DTC P0463: Fuel Level Sending Unit Volts Too High: Testing
- Turn ignition on. Using scan tool, read DTCs. If Good Trip counter is displayed for DTC P0463 and displayed count is "0", go to FUEL LEVEL SENDING UNIT INPUT OPEN under SYSTEM TESTS in BODY CONTROL MODULES - CARAVAN, TOWN & COUNTRY, & VOYAGER article in ACCESSORIES & EQUIPMENT. If Good Trip counter is not displayed for DTC P0463 or displayed count is not "0", go to next step.
- At this time, conditions for DTC to set do not exist or fault is an intermittent problem. Start engine and allow it to idle. Ensure engine is at normal operating temperature. Using scan tool, monitor parameters related to DTC while wiggling connectors and wiring harness. If value changes while wiggling connectors and wiring harness, repair connectors and wiring harness where wiggling caused value to change. If value does not change, review Freeze Frame data using scan tool. Attempt to duplicate condition that caused DTC to set. Check for any related technical service bulletins that may apply. Visually inspect related connectors and wiring harness. Repair connectors and wiring harness as necessary. See WIRING DIAGRAMS article. If no problems are indicated, test is complete.