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.
DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms | DTC detection condition | |||
|---|---|---|---|---|---|
| (Trouble diagnosis content) | [Malfunction type] | ||||
| C1A1C | 14 | CONTROL UNIT (Control unit) | [CIRC SHORT TO GRND OR OPEN] | Diagnosis condition | When engine is running |
| Signal (terminal) | - | ||||
| Threshold | ADAS control unit 2 internal malfunction | ||||
| Diagnosis delay time | 1 second or less | ||||
POSSIBLE CAUSE
ADAS control unit 2
FAIL-SAFE
The following systems are canceled:
- Vehicle-to-vehicle distance control mode
- Conventional (fixed speed) cruise control mode
- Automatic Emergency Braking (AEB)
- Intelligent Forward Collision Warning (I-FCW)
- Lane Departure Warning (LDW)
- Blind Spot Warning (BSW)
- Rear Cross Traffic Alert (RCTA)
- Rear Automatic Braking (RAB)
- Traffic Sign Recognition (TSR)
- Intelligent Drive Alertness (I-DA)
DTC CONFIRMATION PROCEDURE
- PERFORM DTC CONFIRMATION PROCEDURE
CONSULT
- Start the engine.
- Perform "All DTC Reading".
- Check if "C1A1C-14" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS 2".
Is "C1A1C-14" detected as the current malfunction?
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Refer to Diagnosis Procedure .
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To check malfunction symptom before repair: Refer to Intermittent Incident .
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Confirmation after repair: Inspection End
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.