Mechanics

CODE READER TYPE

1994 Ford Explorer

Computer problem
1994 Ford Explorer 6 cyl Four Wheel Drive Automatic 125000 miles

I have a 1994 xlt explorer. I purcased a code reader obd1 #3145, tried to hook it up to discover it is not the correct one. What type do I need for this model. Thank you
Avatar
Kevin Prenger
October 20, 2008.




Hello,

Here are a couple diagrams for retrieving codes...


http://www.2carpros.com/forum/automotive_pictures/188069_obd1connection_1.jpg



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Auto Repair Manual - How to read codes (No Special Tools Needed)

1 Ensure the engine and oxygen sensor is up to operating temperature.
2 Turn the ignition OFF.
3 Connect an LED tester or Voltmeter, (Click here for details) to points labelled A and B on the diagram
4 Use a wire link to connect terminals as shown on the diagram.
5 Start Engine.
6 The fault codes will be shown on the LED tester or Voltmeter connected.
7 Read codes as described in the Code Format Description below.
8 Press the continue button to enter the code numbers and get the code description.
asd

Connector Diagram


http://www.2carpros.com/forum/automotive_pictures/188069_obd1connection2_1.gif



Tips:
Single pin connector is grey in colour.

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Ford KOER diagram above is described as follows
• Engine Running ID Code. Number of reflects cylinders in vehicle. (diagram shows a 6 cylinder vehicle)
2 = 4 Cylinders
3 = 6 Cylinders
4 = 8 Cylinders
5 = 7.3L Diesel
• If the vehicle is equipped with a Brake On/Off (BOO) switch, the brake pedal must be depressed and released after the ID Code is transmitted.

• If the vehicle is equipped with a Power Steering Pressure Switch (PSPS), the steering wheel must be turned atleast 1/2 turn and released within 2 seconds after the engine ID Code is transmitted.

• If the vehicle is equipped with the E4OD transmission, the Overdrive Cancel Switch (OCS) must be sycled after the engine ID Code is transmitted.

• A 6-20 second pause.
• A single flash indicates the Dynamic Test Responce Code. When observed briefly take the engine to wide open throttle.
• A 4-15 second pause. during this time ignore any quick flashs that may occur.
• Fault code 132. (vehicle will either emmitt 2 or 3 digit codes)
• A 4 second pause seperates next Hard Fault Code.

Obxautomedic
Oct 20, 2008.


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