Fault codes
Fault codes for Magneti Marelli FD Monopoint G5 and G6 injection
205 SI, XU5 1.6 litre engine1
| Code | Description |
|---|---|
| 11 | End test |
| 12 | Start test |
| 13 | Inlet air thermistor |
| 14 | Coolant thermistor |
| 21 | Throttle potentiometer |
| 22 | Idling regulation stepper motor control |
| 31 | Mixture regulation auto-adaptation |
| 33 | Inlet manifold pressure sensor |
| 41 | Engine speed sensor |
| 42 | Injectors control |
| 45 | Coil 1 control function |
| 52 | Mixture regulation |
| 53 | Battery voltage |
| 54 | Ignition injection Control Unit |
| 57 | Coil 2 control |
Reading fault codes
There is a green 2 pin connector in the engine bay, on the drivers side near the bulkhead.
Run a wire from one pin of this connector into the cabin.
With the ignition on (engine not running) hold the other end or the wire against the key/ignition barrel for between 3-5 seconds to ground it out.
The engine warning light should go out, then pulse once with a 1.5 second gap then pulse twice with a 1 second gap. 1 pulse + 2 pulses equals 12 - start test
Ground the cable again, and the engine light will show another sequence
Continue this process until the count is 11 - end test 2