Land Rover Discovery No-Crank: Proving an Offline TCU Before Programming

A three-stage intermittent no-crank case that separates two convincing false fixes from an offline telematics module with good power, ground and CAN.

A three-stage intermittent no-crank case that separates two convincing false fixes from an offline telematics module with good power, ground and CAN.

A no-code Silverado diagnosis that uses the Neutral-start comparison and a redundant park/neutral signal to isolate the internal range switch.