Symptom Chart

Symptom	Possible Causes	Action
Coolant loss	Coolant leak Hoses Hose connections Radiator Coolant pump Heater core Gaskets Engine casting cracks Cylinder block core plugs	Perform a visual inspection. If there are no obvious leaks, perform a cooling system pressure test. Rectify any leaks as necessary
Engine overheats	Low/contaminated coolant Thermostat stuck closed Cooling fan failure Radiator airflow restricted Engine management system fault	Inspect the coolant level and condition. Complete a cooling system pressure test. Rectify as necessary Inspect the thermostat and rectify as necessary Inspect the operation of the viscous fan. Rectify as necessary Inspect the radiator for obstructions to the airflow. Rectify as necessary. Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine not reaching normal temperature	Thermostat stuck open Cooling fan failure	Inspect the thermostat and rectify as necessary Inspect the operation of the viscous fan. Rectify as necessary
No or low coolant flow in the cooling system with the following DTC s set P023A P023B P023C P2B83 P2B84 P026E P2BC2	Low coolant or coolant flow restriction Poor or damaged wiring or connections Water ingress in to the wiring harness or connectors Fuse failure Powertrain control module or calibration fault Power supply. Battery, charging system or ground fault Variable coolant pump failure	Complete the variable coolant pump pinpoint test in this article. GO to PINPOINT TEST A .