Operation CHARM: Car repair manuals for everyone.

Part 4


The left fuel level sensor has an electrical fault.


1.1.5.6.3. Actual values via CAN ( Interior CAN bus )
Note

- The actual values shown on the following screens are only displayed and updated as long as the CAN bus is active.
Continue with button F2

Test 1.1.5.6.3.1: Function-specific actual values :

Test 1.1.5.6.3.2: Status of terminals

Test 1.1.5.6.3.3: Kilometer reading / Key ID

Test 1.1.5.6.3.4: Fuel tank level

Test 1.1.5.6.3.5: Turn signal indicators/hazard warning flashers

Test 1.1.5.6.3.6: Central locking

Test 1.1.5.6.3.7: Light sensor

Test 1.1.5.6.3.8: Rain sensor

Test 1.1.5.6.3.9: Lighting

Test 1.1.5.6.3.10: Coding of vehicle variant

Test 1.1.5.6.3.11: Coding of vehicle equipment

Test 1.1.5.6.3.12: Mirror

Test 1.1.5.6.3.13: Driver door power window

1.1.5.6.3.1. Function-specific actual values :

1.1.5.6.3.1. No further information available.


1.1.5.6.3.2. Status of terminals
Warning!Communication with ECU required.


1.1.5.6.3.3. Kilometer reading / Key ID
Note

- A comparison of the odometer reading is made between individual control units.
- The instrument cluster takes the odometer reading from control unit N73 (EIS [EZS] control unit) if the value in control unit N73 (EIS [EZS] control unit) is greater.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.6.3.4. Fuel tank level
Warning!Communication with ECU required.


1.1.5.6.3.5. Turn signal indicators/hazard warning flashers
Warning!Communication with ECU required.


1.1.5.6.3.6. Central locking
Warning!Communication with ECU required.


1.1.5.6.3.7. Light sensor
Warning!Communication with ECU required.


1.1.5.6.3.8. Rain sensor
Warning!Communication with ECU required.


1.1.5.6.3.9. Lighting
Warning!Communication with ECU required.


1.1.5.6.3.10. Coding of vehicle variant
Warning!Communication with ECU required.


1.1.5.6.3.11. Coding of vehicle equipment
Warning!Communication with ECU required.


1.1.5.6.3.12. Mirror
Warning!Communication with ECU required.


1.1.5.6.3.13. Driver door power window
Warning!Communication with ECU required.


1.1.5.7. Year 2005 / Modification year 1
Important notes

- When CAN diagnosis is finished, the 8-pin CAN cable must be replaced with the diagnostic cable.
- Before values are read out from a control unit, the control unit must be reinitialized.
Continue with button F2

Test 1.1.5.7.1: Actual values via CAN ( Interior CAN bus )

Test 1.1.5.7.2: Bus wake-up event detection

Test 1.1.5.7.3: Bus keepawake event detection

1.1.5.7.1. Actual values via CAN ( Interior CAN bus )
Note

- The actual values shown on the following screens are only displayed and updated as long as the CAN bus is active.
Continue with button F2

Test 1.1.5.7.1.1: Function-specific actual values :

Test 1.1.5.7.1.2: Status of terminals

Test 1.1.5.7.1.3: Kilometer reading / Key ID

Test 1.1.5.7.1.4: Fuel tank level

Test 1.1.5.7.1.5: Turn signal indicators/hazard warning flashers

Test 1.1.5.7.1.6: Central locking

Test 1.1.5.7.1.7: Light sensor

Test 1.1.5.7.1.8: Rain sensor

Test 1.1.5.7.1.9: Lighting

Test 1.1.5.7.1.10: Coding of vehicle variant

Test 1.1.5.7.1.11: Coding of vehicle equipment

Test 1.1.5.7.1.12: Mirror

Test 1.1.5.7.1.13: Driver door power window

1.1.5.7.1.1. Function-specific actual values :

1.1.5.7.1.1. No further information available.


1.1.5.7.1.2. Status of terminals
Warning!Communication with ECU required.


1.1.5.7.1.3. Kilometer reading / Key ID
Note

- A comparison of the odometer reading is made between individual control units.
- The instrument cluster takes the odometer reading from control unit N73 (EIS [EZS] control unit) if the value in control unit N73 (EIS [EZS] control unit) is greater.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.7.1.4. Fuel tank level
Warning!Communication with ECU required.


