What does code P1389 mean on Dodge vehicles?
No ASD relay output voltage is detected at the PCM.
OBD-II Code Dodge
P1389 — Dodge — No Auto Shutdown (ASD) Relay Output Voltage At PCM
No ASD relay output voltage is detected at the PCM.
Common symptoms
- No start
- total power loss
Possible causes
- Faulty ASD relay
- open circuit
Initial recommendation
Verify ASD relay output voltage to PCM.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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