5000CS Turbo L5-2226cc 2.22L SOHC Turbo (MC) (1987)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
Coolant Temperature Signal, Checking
Coolant temperature sensor, checking
Test conditions
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coolant temperature min. 20°C (68°F)
Work sequence
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Remove connector from coolant temperature sensor (arrow)
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Connect ohmmeter between coolant temperature sensor and ground cable
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Specification: 60 ohm - 1 K ohm
If specification NOT OK
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Replace coolant temperature sensor
If specification OK
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Check sensor wiring
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Remove control unit cover located in passenger side footwell and unplug control unit connector
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Connect ohmmeter between contact 10 on control unit connector A and disconnected wire from coolant temperature sensor
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Specification: approx. 0 ohm
If specification OK
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Check for open circuit in wiring
If circuit OK
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Replace control unit