- X63/4 (CAN databus adapter connector, 2-pin)
- Test connectors and wiring for CAN of engine compartment CAN control modules.
- Control unit
Communication with ECU required ( Measuring system )
EC40100
Implausible data was received from the engine control unit.
Test 1: Check the CAN communication with control unit Engine control module.
Test 2: Possible cause:
- Drive train CAN bus
Affected functions:
- Engine diagnosis
- Fuel system
1. Check the CAN communication with control unit Engine control module.
Important note
A CAN timeout fault code is set due to the absence of a CAN input signal.The cause of this may be not only the transmitter control unit, but also the
CAN networking.Possible cause and remedy
- Check CAN communication with affected control unit.
- Check other control units for vehicle CAN bus failure in the stored faults.
- CAN bus has loose contact or Open circuit.
Continue with button F 2
Warning!Communication with ECU required.
2. No further information available.
EC42700
Implausible data was received from the electronic ignition switch.
Test 1: Test control signal for component Fuel pump.
Test 2: Possible cause:
- Cable fault
Affected functions:
- Engine diagnosis
- Fuel system
1. Test control signal for component Fuel pump.
Test 1.1: Measure resistance at component 'Fuel pump'.
Test 1.2: Terminal 15 Test control signal for component N118 (Fuel pump control module).
1.1. Measure resistance at component 'Fuel pump'.
Test sequence
- Switch off ignition.
- Disconnect 8-pin plug from component N118 (Fuel pump control module).
- Connect socket box to component N3/10 (ME-SFI [ME] control unit).
- Disconnect the socket F(2) at control module N3/10 (ME-SFI [ME] control unit).
- Test cable for open circuit.
- Measure resistance with multimeter between socket N118.2.2 and socket [F17] 113 of the 126-pole socket box tester.
- Specified value for line resistances:< 1ohms
Is the measurement value OK?
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