Coolant Temperature Sensor (CTS)
- Ensure ignition is off. Disconnect electrical connector from CTS. The CTS is located in engine coolant passage near cylinder head or thermostat housing. It may be necessary to verify wire colors for proper identification. See appropriate wiring diagram in WIRING DIAGRAMS
article in the ENGINE PERFORMANCE Section.NOTE: The CTS may be also identified by appropriate illustration in THEORY/OPERATION article in the ENGINE PERFORMANCE Section.
- Using ohmmeter, check resistance between CTS electrical terminals. Resistance should be within specification at designated temperature. See Fig 1. On all models, replace CTS if resistance is not within specification.