ACC Radar Module Communication Fault
2011-2011 Mitsubishi Lancer 2.4L I4
The 2011 Mitsubishi Lancer is equipped with a 2.4L inline-4 engine. Below you'll find detailed c0411 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Loss of CAN bus communication with the ACC radar module.
Symptoms
- ACC disabled
- Multiple driver assist warnings
- Forward collision alert unavailable
Common Causes
- CAN wiring fault to radar module
- Module connector disconnected
- Radar module power loss
- CAN bus termination issue at module
Diagnostic Steps
- Check CAN communication to radar module
- Inspect module connector
- Verify power and ground at module
- Check CAN bus wiring continuity
- Look for U-codes related to radar module
Repair Notes
Repair CAN bus wiring or connector. Replace module if communication chip has failed.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0411 on Other Vehicles
Mitsubishi Colt JP
2010-2010 1.3L I4 4A90
Mitsubishi Colt JP
2010-2010 1.5L I4 4A91
Mitsubishi Colt JP
2011-2011 1.3L I4 4A90
Mitsubishi Colt JP
2011-2011 1.5L I4 4A91
Mitsubishi Colt JP
2012-2012 1.3L I4 4A90
Mitsubishi Colt JP
2012-2012 1.5L I4 4A91
Mitsubishi Delica D:5
2019-2019 2.2L I4 Turbo Diesel 4N14
Mitsubishi Delica D:5
2020-2020 2.2L I4 Turbo Diesel 4N14
Common Questions
What does code C0411 mean on a 2011-2011 Mitsubishi Lancer?
C0411 stands for "ACC Radar Module Communication Fault". Loss of CAN bus communication with the ACC radar module.
What are the symptoms of C0411 on a Mitsubishi Lancer?
Common symptoms of C0411 include: ACC disabled, Multiple driver assist warnings, Forward collision alert unavailable.
What causes C0411 on a 2011-2011 Mitsubishi Lancer?
Common causes of C0411 include: CAN wiring fault to radar module, Module connector disconnected, Radar module power loss, CAN bus termination issue at module.
Last updated: March 2026