1.3.2.1.2. Check power supply at control unit ESP.
Test 1.3.2.1.2.1: Test voltage of terminal 87 at control unit N47-5 (ESP, SPS [PML] and BAS control unit).
Test 1.3.2.1.2.2: Test of cable for voltage supply
Test 1.3.2.1.2.3: Test procedure ground cable
1.3.2.1.2.1. Test voltage of terminal 87 at control unit N47-5 (ESP, SPS [PML] and BAS control unit).
1.3.2.1.2.1. No further information available.
1.3.2.1.2.2. Test of cable for voltage supply
Test prerequisite
- Battery voltage is OK.
Test sequence
- Switch off ignition.
- Connect socket box.
- Switch on ignition.
- Measure direct voltage with multimeter between ground and socket (1.14) 14 of the 126-pole socket box tester.
Specified value
- Voltage[11.0...14.5] V
Question
- Is the measurement value OK?
YES
The measurement value is OK.Note
- Select further tests.
NO
The measurement value is not OK.Possible cause and remedy
- Lines
- F1f34 (Fuse 34)
End of test
1.3.2.1.2.3. Test procedure ground cable
Test prerequisite
- Battery voltage is OK.
Test sequence
- Switch off ignition.
- Connect socket box.
- W16/Measure resistance with multimeter between 3 and (2.23) 57 of the 35-pole socket box tester.
