ECU information available
Actuators test: no
Parameter measurements: yes
Tooth signal test: yes
Characterised by: loss of synchronisation
Checks to be carried out if fault is present
Loss of synchronisation
| conditions under which the fault appears | checks to be made conditions for checking |
|---|---|
| engine running inconsistency of engine speed sensor signal between terminals 30 and 11 of the ECU | check: - check the condition of the toothed wheel and the sensor electrode control unit disconnected, operate the starter: - 3 V ≤ U peak ≤ 14 V between terminals 30 and 11 on the control unit 55 V.NR control unit disconnected, ignition off: - 300 Ω ≤ R ≤ 450 Ω between terminals 30 and 11 on the control unit 55 V.NR - presence of earth at terminal 19 on the 55 V.NR connector |
Check(s) to be carried out if no fault found
Control unit disconnected, operate the starter, check:
- 3V ≤ U peak ≤ 14 V, (between terminals 30 and 11 of the 55V.NR connector)
With the engine speed sensor disconnected, check:
- 300 Ω ≤ R ≤ 450 Ω between terminals 2 and 1 of the engine speed sensor
Presence of earth at terminal 3 on the 3 V.MR connector
Insulation of wire(s) A - B
Check the condition of the toothed wheel and the sensor electrode
