No Auto Shutdown Relay Voltage At Powertrain Control Module
Table of contents
P1389 RAM Possible Causes
- Faulty Auto Shutdown (ASD) Relay
- Auto Shutdown (ASD) Relay harness is open or shorted
- Auto Shutdown (ASD) Relay circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How do I fix code P1389 RAM?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1389 RAM code
The cost of diagnosing the P1389 RAM code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1389 RAM Description
The Auto Shutdown (ASD) relay voltage is monitored with the engine running, battery voltage more than 10.4 volts and engine speed more than 400 RPM. The Diagnostic Trouble Code (DTC) will set in the Powertrain Control Module (PCM) memory when PCM does not sense voltage when ASD relay is energized.