Transfer Box
Fault code 2048Transverse lock LED, rear (in control module)
Diagnostic conditions
- Ignition on
- Internal transfer box control module function test
If short circuit to B+:
Engage transverse lock.
If short circuit to ground:
Do not engage transverse lock.
Possible causes of fault
'Transverse lock LED' is activated by transfer box control unit on the ground side.
- 'Short circuit to B+': transverse lock LED does not light
- 'Short circuit to ground': transverse lock LED permanently lit
Affected pins
Transfer box control module plug:
- Pin 35 'transverse lock LED', to transverse lock LED (in running gear control module) 'pin 6'
Diagnosis/troubleshooting
NOTE:
Visual inspection: In the next troubleshooting section, please check first that the affected 'pins' of the transfer box control unit plug connection and the 'pins' of the plug connections on the servo motor are neither damaged nor corroded. Remove any soiling or corrosion/ oxidation. Replace damaged parts/wires.
NOTE:
Control unit replacement: Before replacing the 'transfer box control unit', the ground connections, power supply and plug connections on the control unit must be checked as OK. After the test drive, read out the fault memory with the 9588 Porsche System Tester II again. Additional causes of faults that could damage the 'transfer box control unit' should be detected and remedied.
