TROUBLESHOOTING/ Monitor Unit Coolant Temperature Gauge Temperature of engine coolant is displayed on. T1V1-05-01-008 Primary Screen T5-2-8 Coolant Temperature Gauge Coolant Temperature Gauge Coolant Temperature Primary Screen Less than 40°C T1V1-05-02-038 40°C or more Less than 45°C T1V1-05-02-040