Error code
OBD2 U0407
OBD2U0407
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Invalid Data Received From Glow Plug Control Module.
Severity
moderateCan drive, but performance may be affected and there could be engine starting difficulties.
Summary
U0407 indicates that the glow plug control module is sending invalid data to the engine's computer. This issue affects the communication between the glow plug system and the vehicle’s main computer.
Common Causes
- Faulty glow plug control module
- Communication issues with the glow plug system
Fixes
- Replace the glow plug control module.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
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- U0406Invalid Data Received From Fuel Injector Control Module
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- U0409Invalid Data Received From Alternative Fuel Control Module
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