1.1.5.7.1.5. Turn signal indicators/hazard warning flashers
Warning!Communication with ECU required.


1.1.5.7.1.6. Central locking
Warning!Communication with ECU required.


1.1.5.7.1.7. Light sensor
Warning!Communication with ECU required.


1.1.5.7.1.8. Rain sensor
Warning!Communication with ECU required.


1.1.5.7.1.9. Lighting
Warning!Communication with ECU required.


1.1.5.7.1.10. Coding of vehicle variant
Warning!Communication with ECU required.


1.1.5.7.1.11. Coding of vehicle equipment
Warning!Communication with ECU required.


1.1.5.7.1.12. Mirror
Warning!Communication with ECU required.


1.1.5.7.1.13. Driver door power window
Warning!Communication with ECU required.


1.1.5.7.2. Bus wake-up event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- The test should be performed for at least 60 min without interruption.
- If no fault cause is found in this time and the vehicle concerned is a problem vehicle, the test duration must be extended accordingly.
- The subsequent test is performed automatically and does not need to be monitored.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.7.3. Bus keepawake event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- If the CAN bus is in status 'NOT ACTIVE' and a control unit is displayed, this can be ignored.The affected control unit must not be replaced.
Test sequence

- The active control units gradually log off from the CAN bus and go into sleep mode.
- If fewer than 6 control units are still active, these are shown by their abbreviation.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.8. Year 2006 / Modification year 1
Important notes

- When CAN diagnosis is finished, the 8-pin CAN cable must be replaced with the diagnostic cable.
- Before values are read out from a control unit, the control unit must be reinitialized.
Continue with button F2

Test 1.1.5.8.1: Actual values via CAN ( Interior CAN bus )

Test 1.1.5.8.2: Bus wake-up event detection

Test 1.1.5.8.3: Bus keepawake event detection

1.1.5.8.1. Actual values via CAN ( Interior CAN bus )
Note

- The actual values shown on the following screens are only displayed and updated as long as the CAN bus is active.
Continue with button F2

Test 1.1.5.8.1.1: Function-specific actual values :

Test 1.1.5.8.1.2: Status of terminals

Test 1.1.5.8.1.3: Kilometer reading / Key ID

Test 1.1.5.8.1.4: Fuel tank level

Test 1.1.5.8.1.5: Turn signal indicators/hazard warning flashers

Test 1.1.5.8.1.6: Central locking

Test 1.1.5.8.1.7: Light sensor

Test 1.1.5.8.1.8: Rain sensor

Test 1.1.5.8.1.9: Lighting

Test 1.1.5.8.1.10: Coding of vehicle variant

Test 1.1.5.8.1.11: Coding of vehicle equipment

Test 1.1.5.8.1.12: Mirror

Test 1.1.5.8.1.13: Driver door power window

1.1.5.8.1.1. Function-specific actual values :

1.1.5.8.1.1. No further information available.


1.1.5.8.1.2. Status of terminals
Warning!Communication with ECU required.


1.1.5.8.1.3. Kilometer reading / Key ID
Note

- A comparison of the odometer reading is made between individual control units.
- The instrument cluster takes the odometer reading from control unit N73 (EIS [EZS] control unit) if the value in control unit N73 (EIS [EZS] control unit) is greater.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.8.1.4. Fuel tank level
Warning!Communication with ECU required.


