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P0517-BATTERY TEMPERATURE SENSOR CIRCUIT HIGH (CONTINUED) For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS). For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes (K25) BATT TEMP SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE (K25) BATT TEMP SIGNAL CIRCUIT OPEN (K900) SENSOR GROUND CIRCUIT OPEN BATTERY TEMPERATURE SENSOR PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. BATTERY TEMPERATURE SENSOR VOLTAGE ABOVE 4.8 VOLTS Ignition on, engine not running. With a scan tool, monitor the Battery Temperature Sensor voltage. Is the voltage above 4.9 volts? Yes >> Go To 2 No >> Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 2. BATTERY TEMPERATURE SENSOR Turn the ignition off. Disconnect the Battery Temperature Sensor harness connector. Ignition on, engine not running. With the scan tool, read the Battery Temp Voltage value. Connect a jumper wire between the (K25) Batt Temp Signal circuit and Did the Battery Temp voltage value change from greater than Yes >> Replace the Battery Temperature Sensor. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 3 NOTE: Remove the jumper wire before continuing. 9 - 562 ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L DR/DH |