Temperature Gauge: Testing and Inspection

Continue checks for at least two minutes each to correctly judge condition. Allowable indication error is twice the width of the needle.
1. Disconnect electrical connector from water thermosensor and connect red lead of checker 49 0839 285 to connector and black lead to body ground.
2. Turn ignition switch to On position and proceed as follows:
a. Set checker to 8 ohms. Gauge should indicate Hot.
b. Set checker to 215 ohms. Gauge should indicate Cold.
3. If gauge indicates correctly, replace water thermosensor.
4. If gauge does not indicate correctly, repair wiring harness or replace water temperature gauge.