Code result
U0197
Lost Communication with Hands-Free Phone Control Module
Moderate severity
What it means
The infotainment system cannot reach the hands-free phone controller. Bluetooth telephony, address book sync and emergency call features may be unavailable.
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
Hands-free module unpowered
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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