What it means
A control module has stopped receiving expected messages from side obstacle detection control module D. The code identifies the communication loss; related obstacle-detection functions may be unavailable.
How it works
Side obstacle detection control module D sends network messages used by related detection functions. This code sets when another control module no longer receives the expected messages from module D; it indicates a communication problem and does not alone identify a failed detection sensor.
Common causes
Most likely first.
- Bus wiring open or shorted
- Module without power or ground
- Module failed
Symptoms
- Related side obstacle-detection functions may be unavailable
- A warning may appear depending on the vehicle
How to diagnose it
- Scan all modules and preserve freeze-frame and network information, checking for other communication or side obstacle-detection codes.
- Note the warnings and determine which functions associated with module D are unavailable, testing only while parked and safely.
- Inspect module D's connector and nearby network harness for damage, moisture, corrosion, or loose terminals.
- Verify module D's power and ground according to the manufacturer's procedure.
- Test the bus wiring to module D for opens or shorts using the vehicle wiring diagram and specified method.
- If the power, ground, and network circuit are sound, perform the manufacturer's communication checks before concluding module D is defective.
Common fixes
- Secure a loose connector at module D.
- Repair damaged or corroded bus wiring and connector terminals to module D.
- Restore module D's power feed or ground if faulty.
- Replace module D only after its supplies and communication wiring pass testing.
Can I keep driving?
Assume the related side obstacle-detection functions are unavailable and do not rely on them while driving or parking. Use mirrors and direct observation, and arrange diagnosis if the warning persists.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.