-II) calibrations, may result in MIL light illumination and/or the O/D light flashing. When this occurs, the following DTC codes may appear:

^ ENGINE CODES

^ 1403 (DPFE) hoses reversed

^ 1406 Downstream hose off or plugged

^ 1473 Fan secondary high with fan(s) off

^ 1479 High fan control primary circuit malfunction

^ 1480 Fan secondary low with low fan on

^ 1481 Fan secondary low with high fan on

^ 1505 IAC airflow exceeds specifications

^ TRANSAXLE CODES

^ P0731 1-2 shift concern

^ P0732 2-3 shift concern

^ P0733 3-4 shift concern

ACTION:
Use the following Service Procedure to determine if the EEC-V PCM requires replacement or reprogramming with a revised calibration.

SERVICE PROCEDURE





1. Perform the EEC-V Self Test. If any of the listed codes appear, reprogram the PCM by following the SBDS instructions. Use SBDS reprogramming tool, June 94" CD-ROM or later. If SBDS is not available, replace the PCM with a new service PCM. Refer to the PCM Application Chart.

2. Test drive the vehicle and perform the EEC-V Self Test. Confirm that there are no DTC codes. If any codes appear, refer to the 1995 Powertrain Control/Emissions Diagnosis (OBD-II) Service Manual. Service as required.





Obtain an Authorized Modifications Decal and list the date, dealer number, and summary of modifications 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.

PART NUMBER PART NAME

F4PZ-12A650-JA Powertrain Control Module (PCM)

F4PZ-12A650-GA Powertrain Control Module (PCM)

OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage And Emissions Warranty Coverage

OPERATION DESCRIPTION TIME

950713A Perform Service As 1.0 Hr.
Outlined Using SBDS
(Includes Road Test)
950713B Perform Service As 1.4 Hrs.
Outlined Without Using
SBDS (Includes Road Test)

DEALER CODING

BASIC PART NO. CONDITION CODE
12A650 08

OASIS CODES: 206000, 698298