ECU information available
Actuator test: no OK
Measure parameters: yes
Characterised by
- Short circuit to positive
- Open circuit or short circuit to earth
Checks to be carried out if fault is present
Short circuit to positive
| conditions under which the fault appears | checks to be made conditions for checking |
|---|---|
| engine running voltage measured between terminals 23 and 53 of the engine control unit greater than 5 V | ignition on, engine ECU: connected, throttle position sensor: connected: - check the presence of 5 V: between terminals 16 and 53 on the control unit - does the voltage U vary according to the position of the throttle ? (0.4 ≤ U ≤ 4.5 volts between ECU terminals 23 and 53) |
Open circuit or short circuit to earth
| conditions under which the fault appears | checks to be made conditions for checking |
|---|---|
| engine running voltage measured between terminals 23 and 53 of the engine control unit equal to 0 V | ignition off, engine ECU: disconnected, throttle position sensor: disconnected: - check continuity and insulating of wires A, B, C ignition on, engine ECU: connected, throttle position sensor: connected: - check the presence of 5 V: between terminals 16 and 53 on the control unit - does the voltage U vary according to the position of the throttle ? (0.4 ≤ U ≤ 4.5 volts between ECU terminals 23 and 53) |
Check(s) to be carried out if no fault found
Ignition off, engine ECU: disconnected, throttle position sensor: disconnected: check continuity and insulating of wires A, B
Ignition on, engine ECU: connected, throttle position sensor: connected: does the voltage U vary according to the position of the throttle ? (0.4 ≤ U ≤4.5 volts between ECU terminals 23 and 53)
