U0405-84: Invalid Data Received From Cruise Control Module - Signal below allowable range: Action
- Vehicle Conditions to enable DTC Logging Strategy
- Turn ignition on and wait for a few seconds. Active cruise control is not required
- Prioritized Checks to Perform
- Check Cruise Control Module for related Diagnostic Trouble Codes and refer to relevant DTC index
- Check communications bus network for related Diagnostic Trouble Codes and refer to relevant DTC index
- Check speed control buttons are not jammed/contaminated/damaged. Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Refer to the electrical circuit diagrams and check Cruise Control Module power and ground circuits for short circuit to ground, circuit short circuit to power
- Using the Jaguar Land Rover approved diagnostic equipment check "Network Overview" for off bus control modules
- Using the Jaguar Land Rover approved diagnostic equipment, clear all stored Diagnostic Trouble Codes and retest