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 EQUIPMENTNAVIGATION SYSTEMTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSNAVIGATION SYSTEM (FOR DVD)DVD IMAGE SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) Hybrid
DVD Image Signal Circuit Between Navigation ECU and Multi-Display
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) HybridSECTION DVD Image Signal Circuit Between Navigation ECU and Multi-Display
NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for DVD): DVD Image Signal Circuit between Navigation ECU and Multi-display
- DVD Image Signal Circuit between Navigation ECU and Multi-display
DESCRIPTION
This circuit sends a DVD image signal from the display and navigation module display to the multi-display.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK HARNESS AND CONNECTOR
(a) Disconnect the H61 display and navigation module display connector.
(b) Disconnect the H20 multi-media module wire connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. INSPECT MULTI-MEDIA MODULE WIRE
(a) Disconnect the H20 multi-media module wire connector.
(b) Disconnect the DC1 multi-media module wire connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE MULTI-MEDIA MODULE WIRE Disassembly
OK -- Continue to next step.
3. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY (DVD IMAGE SIGNAL)
(a) Reconnect the H61 display and navigation module display connector.
(b) Check the waveform according to the table below.
(c) Oscilloscope waveform
HINT
The video waveform changes according to the image output from the display and navigation module display to the multi-display, but the synchronization signal does not change.
Text in Illustration
NG -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Removal
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.