U029F Ford Code - Lost Communication With Evaporative Emission System Leak Detection Control Module
Quick Answer
Network Diagnostic Trouble Code (DTC) concerns occur during module-to-module communication. Common causes include Invalid data network concerns, data is transferred within the normal inter-module message, but contains known invalid data, The transmitting module logs a DTC related to the invalid data concern. 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
- U029F Ford indicates Lost Communication With Evaporative Emission System Leak Detection Control Module.
- Common causes
- Common causes include Invalid data network concerns, data is transferred within the normal inter-module message, but contains known invalid data, The transmitting module logs a DTC related to the invalid data concern.
- 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 U029F Ford Description
What are the Possible Causes of the DTC U029F Ford?
- Invalid data network concerns
- data is transferred within the normal inter-module message, but contains known invalid data. The transmitting module logs a DTC related to the invalid data concern.
- Missing message network concerns
- missing message concerns are logged by the module upon failure to receive a message from another module within a defined retry period.
How to Fix the DTC U029F Ford?
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 U029F Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80β$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about U029F Ford Code
No Frequently Asked Questions about U029F Ford Code found.
Discuss the causes and fixes for U029F Ford OBDII Code
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What model and year is your vehicle? besides the code, do you have any other symptoms?
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Unfortunately I haven't had that problem before, but the code means that at some point the Powertrain Control Module (PCM) lost communication with the Natural Vacuum Leak Detection Module (NVLDM). Either you have a wire problem from the NVLDM to the PCM, or there is a problem with the NVLDM it self. Here is the loation of the NVLDM. Start by checking the NVLDM for damage.

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