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DTC P0516: Battery Temperature Sensor Low: Testing

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition on, engine not running. With the DRBIII® scan tool, read DTCs and record the related freeze frame data. With the DRBIII® scan tool, read the battery temperature sensor voltage. Is the voltage below 0.5 volt? If yes, go to next step. If no, see INTERMITTENT CONDITION  under SELF-DIAGNOSTIC SYSTEM.
  2. With the DRBIII® scan tool in sensors, read the battery temperature sensor voltage value. Disconnect the battery temperature sensor harness connector. Did the battery temperature sensor voltage change from below 1.0 volt to above 4.5 volts? If yes, replace the battery temperature sensor. If no, go to next step.
  3. Turn the ignition off. Disconnect the PCM harness connectors. Measure the resistance between ground and the (K118) battery temperature signal circuit in the battery temperature sensor harness connector. Is the resistance below 100 ohms? If yes, repair the short to ground in the (K118) battery temperature signal circuit. If no, go to next step.
  4. Measure the resistance between the (K118) battery temperature signal circuit and the (K4) sensor ground circuit at the battery temperature sensor harness connector. Is the resistance below 5.0 ohms? If yes, repair the (K4) sensor ground shorted to the (K118) battery temperature sensor signal circuit. If no, go to next step.
    5. NOTE: Before continuing, disconnect the PCM harness connectors and check the related wiring terminals for corrosion, damage or terminal push out. Repair as necessary.
  5. Using the wiring diagram as a guide, inspect the wire harness and connectors. Visually inspect the related wire harness. Look for any chafed, pierced, pinched, or partially broken wires. Visually inspect both the component and the PCM connectors. Pay particular attention to all power and ground circuits. If there are no possible causes remaining, replace and program the PCM. See PROGRAMMING .
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