1.1.5.8.1.5. Turn signal indicators/hazard warning flashers
Warning!Communication with ECU required.


1.1.5.8.1.6. Central locking
Warning!Communication with ECU required.


1.1.5.8.1.7. Light sensor
Warning!Communication with ECU required.


1.1.5.8.1.8. Rain sensor
Warning!Communication with ECU required.


1.1.5.8.1.9. Lighting
Warning!Communication with ECU required.


1.1.5.8.1.10. Coding of vehicle variant
Warning!Communication with ECU required.


1.1.5.8.1.11. Coding of vehicle equipment
Warning!Communication with ECU required.


1.1.5.8.1.12. Mirror
Warning!Communication with ECU required.


1.1.5.8.1.13. Driver door power window
Warning!Communication with ECU required.


1.1.5.8.2. Bus wake-up event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- The test should be performed for at least 60 min without interruption.
- If no fault cause is found in this time and the vehicle concerned is a problem vehicle, the test duration must be extended accordingly.
- The subsequent test is performed automatically and does not need to be monitored.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.8.3. Bus keepawake event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- If the CAN bus is in status 'NOT ACTIVE' and a control unit is displayed, this can be ignored.The affected control unit must not be replaced.
Test sequence

- The active control units gradually log off from the CAN bus and go into sleep mode.
- If fewer than 6 control units are still active, these are shown by their abbreviation.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.9. Year 2007 / Modification year 1
Important notes

- When CAN diagnosis is finished, the 8-pin CAN cable must be replaced with the diagnostic cable.
- Before values are read out from a control unit, the control unit must be reinitialized.
Continue with button F2

Test 1.1.5.9.1: Bus wake-up event detection

Test 1.1.5.9.2: Bus keepawake event detection

Test 1.1.5.9.3: Actual values via CAN ( Interior CAN bus )

1.1.5.9.1. Bus wake-up event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- The test should be performed for at least 60 min without interruption.
- If no fault cause is found in this time and the vehicle concerned is a problem vehicle, the test duration must be extended accordingly.
- The subsequent test is performed automatically and does not need to be monitored.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.9.2. Bus keepawake event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- If the CAN bus is in status 'NOT ACTIVE' and a control unit is displayed, this can be ignored.The affected control unit must not be replaced.
Test sequence

- The active control units gradually log off from the CAN bus and go into sleep mode.
- If fewer than 6 control units are still active, these are shown by their abbreviation.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.9.3. Actual values via CAN ( Interior CAN bus )
Note

- The actual values shown on the following screens are only displayed and updated as long as the CAN bus is active.
Continue with button F2

Test 1.1.5.9.3.1: Function-specific actual values :

Test 1.1.5.9.3.2: Status of terminals

Test 1.1.5.9.3.3: Kilometer reading / Key ID

Test 1.1.5.9.3.4: Fuel tank level

Test 1.1.5.9.3.5: Turn signal indicators/hazard warning flashers

Test 1.1.5.9.3.6: Central locking

Test 1.1.5.9.3.7: Light sensor

Test 1.1.5.9.3.8: Rain sensor

Test 1.1.5.9.3.9: Lighting

Test 1.1.5.9.3.10: Coding of vehicle variant

Test 1.1.5.9.3.11: Coding of vehicle equipment

Test 1.1.5.9.3.12: Mirror

Test 1.1.5.9.3.13: Driver door power window

1.1.5.9.3.1. Function-specific actual values :

1.1.5.9.3.1. No further information available.


1.1.5.9.3.2. Status of terminals
Warning!Communication with ECU required.


1.1.5.9.3.3. Kilometer reading / Key ID
Note

- A comparison of the odometer reading is made between individual control units.
- The instrument cluster takes the odometer reading from control unit N73 (EIS [EZS] control unit) if the value in control unit N73 (EIS [EZS] control unit) is greater.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.9.3.4. Fuel tank level
Warning!Communication with ECU required.


