Corolla Sedan 4-Door L4-107.5 1762cc 1.8L DOHC (7A-FE) (1995)
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Temperature Gauge: Testing and Inspection
Fig. 75 Temperature Gauge Terminal Locations
1.
Disconnect connector from sender gauge.
2.
Turn ignition switch ON, then check receiver gauge needle indicates COOL.
3.
Ground terminal on wire harness side connector through a 3.4W test bulb.
4.
Turn ignition switch ON, then check bulb lights up and receiver gauge needle moves toward hot side.
5.
If operation is as specified, replace sender gauge, then recheck system.
6.
If operation is not as specified, measure receiver gauge resistance between terminals A, B and C.
7.
On models with tachometer, resistance should be as follows:
a. A-B: about 176.0 ohms.
b. A-C: about 54.0 ohms.
c. B-C: about 230.0 ohms.
8.
On models less tachometer, resistance should be as follows:
a. A-B: about 230.0 ohms.
b. A-C: about 54.0 ohms.
c. B-C: about 176.0 ohms.
9.
If resistance is not as specified, replace receiver gauge.
10.
Measure sender resistance between terminal and ground. Resistance should be 160-314 ohms at 122°F and 17-30 ohms at 248°F.
11.
If resistance is not as specified, replace sender gauge.
