Mechanics

JAGUAR XJS SENSOR PROBLEM

1989 Jaguar XJS

Engine problem
1989 Jaguar XJS V12 Two Wheel Drive Automatic 95000 miles

how do I tell if my coolant temp sensor is working properly
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REX L MORGAN
February 12, 2008.



XJS COOLANT TEMPERATURE SENSOR TEST
Disconnect battery ground cable. Remove connector from temperature sensor. Connect an ohmmeter between sensor terminals. Resistance should be as specified. Refer to the XJS COOLANT TEMPERATURE SENSOR RESISTANCE table in this article.
Check resistance between each of sensor terminals and sensor case. High or infinite resistance should be present. Connect sensor connector and negative battery cable.
XJS COOLANT TEMPERATURE SENSOR RESISTANCE
Temperature °F ( °C)Ohms
14 (-10)9200
32 (0)5900
50 (10)3700
68 (20)2500
86 (30)1700
104 (40)1180
122 (50)840
140 (60)600
158 (70)435
176 (80)325
194 (90)250
212 (100)190

Dave H
Jan 6, 2010.