1. Check component Y32 (Air pump switchover valve).
Test 1.1: Test actuation of component Y32 (Air pump switchover valve).
Test 1.2: Test current consumption of component Y32 (Air pump switchover valve).
1.1. 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.
1.2. 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
Test prerequisite
- The actuation was not okay.
Test sequence
- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Measure direct current with multimeter between sockets (F.4) 100 and [M.53] 53 of the 126-pole socket box tester.