Invalid Data Received From Body Control Module
The U0422 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Body Control Module. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $50 - $500 (usually the fault behind the bad data, not the network itself)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- Check Engine or related warning light on
- Functions relying on data from the Body Control Module may act erratically
- Often intermittent
Probable Causes (Ranked by Likelihood)
- The Body Control Module is transmitting, but its data is implausible - often a failing sensor feeding it High
- Intermittent wiring fault corrupting messages Moderate
- Software mismatch after service Moderate
- Failing Body Control Module Low
Common Fixes by Vehicle
What techs usually find when diagnosing U0422 on specific vehicles — tap your vehicle for the fix and the exact part:
2007-2014 Ford F-150/Expedition moderate DIY
U0422 (invalid data from BCM) on Ford trucks typically means the BCM is reporting impossible values -- often a battery voltage reading out of range or a sensor input that has gone erratic. The most common cause is low battery voltage or a failing battery. Load-test the battery first. If the battery is fine, check BCM power and ground. FORScan can read live BCM data to pinpoint which signal is invalid.
Labor: 1-2 hours2003-2014 Chevrolet Silverado/GMC Sierra moderate DIY
GM truck U0422 often indicates the BCM is sending odd data because of a low battery or bad ground. Clean the BCM grounds under the driver-side dash. Verify battery voltage at the BCM (pin 2) is within 0.2V of battery. If all grounds and power are clean and the code persists, the BCM may need replacement and programming via a GM scan tool or Tech2Win.
Labor: 1-2 hours2005-2015 Dodge Ram 1500 hard DIY
Ram U0422 is often tied to TIPM issues since the TIPM contains BCM functions on many years. A water-damaged or failing TIPM reports invalid data and sets U0422. Open the TIPM, inspect for corrosion, and replace if damaged. Aftermarket rebuilt TIPMs run $300-500. Programming is required after TIPM replacement.
Labor: 2-4 hoursFrequently Asked Questions
What does U0422 mean?
U0422 means this module IS communicating with the Body Control Module, but the data it sends fails plausibility checks. Diagnose the source module first.
Can I keep driving with U0422?
Usually yes for a short period. The affected function may be degraded, and intermittent wiring faults tend to worsen - diagnose soon.
Should I replace the module for U0422?
Not first. Most communication codes are power, ground, fuse, or wiring problems. Replace the module only after those test good - modules are expensive and often require programming.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
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Scan the Body Control Module itself - the invalid data usually traces to a fault code stored there.
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Fix any codes in the source module first; this code often clears with them.
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Check for recent programming or battery-disconnect events.
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If the source module is clean, monitor the specific data value flagged and follow the OEM pinpoint test.
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Commonly Affected Vehicles
- All OBD-II vehicles - network (U) codes are standardized across makes
Related Codes
See All Codes & Fixes for Your Vehicle
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