P1492 Code - Battery Temperature Sensor Voltage Too high
Quick Answer
With the key on or engine running, then the Powertrain Control Module (PCM) detects that the Battery Temperature Sensor (BTS) value was more than 4.9v for 3 seconds. Common causes include Faulty Battery Temperature Sensor, Battery Temperature Sensor harness is open or shorted, Battery Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1492 indicates Battery Temperature Sensor Voltage Too high.
- Common causes
- Common causes include Faulty Battery Temperature Sensor, Battery Temperature Sensor harness is open or shorted, Battery Temperature Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1492 Description
What are the Possible Causes of the DTC P1492?
- Faulty Battery Temperature Sensor
- Battery Temperature Sensor harness is open or shorted
- Battery Temperature Sensor circuit poor electrical connection
How to Fix the DTC P1492?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1492 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P1492 Chrysler — Battery Temperature Sensor Voltage Too high
- P1492 Dodge — Battery Temperature Sensor Voltage Too high
- P1492 Infiniti — EVAP Canister Purge Control/Solenoid Valve
- P1492 Jeep — Battery Temperature Sensor Voltage Too high
- P1492 Mitsubishi — Battery Temperature Sensor Voltage Too high
- P1492 Nissan — EVAP Canister Purge Control/Solenoid Valve
- P1492 Saab — Evaporative Emission Pressure Sensor / Fuel Tank Level Sensor In Fuel Tank - Range / Performance Problem / Malfunction
- P1492 Subaru — EGR Signal Line 1 Circuit Low
Frequently Asked Questions about P1492 Code
1. What are the common symptoms of OBDII code P1492 (Battery Temperature Sensor Voltage Too high)?
- Common symptoms include the illumination of the Check Engine Light, reduced fuel efficiency, and potential issues with the vehicle's battery.
2. What are the possible causes of OBDII code P1492?
- The code P1492 can be triggered by a faulty battery temperature sensor, a problem with the sensor's wiring or connections, or issues with the vehicle's battery itself.
3. How can I diagnose the root cause of OBDII code P1492?
- Diagnosis typically involves checking the battery temperature sensor, inspecting its wiring for damage, and testing the sensor's voltage output using a multimeter.
4. Can I continue driving my vehicle with the OBDII code P1492 present?
- It is generally not recommended to ignore OBDII codes, as they can indicate underlying issues that may worsen over time. It's best to address the problem promptly.
5. How can I repair OBDII code P1492 at home?
- If you have the necessary tools and expertise, you can attempt to replace the battery temperature sensor yourself. Ensure you follow the manufacturer's instructions and safety precautions.
6. Is it necessary to visit a mechanic for OBDII code P1492?
- While some DIY repairs are possible, seeking the expertise of a qualified mechanic is advisable for accurate diagnosis and proper resolution of the issue related to code P1492.
7. Can a faulty battery temperature sensor cause other problems in the vehicle?
- Yes, a faulty battery temperature sensor can potentially cause issues with the vehicle's charging system, battery performance, and overall electrical system functionality.
8. How much does it cost to fix OBDII code P1492 at a repair shop?
- The cost of repairs for code P1492 can vary depending on the location, the specific underlying issue, and the labor rates of the repair shop. It's best to get a diagnostic and estimate from a trusted mechanic.
9. Are there any preventive measures to avoid OBDII code P1492 in the future?
- Regularly inspecting and maintaining the battery temperature sensor, along with keeping the battery in good condition, can help prevent issues that may trigger code P1492.
10. Will resetting the Check Engine Light clear OBDII code P1492?
- Resetting the Check Engine Light may temporarily turn it off, but if the underlying issue causing code P1492 is not addressed, the light is likely to come back on. It's important to diagnose and fix the root cause.
Discuss the causes and fixes for P1492 OBDII Code
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