1.5. Test voltage supply of the potentiometers of component M16/6 (Throttle valve actuator).
Test prerequisite
- At least one of the relevant actual values is not okay.
- The power supply of component N3/10 (ME-SFI [ME] control unit) is OK.
Test sequence
- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Measure direct voltage with multimeter between sockets (M.39) 39 and (M.43) 43 of the 35-pole socket box tester.
- Switch on ignition.
Specified value
- Voltage[4.75...5.25] V
Question
- Is the measurement value OK?
YES
The measurement value is OK.Possible cause and remedy
- Check lines from component M16/6 (Throttle valve actuator) to component N3/10 (ME-SFI [ME] control unit).
End of test
NO
The measurement value is not OK.Possible cause and remedy
- N3/10 (ME-SFI [ME] control unit)
End of test
2. Check air filter and intake tract for blockage.
Possible cause of fault
- Intake system clogged
Possible remedy
- Check entire air intake system for unmetered air.
End of test
2193
Open circuit in right oxygen sensor upstream of TWC [KAT] (lambda control was switched off). (P2A00)
Possible cause:
- G3/4 (Right O2 sensor, before TWC [KAT])
Affected functions:
- Engine diagnosis
- Exhaust system
-------------------------------------------------
Test 1: Check component G3/4 (Right O2 sensor, before TWC [KAT]).
1. Check component G3/4 (Right O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.
2197
Open circuit in left oxygen sensor upstream of TWC [KAT] (lambda control was switched off). (P2A03)
