Chrysler P1492 Error Code: How to Fix It

Q: What causes Chrysler P1492 error code?

P1492 is typically caused by a faulty battery temperature sensor, corroded wiring connections, damaged sensor wiring, or in rare cases, a problem with the powertrain control module (PCM).

Q: Can I drive with P1492 code?

Yes, you can typically drive with this code as it's considered low severity. However, the battery charging system may not operate at peak efficiency, so it's best to address it promptly to avoid potential battery issues.

Q: How much does it cost to fix P1492?

If you DIY, expect to spend $20-50 for a replacement battery temperature sensor. Professional repair typically costs $80-150 including labor, unless additional wiring repair is needed.

Q: Where is the battery temperature sensor located on Chrysler vehicles?

The battery temperature sensor is usually attached to or near the negative battery terminal, sometimes mounted on the battery tray. Look for a small sensor with 2-3 wires leading to a connector.

Q: Will P1492 cause my Chrysler to fail emissions testing?

P1492 may cause your vehicle to fail emissions testing in some states, as any stored diagnostic trouble codes can result in a failed inspection. Clear the code and ensure it doesn't return before testing.

Abstract

The Chrysler P1492 error code indicates that the battery temperature sensor is reporting a voltage reading that's higher than normal operating range. This sensor helps the engine control module monitor battery temperature for optimal charging performance.