Voltage Measurements

NOTE: Check battery voltage should be between 11 & 13 volts and not go below 10 volts while cranking.




Grounds
** Not applicable for 911 Carrera.



Start Signal



Main Relay Supply



Altitude Switch
* No Altitude switch for 944 & 944 turbo.



Coolant Temperature Sensor



Air Temperature Sensor



Throttle Switch



Oxygen Sensor



Air Flow Sensor



Fuel Pump Relay