October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Body Control Unit - General Information: Troubleshooting

For specific DTC testing, see ON-BOARD DIAGNOSTICS - BOSCH M5.2.1 ENGINE MANAGEMENT - DISCOVERY & RANGE ROVER and ON-BOARD DIAGNOSTICS - DISCOVERY & RANGE ROVER .