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DTC 34-10 Error in Picture Circuit (EMV); DTC 34-11 No Current in Back-light Error (EMV); DTC 34-12 Excess Current in Back-light Error (EMV): Description

WARNING: This page is about a different car, the 2006 Lexus GS 430 and 2006 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE CHART

DTC No. DTC Detection Condition Trouble Area
34-10 Error in power supply system for picture circuit (abnormal voltage) is detected Multi-display
34-11 Decline in power output from inverter circuit for back-light
34-12 Excess power output from inverter circuit for back-light
  1. REPLACE MULTI-DISPLAY 

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