Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Land Rover LR4 BaseFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Index DTC: Adaptive Speed Control Module (ASCM) -- LR4/L319
- Diagnostic Trouble Code Index DTC: Adaptive Speed Control Module (ASCM)
- Description And Operation
- Adaptive Speed Control Module (ASCM)
- DTC B1A84-81: Car Configuration Data - Invalid serial data received
- DTC C1A67-54: Forward Looking Sensor - Missing calibration
- DTC C1A67-87: Forward Looking Sensor - Missing message
- DTC C1A67-96: Forward Looking Sensor - Component internal failure
- DTC C1A67-97: Forward Looking Sensor - Component or system operation obstructed or blocked
- DTC C1A67-98: Forward Looking Sensor - Component or system over temperature
- DTC P174E-29: Output Shaft Speed/ABS Wheel Speed Correlation - Signal invalid
- DTC U0001-88: High Speed CAN Communication Bus - Bus off
- DTC U0100-00: Lost Communication With ECM/PCM "A" - No sub type information
- DTC U0101-00: Lost Communication with TCM - No sub type information
- DTC U0103-00: Lost Communication With Gear Shift Control Module A - No sub type information
- DTC U0121-00: Lost Communication With Anti-Lock Brake System (ABS) Control Module - No sub type information
- DTC U0128-00: Lost Communication With Park Brake Control Module - No sub type information
- DTC U0151-00: Lost Communication With Restraints Control Module - No sub type information
- DTC U0155-00: Lost Communication With Instrument Panel Cluster (IPC) Control Module - No sub type information
- DTC U017E-00: Lost Communication With Seatbelt Pretensioner Module "A" - No sub type information
- DTC U017F-00: Lost Communication With Seatbelt Pretensioner Module "B" - No sub type information
- DTC U0300-00: Internal Control Module Software Incompatibility - No sub type information
- DTC U0300-55: Internal Control Module Software Incompatibility - Not configured
- DTC U0305-4A: Software Incompatibility with Cruise Control Module - Incorrect component installed
- DTC U0401-00: Invalid Data Received From ECM/PCM - No sub type information
- DTC U0401-67: Invalid Data Received From ECM/PCM - Signal incorrect after event
- DTC U0401-81: Invalid Data Received From ECM/PCM - Invalid serial data received
- DTC U0415-53: Invalid Data Received From Anti-Lock Brake System (ABS) Control Module - Deactivated
- DTC U0415-81: Invalid Data Received From Anti-Lock Brake System Control Module - Invalid serial data received
- DTC U0417-67: Invalid Data Received From Park Brake Control Module - Signal incorrect after event
- DTC U0417-81: Invalid Data Received From Park Brake Control Module - Invalid serial data received
- DTC U0418-68: Invalid Data Received From Brake System Control Module - Event information
- DTC U0421-00: Invalid Data Received from Suspension Control Module A - No sub type information
- DTC U0421-81: Invalid Data Received from Suspension Control Module A - Invalid serial data received
- DTC U0422-00: Invalid Data Received from Body Control Module A - No sub type information
- DTC U0423-81: Invalid Data Received From Instrument Panel Control Module - Invalid serial data received
- DTC U1A00-88: Private Communication Network - Bus off
- DTC U1A14-49: CAN Initialization Failure - Internal electronic failure
- DTC U1A4B-16: Control Module Processor B - Circuit voltage below threshold
- DTC U2101-00: Control Module Configuration Incompatible - No sub type information
- DTC U2107-00: Collision Mitigation By Braking - No sub type information
- DTC U3000-41: Control Module - General checksum failure
- DTC U3000-42: Control Module - General memory failure
- DTC U3000-44: Control Module data - Memory failure
- DTC U3000-49: Control Module - Internal electronic failure
- DTC U3000-63: Control Module - Circuit/component protection time-out
- DTC U3000-96: Control Module - Component internal failure
- DTC U3003-16: Battery Voltage - Circuit voltage below threshold
- DTC U3003-17: Battery Voltage - Circuit voltage above threshold
- DTC U3003-62: Battery Voltage - Signal compare failure
- Description And Operation
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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