Chrysler Error Code P1389: How to Fix It

Q: What causes Chrysler P1389 error code?

P1389 is typically caused by a faulty ASD relay, corroded relay socket connections, damaged wiring between the PCM and ASD relay, or in rare cases, a malfunctioning PCM that cannot properly control the relay circuit.

Q: Can I drive my Chrysler with P1389 code?

No, you should not drive with P1389 as it indicates a critical failure in the fuel and ignition power supply system. The vehicle may stall unexpectedly or fail to start, creating dangerous driving conditions.

Q: How much does it cost to fix P1389?

If it's just a faulty ASD relay, the repair costs $15-30 for the part plus labor. If wiring repair is needed, expect $100-300. PCM replacement is the most expensive option at $800-1500 including programming.

Q: Where is the ASD relay located in Chrysler vehicles?

The ASD relay is typically located in the engine compartment fuse/relay box, usually labeled on the cover. The exact location varies by model year, so consult your owner's manual or the fuse box diagram for precise placement.

Q: How do I know if my ASD relay is bad?

Signs of a bad ASD relay include engine cranking but not starting, engine stalling during operation, no fuel pump prime sound when turning the key, and the P1389 error code. The relay can be tested with a multimeter for proper coil resistance and contact operation.

Abstract

Chrysler error code P1389 indicates that the Powertrain Control Module (PCM) is not receiving proper voltage output from the Automatic Shutdown (ASD) relay. This critical error can cause engine stalling, no-start conditions, or complete loss of power to fuel injectors and ignition coils. The ASD relay is a safety feature that controls power to the fuel and ignition systems.