Part 1
Part 2
Fault Code 20
Alarm system I32; 148
Fault code 20
Status lead, signal converter, short circuit to ground
Diagnostic conditions
- Pin 86S switched on
Possible cause of fault
- Short circuit to ground in the wire between the alarm system control module and the signal converter
Affected terminals
Plug A, pins 3 and 4
Diagnosis/troubleshooting