ECU information available
Actuators test: no
Parameter measurements: yes
Characterised by: not specified (short circuit to earth or short circuit to positive or open circuit)
Checks to be carried out if fault is present
Not specified (short circuit to earth or short circuit to positive or open circuit)
| conditions under which the fault appears | checks to be made conditions for checking |
|---|---|
| ignition on (ignition controlled +ve) engine stopped or engine running | check: ignition off, control unit disconnected: - no earth on terminals 14, 30 of connector 35V.NR ignition off, pressure sensor disconnected, ECU and throttle potentiometer disconnected: - resistance R equal to infinity between terminals 14 and 16 of connector 35V.NR - resistance R equal to infinity between terminals 30 and 16 of connector 35V.NR ignition on, ECU connected, throttle potentiometer connected: - does the voltage U vary according to the position of the throttle ? (0.2 V ≤ U ≤ 5 V between terminals 16 and 30 on the control unit) |
Check(s) to be carried out if no fault found
Check the consistency of the signal perceived by the ECU (parameter measurements)
