Network fault codes
Communication faults — a module that stopped answering on the CAN bus, or sent implausible data. Often a symptom of a power or wiring problem rather than a failed module.
49 documented codes across 1 functional group .
By what part of the vehicle
The ones we see most
- U0416 Invalid data received from vehicle dynamics control module
- U0100 Lost communication with ECM/PCM A
- U0401 Invalid data received from ECM/PCM A
- U0121 Lost communication with ABS control module
- U029D Not individually documented
- U0167 Lost communication with immobiliser control module
- U0155 Lost communication with instrument panel cluster
- U2105 Not individually documented
- U0064 Not individually documented
- U201F Not individually documented
- U0252 Not individually documented
- U0422 Not individually documented
- U0484 Not individually documented
- U0019 Low speed CAN communication bus
- U0103 Lost communication with gear shift module
- U0415 Invalid data received from ABS control module
- U0428 Invalid data received from steering angle sensor module
- U0114 Not individually documented
- U0151 Not individually documented
- U016B Not individually documented
- U2139 Not individually documented
- U0102 Lost communication with transfer case control module
- U0132 Lost communication with ride level control module
- U0164 Lost communication with HVAC control module
FAQ
Frequently asked questions
How do I run a diagnosis?
Select the vehicle on Start, click the Diagnostic card and choose New diagnostic. Fill in the description, the error codes and the mileage, then click Analyze.
Learn more: Diagnostic (vehicle-first start), Diagnostic form: description, error codes and mileage
Do I have to type the codes from my scan tool?
No. Click the camera button next to Error codes and take or choose a photo (JPEG or PNG) of the scan tool's screen; WrenchLane reads the codes and their descriptions into the form. You can also speak them with the microphone.
Learn more: OBD reader photo scan (fault codes from a photo), Voice input for the problem description
Are the public fault code pages built from my diagnostics?
They are built from anonymised, aggregated diagnostics run in WrenchLane; no workshop, customer or vehicle can be identified. Each fault code page shows how often the code was seen across those diagnostics and in how many separate workshops.
Learn more: Fault code pages on wrenchlane.com (fault-code cluster)
Put a code against a real car
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