[1] Check component M16/5 (Throttle valve actuator).: Short circuit to positive

[1] Check component M16/5 (Throttle valve actuator).: Short circuit to positive

Test 1: Check component M16/5 (Throttle valve actuator).

1. Check component M16/5 (Throttle valve actuator).

Test 1.1: Check actual value M16/5 (Throttle valve actuator).

Test 1.2: Power supply Check component M16/5 (Throttle valve actuator).

1.1. Check actual value M16/5 (Throttle valve actuator).
Test prerequisite

- Engine at idle
- Briefly blip throttle.
Status of relevant actual value:
- M16/5 (Throttle valve actuator):Warning! Communication with ECU required.
Specified value

- The on/off ratio rises briefly.
Question

- Is the actual value o.k.?


YES
The actual value is okay.END OF TEST

NO
The actual value is not o.k.Possible cause and remedy

- Check power supply of component M16/5 (Throttle valve actuator).


1.2. Power supply Check component M16/5 (Throttle valve actuator).
Test prerequisite

- The actual value is not o.k.
Figure legend

- B17/8 (Charge air temperature sensor)
- M16/5 (Throttle valve actuator)
Test prerequisite

- Switch off ignition.
- Detach coupling at component M16/5 (Throttle valve actuator).
- Connect adapter cable between M16/5 (Throttle valve actuator) and engine wiring harness.
- Measure direct voltage with multimeter between sockets 3 and 2
- Switch on ignition.
Specified value

- Voltage[11...14V]
Question

- Is the measurement value OK?







YES
The measurement value is OK.Possible cause and remedy

- Test lead to pin 2 for short circuit and open circuit.
- Replace component M16/5 (Throttle valve actuator).
End of test

NO
The measurement value is not OK.Possible cause and remedy

- Test lead to pin 2 for short circuit and open circuit.
- Test lead to pin 3 for short circuit and open circuit.
End of test