Code result
U0448
Invalid Data Received from Gateway B
Moderate severity
What it means
A second gateway component (or sub-gateway) is forwarding implausible data. Cross-segment functions misbehave until the affected gateway is reset or reflashed.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Gateway internally failing
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.
CAN terminating resistor (120 Ω) drifted out of spec
lowLess common, but worth ruling out after the more likely causes.
Related help
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