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 DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTRADIO, STEREO, AND COMPACT DISCTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSAUDIO AND VISUAL SYSTEM (W/O NAVIGATION SYSTEM)MULTI-MEDIA INTERFACE ECU POWER SOURCE CIRCUIT
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) Hybrid
Multi-Media Interface ECU Power Source Circuit
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) HybridSECTION Multi-Media Interface ECU Power Source Circuit
AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (w/o Navigation System): Multi-media Interface ECU Power Source Circuit
- Multi-media Interface ECU Power Source Circuit
DESCRIPTION
This circuit provides power to the multi-media interface ECU assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. INSPECT MULTI-MEDIA INTERFACE ECU ASSEMBLY
(a) Disconnect the multi-media interface ECU assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
NG -- CHECK HARNESS AND CONNECTOR
OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table
2. CHECK HARNESS AND CONNECTOR
(a) Disconnect the radio receiver assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table
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.