Coolant Temperature Sensor

Locate connector "A" behind dash gauge unit. Connect ohmmeter to pin No. 3. Resistance should be 140 ohms at 140°F (60°C), 50 ohms at 194°F (90°C) or 38 ohms at 212°F (100°C).

Fig 1: 924 & 944 Series Dash Gauge Connectors

Fig 2: Exploded View of Instrument Cluster

Courtesy of PORSCHE OF NORTH AMERICA, INC.