Emission Maintenance Warning Module - Information (89-22-8)

WARNING: This page is about the Bronco II 4WD, Automatic, which is a different variant/trim than selected.

Publication date: 1989-11-01
Reference number: 89-22-8

EMISSION MAINTENANCE WARNING MODULE - INFORMATION

TECHNICAL SERVICE BULLETIN

Reference Number(s): 89-22-8, Date of Issue: November 1, 1989

CONDITIONS

EMISSION MAINTENANCE WARNING MODULE - SERVICE INFORMATION;

LAMP - "EMISSIONS/CHECK ENGINE" - EMISSION MAINTENANCE WARNING MODULE - SERVICE INFORMATION

APPLICATION

Model(s): Ford Light Truck: 1985-89 Bronco

1985-87 Bronco II

1985-89 Econoline, F-150, F-250, F-350

1985-88 Ranger

1986-87 Aerostar

Medium/Heavy Truck: 1988-90 F & B Series

Bulletin No.: 89-22-8

Date: November 1, 1989

ISSUE

The Emission Maintenance Warning "EMW" module operates a light that is located on the instrument panel. For 1985-87 model year vehicles, the light will display the word "EMISSIONS" For 1988-89 model year vehicles, the light will display the words "CHECK ENGINE". When the light is lit, it is indicating that the 60,000 mile emission maintenance should be performed. After the maintenance is performed the EMW module must be reset to zero time. Another type of module is the "IMS" module. This module is not part of the light circuit and does not require maintenance. At a predetermined time, the IMS module directs the EEC IV processor to make a strategy change. A third type of module is the "COMBO" module. This module combines the functions of the IMS and the EMW modules.

ACTION

Refer to the following module application "I" charts for the specific vehicle application and location of the different types of modules.

NOTE: For applications not listed in the following MODULE APPLICATION CHARTS, the "check engine" light is controlled by the EEC IV processor. These vehicles do not use the "EMW" module.

1985 & 1986 MODULE APPLICATION CHART

Application	Engine	Module Type	Module Location	Service Part Number
Aerostar	All	EMW	Left Of SteeringColumn on EEC IVBracket	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)
Ranger, Bronco II,	All	EMW	Behind The GloveBox	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)
Econoline, Bronco, F-Series	All	EMW	Bottom Of IP Left Of SteeringColumn	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)

1987 MODULE APPLICATION CHART

Application	Engine	Module Type	Module Location	Service Part Number
Aerostar	All	EMW	EEC IV Bracket	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)
Ranger, Bronco II,	All	EMW	Behind The GloveBox	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)
Econoline, Bronco, F-Series	All	COMBO	Bottom Of IP Left Of SteeringColumn	E7TZ-12B514-A

1988 MODULE APPLICATION CHART

Application	Engine	Module Type	Module Location	Service Part Number
Ranger	2.0L	EMW	Behind the GloveBox	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)
F & B Series	6.1L & 7.0L	EMW	Mounted in the IP	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)
Econoline, Bronco, F-Series	5.8L	COMBO	Bottom Of IP Left Of SteeringColumn	E7TZ-12B514-A

1989 MODULE APPLICATION CHART

Application	Engine	Module Type	Module Location	Service Part Number
F & B Series	6.1L & 7.0L	EMW	Mounted in the IP	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)
Econoline, Bronco, F-Series	5.8L	COMBO	Bottom Of IP Left Of SteeringColumn	E5TZ-12B514-A

1990 MODULE APPLICATION CHART

Application	Engine	Module Type	Module Location	Service Part Number
F & B Series	6.1L & 7.0L	EMW	Mounted in the IP	E5TZ-12B514-C(1000 Hr) or E5TZ-12B514-A(2000 Hr)

PARTS INFORMATION

Part Number	Part Name	Class
E5TZ-12B514-C	EMW Module - 1000 Hr	BM
E5TZ-12B514-A	EMW Module - 2000 Hr	AM
E7TZ-12B514-A	COMBO Module	BM

WARRANTY INFORMATION

WARRANTY STATUS: Information Only.

OASIS CODES: 2300, 2500