ECU information available
Actuators test: no
Parameter measurements: no
Characterised by
- Frequency too high
- Short circuit to earth
- Short circuit to positive
- Engine speed sensor consistency (on starting)
- Engine speed sensor consistency (dynamically)
- Consistency when stopped
Checks to be carried out if fault is present
Frequency too high
| conditions under which the fault appears | checks conditions for checking |
|---|---|
| interference on camshaft signal | check: - insulation and continuity, wire B |
Short circuit to earth
Refer to the procedure: check, sensor supply function (accelerator pedal sensor, inlet pressure sensor, fuel pressure sensor, cylinder reference sensor) short circuited to earth
Short circuit to positive
Refer to the procedure: check, engine speed function (maximum engine speed exceeded)
Engine speed sensor consistency (on starting)
| conditions under which the fault appears | checks conditions for checking |
|---|---|
| no camshaft signal on terminal 18 of connector 88V.NR (injection ECU 1320) | control unit disconnected, ignition off, check: - the continuity and insulation of wire(s) B |
