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Fault Code 5527



Fault Code 5527

Transfer via CAN not possible

Diagnostic conditions
- Ignition on
- Battery positive voltage > 10 V
- Electrical test of CAN bus

Possible cause of fault
- Short circuit between the two CAN leads (CAN high and CAN low)
- Short circuit between CAN high and ground
- Short circuit between CAN low (drive) and B+
- A control module connected to the CAN bus is faulty

NOTE:
The following control modules are connected to the CAN drive bus:
- DME
- Tiptronic
- PSM and steering angle sensor
- as of model year 2002: Instrument cluster

Affected terminals
PSM 5.3 Terminals 61,63
PSM 5.7: Terminals 24, 40

Diagnosis/troubleshooting PSM 5.3


NOTE: The following troubleshooting applies for PSM 5.3; 911 Carrera 4; model year 1999.


Part 1:




Part 2:




Part 3:






Diagnosis/troubleshooting PSM 5.7

NOTE: The following troubleshooting applies for PSM 5.7 as of model year 1999.


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Part 3:




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