1.1.5.9.3.5. Turn signal indicators/hazard warning flashers
Warning!Communication with ECU required.


1.1.5.9.3.6. Central locking
Warning!Communication with ECU required.


1.1.5.9.3.7. Light sensor
Warning!Communication with ECU required.


1.1.5.9.3.8. Rain sensor
Warning!Communication with ECU required.


1.1.5.9.3.9. Lighting
Warning!Communication with ECU required.


1.1.5.9.3.10. Coding of vehicle variant
Warning!Communication with ECU required.


1.1.5.9.3.11. Coding of vehicle equipment
Warning!Communication with ECU required.


1.1.5.9.3.12. Mirror
Warning!Communication with ECU required.


1.1.5.9.3.13. Driver door power window
Warning!Communication with ECU required.


1.1.5.10. Year 2008 / Modification year 1
Important notes

- When CAN diagnosis is finished, the 8-pin CAN cable must be replaced with the diagnostic cable.
- Before values are read out from a control unit, the control unit must be reinitialized.
Continue with button F2

Test 1.1.5.10.1: Actual values via CAN ( Interior CAN bus )

Test 1.1.5.10.2: Bus wake-up event detection

Test 1.1.5.10.3: Bus keepawake event detection

1.1.5.10.1. Actual values via CAN ( Interior CAN bus )
Note

- The actual values shown on the following screens are only displayed and updated as long as the CAN bus is active.
Continue with button F2

Test 1.1.5.10.1.1: Function-specific actual values :

Test 1.1.5.10.1.2: Status of terminals

Test 1.1.5.10.1.3: Kilometer reading / Key ID

Test 1.1.5.10.1.4: Fuel tank level

Test 1.1.5.10.1.5: Turn signal indicators/hazard warning flashers

Test 1.1.5.10.1.6: Central locking

Test 1.1.5.10.1.7: Light sensor

Test 1.1.5.10.1.8: Rain sensor

Test 1.1.5.10.1.9: Lighting

Test 1.1.5.10.1.10: Coding of vehicle variant

Test 1.1.5.10.1.11: Coding of vehicle equipment

Test 1.1.5.10.1.12: Mirror

Test 1.1.5.10.1.13: Driver door power window

1.1.5.10.1.1. Function-specific actual values :

1.1.5.10.1.1. No further information available.


1.1.5.10.1.2. Status of terminals
Warning!Communication with ECU required.


1.1.5.10.1.3. Kilometer reading / Key ID
Note

- A comparison of the odometer reading is made between individual control units.
- The instrument cluster takes the odometer reading from control unit N73 (EIS [EZS] control unit) if the value in control unit N73 (EIS [EZS] control unit) is greater.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.10.1.4. Fuel tank level
Warning!Communication with ECU required.


1.1.5.10.1.5. Turn signal indicators/hazard warning flashers
Warning!Communication with ECU required.


1.1.5.10.1.6. Central locking
Warning!Communication with ECU required.


1.1.5.10.1.7. Light sensor
Warning!Communication with ECU required.


1.1.5.10.1.8. Rain sensor
Warning!Communication with ECU required.


1.1.5.10.1.9. Lighting
Warning!Communication with ECU required.


1.1.5.10.1.10. Coding of vehicle variant
Warning!Communication with ECU required.


1.1.5.10.1.11. Coding of vehicle equipment
Warning!Communication with ECU required.


1.1.5.10.1.12. Mirror
Warning!Communication with ECU required.


1.1.5.10.1.13. Driver door power window
Warning!Communication with ECU required.


1.1.5.10.2. Bus wake-up event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- The test should be performed for at least 60 min without interruption.
- If no fault cause is found in this time and the vehicle concerned is a problem vehicle, the test duration must be extended accordingly.
- The subsequent test is performed automatically and does not need to be monitored.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.10.3. Bus keepawake event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- If the CAN bus is in status 'NOT ACTIVE' and a control unit is displayed, this can be ignored.The affected control unit must not be replaced.
Test sequence

- The active control units gradually log off from the CAN bus and go into sleep mode.
- If fewer than 6 control units are still active, these are shown by their abbreviation.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.11. Year 2009 / Modification year 1
Important notes

- When CAN diagnosis is finished, the 8-pin CAN cable must be replaced with the diagnostic cable.
- Before values are read out from a control unit, the control unit must be reinitialized.
Continue with button F2

