Code result
U045C
Invalid Data Received From Power Steering Control Module B
High severity
What it means
A receiving module detected implausible data from power steering control module B. Steer-assist torque or motor current values fail plausibility checks and are rejected; assist may reduce or fail to a fail-safe map.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Module internal fault or sensor input drift
highOne of the most commonly reported causes for this code — check this first.
Software version mismatch after replacement
mediumA plausible cause — test and verify before replacing parts.
Gateway module routing CAN messages incorrectly
lowLess common, but worth ruling out after the more likely causes.
Related help
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