DTC C1A67-81: Forward Looking Sensor - Invalid serial data received: Action

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2015 Jaguar XKR-S, 2015 Jaguar XKR, 2015 Jaguar XK, 2014 Jaguar XKR-S, and 2014 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

Clear DTC and retest, if DTC remains suspect speed control sensor. Check and install a new sensor as required, refer to the new module/component installation note at the top of the DTC Index: SPEED CONTROL MODULE [CCM]