Getting Started

Ford On-Board Diagnostics

2

System

Long Name

Years

Description

MCU

Microprocessor Control Unit

1980

–1991

Used in police vehicles, containing carbureted

engines. Uses the MCU DLC.

 

 

 

 

EEC-IV

Electronic Engine Control,

1984

–1995

Most Ford vehicles equipped with North

Fourth generation

American engines. Uses the EEC-IV DLC.

MECS

Mazda Electronic Control

1988

–1995

Vehicles equipped with Mazda-sourced engines.

System

Uses MECS 6-pin and 17-pin DLCs.

EEC-V

Electronic Engine Control,

1994* – present

Complies with OBD II regulations and uses the

Fifth generation

OBD II J1962 DLC.

PTEC

Powertrain Electronic

2000

– present

Complies with OBD II regulations and uses the

Controller

OBD II J1962 DLC.

*EEC-V OBD II system used in 1994-1995 vehicles equipped with a 3.8L or 4.6L engine.

Chrysler On-Board Diagnostics

System

Long Name

Years

Description

SMEC

Single Module Engine

1989–1990

Used a 6-pin Serial Communication Interface (SCI)

Controller

DLC and has bidirectional capability.

SBEC

Single Board Engine

 

Used two types of DLCs: a 6-pin SCI and a 6-pin LH

1989*–1995

series.

Controller

 

 

 

The first to allow a tool to reset the EMR light on trucks.

OBD II

OBD II Powertrain

1995**– present

Complies with OBD II regulations and uses the OBD II

PCM

Control Module

 

J1962 DLC.

 

Jeep/Truck Engine

 

Complies with OBD II regulations and uses the OBD II

JTEC

1996– present

J1962 DLC.

Controller

The JTEC system is used on light-duty trucks and

 

 

 

 

 

Jeeps

*In 1989, the SBEC system was installed in selected vehicles with 3.0L V6 engines.

**Some vehicles in 1995 were equipped with the OBD II PCM.

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Image 26
Actron CP9190 manual Ford On-Board Diagnostics