Lexus NX: System Diagram

SYSTEM DIAGRAM

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 How To Proceed With Troubleshooting

PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CONFIRM PROBLEM SYMPTOMS NEXT 3. CUSTOMER PROBLEM ANALYSIS (a) Check if the vehicle has be

 On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. CHECK AUXILIARY BATTERY (a) Check that the auxiliary battery cables are connected to the correct terminals. HINT: If they are not, connect them properly. (b) Check t

 Networking

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 Room Oscillator does not Recognize Key

DESCRIPTION If code verification cannot be performed in the vehicle interior, there may be problems with the communication between the vehicle (No. 1 indoor electrical key antenna assembly (front floor), No. 2 indoor electrical key antenna assembly (rear floor) or No. 3 indoor electrical key antenna

 New Key cannot be Registered

DESCRIPTION If an electrical key transmitter sub-assembly could not be newly registered, wave interference or a malfunction of the certification ECU (smart key ECU assembly), electrical key transmitter sub-assembly, ID code box (immobiliser code ECU), steering lock ECU (steering lock actuator assemb

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