Ford Mondeo Mk1 DESK ECU Pin Out
When doing any engine conversion it is helpful to have a pin out for the ecu that you're using. Our Zetec converted Mk2 Fiesta uses a Mk1 mondeo non-PATS loom and a ECU with code 'DESK', please see the Mondeo ECU code guide for more info on the different codes. This list should apply to any non-PATS 16 valve petrol Mk1 Mondeo and was noted down as we did the conversion but as always we cant guarantee that we didnt make any mistakes, if in doubt consult a qualified auto-electrician.
If you can add to the info displayed please email the webmaster at info@projectbobcat.com
Ford Mondeo ECU connector illustration
Mondeo ECU Pin Out Table
Click here to show/hide the unnecessary wires.
| Pin Number | Function | Colour | Required? |
|---|---|---|---|
| 1 | Battery | Orange/Yellow | YES |
| 2 | Purple | NO | |
| 3 | Vehicle Speed Sensor (VSS) | White/Purple | YES |
| 4 | Rev Counter | White/Black | YES |
| 5 | Purple/White | NO | |
| 6 | Not Used | NO | |
| 7 | Coolant Temp Sensor (ECT) | White/Green | YES |
| 8 | Fuel Pump Relay (Pin 87) | Purple/Black | YES |
| 9 | Air Mass Meter (MAF) | Brown/Blue | YES |
| 10 | Violet/Blue | NO | |
| 11 | Emission Canister Purge | Black/Orange | NO |
| 12 | Not Used | NO | |
| 13 | Engine Coolant Fan Relay | Black/Blue | NO |
| 14 | Pulsed Secondary Air Injection | Black/Blue | NO |
| 15 | Not Used | NO | |
| 16 | Ignition Current Return | Black/Brown | YES |
| 17 | Data Link | Black/Green | NO |
| 18 | Engine Diagnostic Connector | White/Blue | NO |
| 19 | Engine Diagnostic Connector | Brown/Blue | NO |
| 20 | Current Return | Black/Red | YES |
| 21 | Idle Speed Control Valve (ISCV) | Black/Yellow | YES |
| 22 | Fuel Pump Relay (Pin 85) | Black/Blue | YES |
| 23 | Not Used | NO | |
| 24 | Camshaft Position Sesnor | White/Purple | YES |
| 25 | Intake Air Temp Sensor | White/Purple | YES |
| 26 | Throttle Potentiometer (TPS) | Yellow | YES |
| 27 | EGR | White/Blue | NO |
| 28 | Power Steering | White | NO |
| 29 | White/Black | NO | |
| 30 | White/Green | NO | |
| 31 | Engine Coolant Fan Relay | Black/White | NO |
| 32 | Not Used | NO | |
| 33 | EGR | Black | NO |
| 34 | Trip Computer | White | NO |
| 35 | Fuel Injector 4 | Black/Orange | YES |
| 36 | White/Purple | NO | |
| 37 | Power Supply Relay (Pin 87) | Green/Yellow | YES |
| 38 | Black/Red | NO | |
| 39 | Fuel Injector 3 | Black/Blue | YES |
| 40 | Current Return (To Oxygen Eventually!) | Black/Yellow | YES |
| 41 | Self Test Connector | White/Black | NO |
| 42 | Octane Coding Plug | White/Black | YES |
| 43 | Not Used | NO | |
| 44 | HEGO (Lambda Sensor) | White | YES |
| 45 | Not Used | NO | |
| 46 | Oxygen Sensor | Brown | YES |
| 47 | Throttle Potentiometer (TPS) | White | YES |
| 48 | Data Link | White/Green | NO |
| 49 | White/Red | NO | |
| 50 | Air Mass Meter (MAF) | White/Blue | YES |
| 51 | Fuel Injector 1 | Black/White | YES |
| 52 | Fuel Injector 2 | Black/Yellow | YES |
| 53 | Black/White | NO | |
| 54 | Black/Yellow | NO | |
| 55 | Crank Position Sensor | Brown/Red | YES |
| 56 | Crank Position Sensor | White/Red | YES |
| 57 | Power Supply Relay (Pin 87) | Green/Yellow | YES |
| 58 | Ignition Coil 1&4 | Brown/Blue | YES |
| 59 | Ignition Coil 2&3 | Brown/Green | YES |
| 60 | Current Return | Black/Yellow | YES |