929 V6-3.0L DOHC (1993)
Temperature Gauge: Testing and Inspection
Fig. 20, Checking Water Temp. Gauge (929)
1. Remove instrument cluster.
2. Apply battery voltage to terminal 2H and ground terminal 2D, Fig. 20, then connect red lead of checker 49 0839 285 to terminal 2J and ground
black lead.
3. Set the checker to 17.9 ohms. Gauge should indicate Hot.
4. Set the checker to 180.5 ohms. Gauge should indicate Cold.
5. If gauge indicates correctly, repair wiring harness or replace water thermosensor.
6. If gauge does not indicate correctly, replace water temperature gauge.