Test 1.1.5.11.1: Actual values via CAN ( Interior CAN bus )

Test 1.1.5.11.2: Bus wake-up event detection

Test 1.1.5.11.3: Bus keepawake event detection

1.1.5.11.1. Actual values via CAN ( Interior CAN bus )
Note

- The actual values shown on the following screens are only displayed and updated as long as the CAN bus is active.
Continue with button F2

Test 1.1.5.11.1.1: Function-specific actual values :

Test 1.1.5.11.1.2: Status of terminals

Test 1.1.5.11.1.3: Kilometer reading / Key ID

Test 1.1.5.11.1.4: Fuel tank level

Test 1.1.5.11.1.5: Turn signal indicators/hazard warning flashers

Test 1.1.5.11.1.6: Central locking

Test 1.1.5.11.1.7: Light sensor

Test 1.1.5.11.1.8: Rain sensor

Test 1.1.5.11.1.9: Lighting

Test 1.1.5.11.1.10: Coding of vehicle variant

Test 1.1.5.11.1.11: Coding of vehicle equipment

Test 1.1.5.11.1.12: Mirror

Test 1.1.5.11.1.13: Driver door power window

1.1.5.11.1.1. Function-specific actual values :

1.1.5.11.1.1. No further information available.


1.1.5.11.1.2. Status of terminals
Warning!Communication with ECU required.


1.1.5.11.1.3. Kilometer reading / Key ID
Note

- A comparison of the odometer reading is made between individual control units.
- The instrument cluster takes the odometer reading from control unit N73 (EIS [EZS] control unit) if the value in control unit N73 (EIS [EZS] control unit) is greater.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.11.1.4. Fuel tank level
Warning!Communication with ECU required.


1.1.5.11.1.5. Turn signal indicators/hazard warning flashers
Warning!Communication with ECU required.


1.1.5.11.1.6. Central locking
Warning!Communication with ECU required.


1.1.5.11.1.7. Light sensor
Warning!Communication with ECU required.


1.1.5.11.1.8. Rain sensor
Warning!Communication with ECU required.


1.1.5.11.1.9. Lighting
Warning!Communication with ECU required.


1.1.5.11.1.10. Coding of vehicle variant
Warning!Communication with ECU required.


1.1.5.11.1.11. Coding of vehicle equipment
Warning!Communication with ECU required.


1.1.5.11.1.12. Mirror
Warning!Communication with ECU required.


1.1.5.11.1.13. Driver door power window
Warning!Communication with ECU required.


1.1.5.11.2. Bus wake-up event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- The test should be performed for at least 60 min without interruption.
- If no fault cause is found in this time and the vehicle concerned is a problem vehicle, the test duration must be extended accordingly.
- The subsequent test is performed automatically and does not need to be monitored.
Continue with button F2

Warning!Communication with ECU required.


1.1.5.11.3. Bus keepawake event detection
Test prerequisite

- Switch off ignition.
General notes

- None of the controls in the vehicle should be moved for the entire duration of the test.
- Bus idle exists if terminal 15 is switched off and no CAN activity has been present for 1 min.
- If the CAN bus is in status 'NOT ACTIVE' and a control unit is displayed, this can be ignored.The affected control unit must not be replaced.
Test sequence

- The active control units gradually log off from the CAN bus and go into sleep mode.
- If fewer than 6 control units are still active, these are shown by their abbreviation.
Continue with button F2

Warning!Communication with ECU required.


2. Check component N10/8 (Rear SAM control module).
Possible cause and remedy

- Read out fault memory of control unit N10/8 (Rear SAM control module).
End of test

3. CAN communication is faulty.

Test 3.1: Check the CAN communication with control unit A1 (Instrument cluster).

3.1. Check the CAN communication with control unit A1 (Instrument cluster).

Test 3.1.1: Check the CAN communication with control unit Press in left driven axle rpm sensor as far as mechanical stop..

3.1.1. Check the CAN communication with control unit Press in left driven axle rpm sensor as far as mechanical stop..
Warning!Communication with ECU required.