Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963) Diagnostic Trouble Codes 0703

Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963) Diagnostic Trouble Codes Mercedes-Benz Mercedes Benz OEM Parts Mercedes Benz OE Replacement Parts


0703
B70 (Crankshaft Hall sensor) : Check wiring of signal line and voltage. (P0335)
Possible cause:
- B70 (Crankshaft Hall sensor)
Affected functions:
- Engine diagnosis
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Test 1: Check component B70 (Crankshaft Hall sensor).
1. Check component B70 (Crankshaft Hall sensor).
Test 1.1: Test signal voltage of component B70 (Crankshaft Hall sensor).
Test 1.2: Check power supply of component B70 (Crankshaft Hall sensor).
1.1. Test signal voltage of component B70 (Crankshaft Hall sensor).
Test 1.1.1: The engine does not start.
Test 1.1.2: Engine running
1.1.1. The engine does not start.
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!
Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963)  Diagnostic Trouble Codes  Page 562
- 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
Settings
- Trigger level: 50 %
- Time range: 5 ms
Test sequence
- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Observe oscilloscope pattern between sockets (M.80) 80(A7) and (M.81) 81(A4) of the 126-pole socket box tester.
- Start engine.
Specified value
- Measuring system
Warning!The rising signal edge in the gap (see arrow) may vary.Note
- Measuring system:Communication with ECU required
Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963)  Diagnostic Trouble Codes  Page 563
1.1.2. Engine running
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
Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963)  Diagnostic Trouble Codes  Page 564
Settings
- Trigger level: 50 %
- Time range: 5 ms
Test sequence
- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Observe oscilloscope pattern between sockets (M.80) 80(A7) and (M.81) 81(A4) of the 126-pole socket box tester.
- Operate engine at idling speed.
Specified value
- Measuring system
- Signal (4,7 - 5,3) V
Warning!The rising signal edge in the gap (see arrow) may vary.Note
- Measuring system:Communication with ECU required
1.2. Check power supply of component B70 (Crankshaft Hall sensor).
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
Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963)  Diagnostic Trouble Codes  Page 565
Test sequence
- Measure direct voltage with multimeter between sockets (M.80) 80 and (M.44) 44 of the 126-pole socket box tester.
- Switch on ignition.
Specified value
- Voltage[4.8...5.3] V
Question
- Is the measurement value OK?
YES
The measurement value is OK.Possible cause and remedy
- Signal wire
- B70 (Crankshaft Hall sensor)
End of test
NO
The measurement value is not OK.Possible cause and remedy
- Lines to component B70 (Crankshaft Hall sensor)
End of test