U1440 Chrysler Code - Implausible/Missing Programmed Transfer Case Hi Ratio
Quick Answer
This programmed Transfer Case Hi Ratio information is received from the Totally Integrated Power Module (TIPM) to be used by the Transmission Control Module (TCM) as part of speed sensor diagnostics. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (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
- U1440 Chrysler indicates Implausible/Missing Programmed Transfer Case Hi Ratio.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (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 U1440 Chrysler Description
What are the Possible Causes of the DTC U1440 Chrysler?
- Faulty Transmission Control Module (TCM)
- Transmission Control Module (TCM) harness is open or shorted
- Transmission Control Module (TCM) circuit poor electrical connection
- Faulty Totally Integrated Power Module (TIPM)
How to Fix the DTC U1440 Chrysler?
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 U1440 Chrysler 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 U1440 Chrysler Code
1. What are the common symptoms of OBDII code U1440 Chrysler?
The common symptoms of U1440 Chrysler code include the Service 4WD light illuminating on the dashboard, erratic shifting of the transfer case, and possible loss of 4WD functionality.
2. What does the OBDII code U1440 Chrysler "Implausible/Missing Programmed Transfer Case Hi Ratio" mean?
This code indicates that the transfer case control module has detected an implausible or missing signal related to the high gear ratio within the transfer case.
3. What are some possible causes of the U1440 Chrysler code?
Possible causes of U1440 Chrysler code include a faulty transfer case control module, damaged wiring or connectors in the transfer case system, or a malfunctioning transfer case actuator.
4. How can I diagnose the U1440 Chrysler code?
Diagnosing the U1440 Chrysler code typically involves using a diagnostic scanner to retrieve the code and then performing a thorough inspection of the transfer case system, including checking for wiring issues and testing the transfer case control module.
5. Is it safe to continue driving with the U1440 Chrysler code present?
It is not recommended to drive with the U1440 Chrysler code present, as it can lead to further damage to the transfer case system and potentially compromise the vehicle's 4WD functionality.
6. Can I reset the U1440 Chrysler code on my own?
While you can reset the code using a diagnostic scanner, it is important to address the underlying issue causing the code to prevent it from recurring.
7. How can I repair the U1440 Chrysler code?
Repairing the U1440 Chrysler code may involve replacing the transfer case control module, repairing any damaged wiring or connectors, or addressing any other issues identified during the diagnostic process.
8. Will the U1440 Chrysler code cause my vehicle to fail an emissions test?
The U1440 Chrysler code itself is not directly related to emissions, but it can impact the overall performance and drivability of the vehicle, which may lead to a failed emissions test.
9. Can extreme weather conditions trigger the U1440 Chrysler code?
Extreme weather conditions such as excessive heat or moisture can potentially contribute to the conditions that trigger the U1440 Chrysler code, especially if they lead to wiring corrosion or damage.
10. How much does it typically cost to repair the U1440 Chrysler code?
The cost of repairing the U1440 Chrysler code can vary depending on the underlying issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
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