P1637 Mitsubishi Code - Malfunction of Memory Backup
Quick Answer
When the ignition switch is turned to the ON position, the Transmission Control Module (TCM) determines that the writing to the EEPROM area had failed last time the ignition switch was turned to the LOCK (OFF) position. Common causes include Faulty Transmission Control Module (TCM), TCM harness is open or shorted, TCM 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
- P1637 Mitsubishi indicates Malfunction of Memory Backup.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), TCM harness is open or shorted, TCM 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 P1637 Mitsubishi Description
What are the Possible Causes of the DTC P1637 Mitsubishi?
- Faulty Transmission Control Module (TCM)
- TCM harness is open or shorted
- TCM circuit poor electrical connection
How to Fix the DTC P1637 Mitsubishi?
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 P1637 Mitsubishi 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 P1637 Mitsubishi Code
1. What are the common symptoms of OBDII code P1637 in a Mitsubishi related to the malfunction of memory backup?
The common symptoms include difficulty starting the vehicle, loss of radio presets, clock reset, and issues with power windows and other electronic components.
2. What are the possible causes of the P1637 code indicating a malfunction of memory backup in a Mitsubishi?
The code may be triggered by a faulty memory backup power supply, a malfunctioning memory backup circuit, or a problem with the body control module.
3. How can I diagnose the cause of the P1637 code in my Mitsubishi related to memory backup malfunction?
You can start by checking the memory backup fuse, inspecting the wiring and connectors in the memory backup circuit, and testing the battery voltage to the memory backup power supply.
4. Are there any simple repair tips for addressing the P1637 code in a Mitsubishi due to memory backup issues?
You can try resetting the memory by disconnecting the battery for a few minutes and reconnecting it. Ensure the battery is in good condition and properly connected to address potential memory backup problems.
5. Can the P1637 code related to memory backup malfunction in a Mitsubishi be fixed without professional help?
In some cases, simple troubleshooting steps like checking fuses and connections may resolve the issue. However, if the problem persists, it is recommended to seek help from a qualified mechanic for a thorough diagnosis and repair.
6. Is it safe to continue driving my Mitsubishi with the P1637 code indicating memory backup malfunction?
While the vehicle may still be operable with this code, ignoring the issue can lead to further electrical problems and inconvenience. It is advisable to address the underlying cause promptly to prevent any potential complications.
7. How much does it typically cost to repair the P1637 code in a Mitsubishi related to memory backup malfunction?
The cost of repair can vary depending on the cause of the issue. Simple fixes like replacing a fuse may be inexpensive, while repairing or replacing components in the memory backup circuit can be more costly. It is best to get a professional assessment for an accurate estimate.
8. Can a DIY enthusiast with basic automotive knowledge fix the P1637 code indicating memory backup malfunction in a Mitsubishi?
While some basic troubleshooting steps can be attempted by DIY enthusiasts, diagnosing and repairing complex electrical issues like this code may require specialized tools and expertise. It is recommended to consult a professional if unsure.
9. Will resetting the OBDII code P1637 related to memory backup malfunction make it go away permanently?
Simply clearing the code may temporarily eliminate the warning, but if the underlying issue causing the memory backup malfunction is not addressed, the code is likely to reappear. It is crucial to identify and resolve the root cause for a permanent fix.
10. How long does it take to repair the OBDII code P1637 in a Mitsubishi caused by memory backup malfunction?
The repair time can vary based on the specific cause of the issue. Simple fixes may take a short time, while more complex repairs could require additional diagnostic work and parts replacement, extending the repair duration.
Discuss the causes and fixes for P1637 Mitsubishi OBDII Code
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The P1637 code is not common at all. Do you have any other symptoms? is your Outlander front wheel drive or all wheel drive? what size is the engine?
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