P1389 Jeep Code - No Auto Shutdown Relay Voltage At Powertrain Control Module
Quick Answer
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. Common causes include Faulty ASD Relay, ASD Relay harness is open or shorted, ASD Relay circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1389 Jeep indicates No Auto Shutdown Relay Voltage At Powertrain Control Module.
- Common causes
- Common causes include Faulty ASD Relay, ASD Relay harness is open or shorted, ASD Relay circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1389 Jeep Description
What are the Possible Causes of the DTC P1389 Jeep?
- Faulty ASD Relay
- ASD Relay harness is open or shorted
- ASD Relay circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1389 Jeep?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1389 Jeep code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1389 Jeep Code
1. What are the common symptoms of OBDII code P1389 in a Jeep related to the Auto Shutdown Relay voltage issue?
- Common symptoms include engine stalling, difficulty starting the vehicle, and the engine not turning over.
2. What could be causing the OBDII code P1389 in a Jeep indicating no Auto Shutdown Relay voltage at the Powertrain Control Module?
- Possible causes may include a faulty Auto Shutdown Relay, damaged wiring or connectors, or a malfunctioning Powertrain Control Module.
3. How can I diagnose the OBDII code P1389 in my Jeep if I suspect an issue with the Auto Shutdown Relay voltage?
- You can use a multimeter to test the voltage at the Auto Shutdown Relay and the Powertrain Control Module to determine if there is a proper connection.
4. Are there any repair tips for fixing the OBDII code P1389 related to the Auto Shutdown Relay voltage problem in a Jeep?
- Ensure all wiring and connectors are secure and free of damage, replace the Auto Shutdown Relay if necessary, and consider checking the Powertrain Control Module for any faults.
5. Can a DIY enthusiast repair the OBDII code P1389 indicating no Auto Shutdown Relay voltage at the Powertrain Control Module in a Jeep?
- While some basic troubleshooting and repairs can be done by DIY enthusiasts, it is recommended to consult a professional mechanic for a thorough diagnosis and repair to ensure proper resolution.
6. Is it safe to continue driving my Jeep with the OBDII code P1389 related to the Auto Shutdown Relay voltage issue?
- It is not recommended to drive the vehicle with this issue as it may lead to engine stalling or starting problems, which can compromise safety and reliability.
7. How much does it typically cost to repair the OBDII code P1389 concerning the Auto Shutdown Relay voltage issue in a Jeep?
- Repair costs can vary depending on the exact cause of the problem, but it may range from $100 to $500 or more, including parts and labor.
8. Can extreme weather conditions affect the occurrence of the OBDII code P1389 in a Jeep due to the Auto Shutdown Relay voltage problem?
- Yes, extreme temperatures or moisture can potentially exacerbate electrical issues, leading to the symptoms associated with the code P1389.
9. Are there any preventive measures I can take to avoid encountering the OBDII code P1389 related to the Auto Shutdown Relay voltage issue in my Jeep?
- Regularly inspecting and maintaining the electrical components, such as the Auto Shutdown Relay and wiring, can help prevent issues that may trigger the code P1389.
10. How urgent is it to address the OBDII code P1389 indicating no Auto Shutdown Relay voltage at the Powertrain Control Module in a Jeep?
- It is advisable to address the issue promptly to prevent potential engine performance issues and ensure the vehicle operates safely and reliably.
Discuss the causes and fixes for P1389 Jeep OBDII Code
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My son got gas and the Jeep Cherokee won’t start. Pulled P1389 code. Replaced the cops sensor and still no start
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What sensor did you replaced?
The P1389 indicates that there is problem with the Auto Shutdown (ASD) relay. I recommend starting by replacing the Auto Shutdown (ASD) relay.
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