- Measure direct current with multimeter between sockets [F.98] 2 and [F.19] 115 of the 126-pole socket box tester.
Specified value
- Voltage[11.0...15.0] V
Question
- Is the measurement value OK?
YES
The measurement value is OK.Further possible causes of fault
- M33 (electric air pump)
End of test
NO
The measurement value is not OK.Possible cause and remedy
- Voltage supply of component N10/1kR (Air pump or oil cooler fan relay)
- N10/1kR (Air pump or oil cooler fan relay)
- Lines to component M33 (electric air pump)
- M33 (electric air pump)
End of test
NO
The measurement value is not OK.Possible cause and remedy
- Lines to component N10/1kR (Air pump or oil cooler fan relay)
- N10/1kR (Air pump or oil cooler fan relay)
End of test
3. Check component Y32 (Air pump switchover valve).
Test 3.1: Test actuation of component Y32 (Air pump switchover valve).
Test 3.2: Test current consumption of component Y32 (Air pump switchover valve).
3.1. Test actuation of component Y32 (Air pump switchover valve).
Test sequence
- Switch on ignition.
- Actuate component Y32 (Air pump switchover valve).(Proceed to 'Actuation' with F2)
Warning!Communication with ECU required.
3.2. Test current consumption of component Y32 (Air pump switchover valve).
Figure legend
- A -ConnectionTest cable 35-pin socket box
- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)
- 05 -35-pin socket box
- 050 -126-pin socket box
- 108 -Test cable 266 589 01 63 00
- N3/10 (ME-SFI [ME] control unit)
- II 1-63ConnectionTest cable
- III 64-126ConnectionTest cable
Warning!
- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).
Continue to test with button F2
