U0253 Code - Lost Communication With Accessory Protocol Interface Module
Quick Answer
A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Accessory Protocol Interface Module, Accessory Protocol Interface Module harness is open or shorted, Accessory Protocol Interface Module 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
- U0253 indicates Lost Communication With Accessory Protocol Interface Module.
- Common causes
- Common causes include Faulty Accessory Protocol Interface Module, Accessory Protocol Interface Module harness is open or shorted, Accessory Protocol Interface Module 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 U0253 Description
What are the Possible Causes of the DTC U0253?
- Faulty Accessory Protocol Interface Module
- Accessory Protocol Interface Module harness is open or shorted
- Accessory Protocol Interface Module circuit poor electrical connection
How to Fix the DTC U0253?
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 U0253 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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Information for Specific Makes
- U0253 Ford — Lost Communication With Accessory Protocol Interface Module
- U0253 Lincoln — Lost Communication With Accessory Protocol Interface Module
- U0253 Mercury — Lost Communication With Accessory Protocol Interface Module
Frequently Asked Questions about U0253 Code
1. What does OBDII code U0253 mean?
U0253 indicates a loss of communication between the Accessory Protocol Interface Module (APIM) and other control modules in the vehicle.
2. What are common symptoms of code U0253?
Symptoms may include an unresponsive infotainment system, malfunctioning touch screen, loss of Bluetooth or navigation, and potentially no audio output.
3. What causes code U0253 to appear?
Common causes include a faulty APIM, damaged wiring or connectors, software glitches, or issues with the CAN (Controller Area Network) communication bus.
4. How can I diagnose code U0253?
Start by checking the APIM for power and ground connections, inspect the CAN bus wiring for damage or loose connections, and scan for additional codes that may point to related issues.
5. Can a software update fix code U0253?
Yes, if the issue is related to a software glitch in the APIM, a firmware update from the manufacturer might resolve the problem.
6. Is it safe to drive with code U0253?
Yes, but you may lose access to certain features like navigation, Bluetooth, or audio, which could be inconvenient or distracting.
7. How do I repair code U0253?
Repairs may include replacing or reprogramming the APIM, repairing damaged wiring or connectors, or addressing related CAN bus issues.
8. Can a dead battery cause code U0253?
Yes, a dead or weak battery can disrupt communication on the CAN bus and lead to this code.
9. How much does it cost to fix code U0253?
Repair costs vary widely, from $100 for simple wiring repairs to over $1,000 if the APIM needs replacement and reprogramming.
10. Does disconnecting the battery clear code U0253?
Disconnecting the battery may temporarily clear the code, but the issue will return if the underlying problem isn’t resolved.
Discuss the causes and fixes for U0253 OBDII Code
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Hello, I have a Ford Fusion 2010 and that first happened was that the A/C didn't work, I changed the evaporator temperature sensor, I bought the original part, but the failure code was erased but nothing happen, by the way, when I connect the scanner by the active test, the a/c start to run, and go all day in normal work, very cold. When I stop the engine and come out the keys, for a 30 minutes, never start againg. I connect the scanner and doesn't show codes, suppose everything is good, but doesn't run
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