Chrysler Error Code P1488: How to Fix It

Q: What causes Chrysler P1488 error code?

P1488 is typically caused by a failing ECM internal voltage regulator, corroded electrical connections, low battery voltage, or damaged wiring in the 5-volt reference circuit that supplies power to various sensors.

Q: Can I drive with P1488 code?

You should avoid driving with P1488 as it can cause unpredictable engine behavior, stalling, or complete failure to start. The low voltage can affect critical sensors needed for proper engine operation.

Q: How much does it cost to fix P1488?

Repair costs vary widely depending on the root cause. Simple fixes like cleaning connections cost under $50, while ECM replacement can range from $800-1500 including parts and programming.

Q: Will P1488 clear itself?

P1488 will not clear itself until the underlying voltage supply issue is resolved. The code may temporarily disappear but will return when the ECM detects the low voltage condition again.

Q: Is P1488 a serious problem?

Yes, P1488 is considered a serious issue as it affects the ECM's ability to provide proper voltage to engine sensors, which can result in poor performance, emissions issues, and potential engine damage if left unrepaired.

Abstract

The P1488 error code indicates that your Chrysler vehicle's Engine Control Module (ECM) is detecting that the auxiliary 5-volt power supply is running below normal voltage levels. This can cause various sensors and electronic components to malfunction, leading to poor engine performance, stalling, or no-start conditions.