1989 Jaguar XJS

Tiny
REX L MORGAN
  • MEMBER
  • 1989 JAGUAR XJS
  • V12
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
How do I tell if my coolant temp sensor is working properly
Tuesday, February 12th, 2008 AT 9:43 PM

1 Reply

Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
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
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Wednesday, January 6th, 2010 AT 5:59 AM

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