Code result
U0325
Software Incompatibility with Auxiliary Heater Control Module
Moderate severity
What it means
The auxiliary heater module is running incompatible software. The pre-heater may not start or aborts operation early.
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
Incompatible flash version
highOne of the most commonly reported causes for this code — check this first.
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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