ECU information available
Actuators test: no
Parameter measurements: yes
Checks to be carried out if fault is present
| conditions under which the fault appears | checks to be made conditions for checking |
|---|---|
| starting phase engine running | ignition on, engine management control unit: disconnected, engine speed sensor: connected: - operate the starter, the voltage varies from 4 V to 9 V between terminals 30, 49 on the 55V.NR connector ignition off, engine management control unit: disconnected, engine speed sensor: disconnected: - check continuity of wires A, B, C - check the direction in which the engine speed sensor is connected (reversal of the wires) - check: sensor resistance value(s): 300 Ω ≤ R ≤ 400 Ω - check the condition of the toothed wheel and the sensor electrode |
Check(s) to be carried out if no fault found
Ignition on, engine management control unit: disconnected, engine speed sensor: connected: operate the starter, the voltage varies from 4 V to 9 V between terminals 30, 49 on the 55V.NR connector
Ignition off, engine management control unit: disconnected, engine speed sensor: disconnected
- Check continuity of wires A, B, C
- Check: no earth at terminal(s) 49, 30 on the 55V.NR connector
- Check: sensor resistance value(s): 300 Ω ≤ R ≤ 400 Ω
Ignition on, engine management control unit: disconnected, engine speed sensor: disconnected: check: no voltage at terminal(s) 19, 30, 49 of the control unit
