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Home >> Toyota >> 1995 >> Paseo Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Testing >> Code 22 - Coolant Temperature Sensor (Cts) Circuit >> Circuit Description
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Circuit Description

The CTS is a thermistor that monitors water temperature. CTS is located next to heater hose connection on side of cylinder head. Code is set when ECM detects a open or short circuit. Possible causes are:

NOTE: If Codes 22, 24, 31 and 41 are output together, inspect ECM terminal E2 (ground) circuit. Repair as needed. See wiring diagram in the WIRING DIAGRAMS article.
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