DTC B2510: Steering Wheel Controls HVAC Key Stuck: Description
Instrument Panel Cluster (IPC) monitors steering wheel control keys input at IPC connector C2, terminal B11 (Dark Blue wire). See Figure . IPC interprets button commands, and sends appropriate message on class 2 serial data line. DTC B2510 will set when IPC determines that steering wheel touch control key for fan up (phone), fan down (recall), temperature up (send) or temperature down (end) is active for longer than 5 seconds (stuck). When DTC is set, IPC will ignore switch command.