With Auto-Check System
Engine coolant temperature gauge, checking(for vehicles with Auto-Check system)
- remove connector from thermoswitch
- connect VW 1301 to contact T and ground
- set dial of VW 1301 to 660
- switch ignition ON
- needle must move to area A on gauge
- set dial of VW 1301 to 58
- needle must move to area B on gauge
If needle does not move to specified area,
- check wiring according to current flow diagram
If wiring is OK,
- replace temperature gauge