DR-6A Fault Code 22 Coolant Sensor Circuit

1. Connect diagnostic read-out tool to engine test connector.
2. Turn ignition switch off, then disconnect coolant sensor electrical connector.
3. Enter system into sensor test mode 04. Display reading must be multiplied by 10 to determine actual reading.
4. If display indicates 00°, proceed to step B.
5. If display indicates 260°, replace logic module.