P1389
No Auto Shutdown Relay Voltage At Powertrain Control Module
P1389 is an OBD-II diagnostic trouble code meaning: No Auto Shutdown Relay Voltage At Powertrain Control Module. Common causes: faulty automatic shutdown relay (asd), open or short circuit in the asd relay circuit. Estimated repair cost: $6–28.
Symptoms
- Engine won't start
- The engine stalls while driving
- No spark or fuel supply
- Check Engine Light Is On
- Loss of engine power
Causes
- Faulty automatic shutdown relay (ASD)
- Open or short circuit in the ASD relay circuit
- Problems with the wiring harness or connectors
- Powertrain control module (PCM) malfunction
- Poor grounding in the relay circuit
How to Fix
- Check the condition of the ASD relay and replace if necessary
- Check the integrity of the power supply and relay control circuits
- Inspect connectors and wiring harness for damage
- Check relay circuit grounding
- If necessary, diagnose the PCM
Related codes
Error P1389 by Vehicle Brand
FAQ
What does the P1389 code mean?
P1389 is an OBD-II diagnostic trouble code that indicates: No Auto Shutdown Relay Voltage At Powertrain Control Module
What causes a P1389 error code?
The most common causes of P1389 include: Faulty automatic shutdown relay (ASD); Open or short circuit in the ASD relay circuit; Problems with the wiring harness or connectors; Powertrain control module (PCM) malfunction.
How do I fix a P1389 diagnostic trouble code?
To fix P1389: Check the condition of the ASD relay and replace if necessary. Check the integrity of the power supply and relay control circuits. Inspect connectors and wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1389?
Do not drive — repair immediately
How much does it cost to fix P1389?
The estimated repair cost for P1389 is $6–28. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat