Test 1.1.3.2.1: Voltage supply of engine compartment CAN control modules
Test 1.1.3.2.2: Resistance test of engine compartment CAN
1.1.3.2.1. Voltage supply of engine compartment CAN control modules
Test 1.1.3.2.1.1: Check power supply at control unit N3/10 (ME-SFI [ME] control unit).
Test 1.1.3.2.1.2: Check power supply at control unit N15/3 (ETC [EGS] control unit).
Test 1.1.3.2.1.3: Check power supply at control unit N15/5 (Electronic selector lever module control unit).
Test 1.1.3.2.1.4: Check power supply at control unit N15/6 (Sprintshift control module).
Test 1.1.3.2.1.5: Check power supply at control unit N47-5 (ESP, SPS [PML] and BAS control unit).
Test 1.1.3.2.1.6: Check power supply at control unit N51 (AIRmatic with ADS control module).
Test 1.1.3.2.1.7: Check power supply at control unit N63/1 (DTR control module).
Test 1.1.3.2.1.8: Check power supply at control unit N71 (Headlamp range adjustment control module).
Test 1.1.3.2.1.9: Check power supply at control unit N73 (EIS [EZS] control unit).
Test 1.1.3.2.1.10: Check power supply at control unit N80 (Steering column module).
Test 1.1.3.2.1.11: Check power supply at control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit).
Test 1.1.3.2.1.12: Check power supply at control unit A1 (Instrument cluster).
Test 1.1.3.2.1.13: Check power supply at control unit A89 (DTR controller unit).
1.1.3.2.1.1. Check power supply at control unit N3/10 (ME-SFI [ME] control unit).
Test 1.1.3.2.1.1.1: Test voltage supply of circuit 87. ( Check using actual value )
Test 1.1.3.2.1.1.2: Test voltage supply of circuit 30.
Test 1.1.3.2.1.1.3: Test current consumption of component N10/1kR (Circuit 87 relay, engine).
Test 1.1.3.2.1.1.4: Test voltage supply of circuit 15.
1.1.3.2.1.1.1. Test voltage supply of circuit 87. ( Check using actual value )
Test prerequisite
- The voltage test at component G1 (Battery) is o.k.
- Ignition ON
Status of relevant actual value:
- Battery voltage:Warning! Communication with ECU required.
Specified value
- Battery voltage[11.0 ... 15.0] V
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
- Test voltage supply of circuit 30.
- Test voltage supply of circuit 87.
1.1.3.2.1.1.2. Test voltage supply of circuit 30.
Connect socket box to component N3/10 (ME-SFI [ME] control unit).
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