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Diagnostic trouble code U0106 indicates: Lost Communication With Glow Plug Control Module 1. It was set by your vehicle's onboard diagnostics system and will typically keep the check engine light on until it's addressed.
Which ECUs store U0106 is read from your file during analysis. DTC Removal is available on supported ECUs for these makes:
Upload your ECU file and DTC Doctor will detect this code (and any others) automatically, then remove it for good — no dealer visit, no guesswork.
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