Ford Powertrains - Auto Repair Codes

Scan Tool for Codes and Live Data for your Ford Engine from $199 USD

The information below may apply to Ford and many other models

Step 4

Ford EFI Code Reading

Connector Diagram

Tips
• This is a Mazda system.
• The single pin connector is always green, do NOT use the white connector as it is the RPM pick-up from the coil.

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

IMPORTANT:If after you turn the ignition ON no codes are output, then are either NO fault codes OR the vehicle has not been put into diagnostics mode correctly. To test the connection generate a fault code by disconnecting the airflow meter or throttle position sensor, crank or run the engine and re-run the test.

1 Warm the engine and oxygen sensor (if fitted) to operating temperature then switch the engine off.

2 Connect an LED tester or Voltmeter, (Click here for details) to points labelled 'A' & 'B' on the diagram

3 Ground the single pin connector as shown on the diagram.

4 Turn ignition ON.

5 The fault codes will be shown on the LED tester or Voltmeter connected.

6 Read codes as described in the Code Format Description below.

7 Press the continue button to enter the code numbers and get the code description.

Code Format Diagram

Code Format Description

• The code is made up of four groups of flashes each representing a digit.

• A long flash indicates the start of each new group. A long flash by itself indicates a zero digit.

• Short flashes indicate the digit

• An 8 second pause separates each trouble code.

• A shorter pause separates each group of flashes

• Code Format Diagram shows code No. 0231,(On the next screen please enter code No's including any zero digits).

Or...

• Each code is made up of two series of flashes.

• The long flashes indicate the 'tens' digits.

• The short flashes indicate the 'ones' digits.

• A 4 second pause separates each code sequence.

• Code Format Diagram shows code No. 12.

To move to the next screen click on the Continue button

 Continue > 

Note on Example Model(s): Ford
The example model(s) shown, Ford for this auto repair service are only an indication to help you. There may be many other models that apply to this connector. Click above link to see the complete vehicle coverage list.