- Check the CAN communication with control unit A1 (Instrument cluster).
- Interior CAN bus
Affected functions:
- Fuel level indicator
- Engine running
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Test 1: Interior CAN bus
Test 2: CAN communication is faulty.
Test 3: Check component N10 (SAM control unit).
1. Interior CAN bus
Warning!Communication with ECU required.
2. CAN communication is faulty.
Test 2.1: Check the CAN communication with control unit A1 (Instrument cluster).
2.1. Check the CAN communication with control unit A1 (Instrument cluster).
Test 2.1.1: Check the CAN communication with control unit.
2.1.1. Check the CAN communication with control unit.
Warning!Communication with ECU required.
3. Check component N10 (SAM control unit).
Possible cause and remedy
- Read out fault memory of control unit N10/2 (Rear SAM control unit with fuse and relay module).
End of test
2340
Self-adjustment of the mixture formation of the left cylinder bank is erratic.
Possible cause:
- Selfadaptation of mixture formation
Affected functions:
- Engine output
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Test 1: Check self-adaptation of mixture formation.
1. Check self-adaptation of mixture formation.
Test sequence
- Check actual value Selfadaptation of mixture formation.
- Carry out the following tests.
Continue with button F2
Warning!Communication with ECU required.
2342
The right fuel level sensor has a short circuit to ground.
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