108 RENR5042-02 Troubleshooting Section g01121173 Illustration 33 g01102181 Illustration 35 Engine components for the engine coolant level sensor (1) P61 customer connector (2) J1/P1 connectors P1 terminals that are associated with the engine coolant level sensor (P1-3) Return (P1-4) +8 VDC (digital sensor supply) (P1-49) Engine coolant level g01119186 Illustration 34 Rear view of a typical radiator with a engine coolant level sensor B. Thoroughly inspect connectors (1) and (2). Inspect the J800/P800 connectors for the engine coolant level sensor. Refer to Troubleshooting, “Electrical Connectors - Inspect”.