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.
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HOMESERVICE MANUALSLEXUS2012CT 200H L4-1.8L (2ZR-FXE) HYBRIDREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONU CODE CHARTSU0155NAVIGATION SYSTEM (FOR DVD)
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) Hybrid
Navigation System (For DVD)
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) HybridSECTION Navigation System (For DVD)
NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for DVD): U0073, U0155, U0164, U0293, U1110: Control Module Communication Bus Off
U1110 - Lost Communication with Clearance Warning ECU
DESCRIPTION
These DTCs are stored when a malfunction occurs in the CAN communication circuit.
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC
(a) Clear the DTCs Navigation System (For DVD).
(b) Recheck for DTCs and check if the same DTC is output again.
OK:
No DTCs are output.
NG -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
RENDER: 1.0x
NO RELATED
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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.