Guide To P0514 OBD Error Code Solutions

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Worried about fighting the OBD error code P0514? Don’t worry, we have got you covered! Here’s a little guide to help you comprehend the error code P0514. This generic trouble diagnostic code symbolizes a malfunction in the battery temperature sensor. The battery temperature sensor is in charge of informing the engine control module (PCM) about the temperature of the battery in order to avoid the battery from heating excessively. When the PCM detects a wrong signal from the sensor it sets the code P0514.

The battery temperature sensor is used to govern the battery temperature and the control battery charging rate. The temperature data along with the data from the monitored line voltage is used y the PCM to differentiate the battery charging rate. The system voltage is observed to be higher at colder temperatures and is gradually reduced at warmer temperatures.

What causes this problem with Battery Temperature Sensor Circuit Range/Performance?

• Possibly an open in the signal circuit to the BTS sensor
• Short to voltage (short circuit) in the signal circuit to the BTS sensor
• Signal circuit to the BTS sensor short to ground
• Power shortage in the signal circuit to the BTS sensor
• A failure in the BTS sensor (likely possible)
• A possible fault or failure in the PCM (unlikely)

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4. Indicator Lamp - A dimmed indicator lamp can often be problematic. So, replacing one can be one of the wisest decisions to avoid a problematic system and complications caused by the error code P0514.
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8. Wiring Harness - A distorted wiring harness can end up being the chief host inviting the error code P0514. So, replacing one can be one of the wisest decisions to avoid a problematic system.
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10. Powertrain Control Module - abbreviated PCM; this is an integral control unit. So, a defective one should be changed immediately.

Interested in knowing the symptoms? So, put on your alert glasses on! We at Parts Avatar have listed out a few common symptoms associated with Battery Temperature Sensor Range/Performance

Common symptoms

• Illuminated Malfunction Indicator Lamp (MIL)
• Lower indicated charging voltage (likely possible)
• Charge indicator light flashing

Pay attention to some ways by which you can correct the code P0514:

If you see a P0514 code, you need to change restore your battery temperature sensor. Also, for assurance, you will have to test the resistance of the battery sensor and compare the results with the manufacturer’s specifications. If the data fails to match with the manufacturer’ specified reference voltage.

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• To begin with, always check for technical service bulletins (TSB) for your vehicle. Your issue can be a known issue with a known fix put out by the manufacturer and can save your time and money diagnosis
• Up next, locate the battery temperature sensor on your vehicle. The sensor generally placed close to the battery/fixed inside the PCM. Once placed, investigate visually the wirings and connectors. See for scraping, rubbing bare wires, burn spots or melted plastic. Pull the connector apart and attentively check the terminals (the metal parts) inside the connector. If burnt or a green tint is noticed, it may indicate corrosion. Use an electrical contact cleaner and a plastic bristle brush to clean the terminal (if required). Let it dry and then apply electrical grease where the terminals contact
• With a scan tool, clear the DTCs from the memory and see if the code returns. If it does not then the connections were most probably the problem
• If the code P0514 does not return, the BTS sensor should be tested along with the circuits associated with it. When the key is off, disconnect the electrical connector to the BTS sensor. Then connect a digital Voltmeter black lead to the ground terminal at the BTS sensor wiring harness connector. Next connect the red lead of the digital Voltmeter to the signal terminal at the BTS sensor wiring harness connector. Then again, turn the engine key off. Following this the manufacturer’s specification should be checked (the voltmeter should read 5 volts). If it does not, repair either one of the following parts - the signal, ground wire or replace the PCM
• If the first test passed successfully but you still get the P0514, it would most likely be an indicator of a failure in the PCM (which can’t be ruled out until the BTS sensor is replaced). If still unsure, you can seek assistance from a trained automotive diagnostician. The PCMs must be programmed or calibrated to the vehicle to be installed accurately

Common Mistakes When Diagnosing the P0514 Code

• A failure in the Battery temperature sensor
• A possible fault or failure in the PCM
• Issues with the wirings