Lexus NX: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Power Door Lock Control System

DTC No.

Detection Item

Link

B1243

GSW Terminal Circuit Malfunction

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 GSW Terminal Circuit Malfunction (B1243)

DESCRIPTION If the collision door lock release function does not operate normally, or an open or short in the GSW input circuit of the main body ECU (multiplex network body ECU) is detected, DTC B1243

 All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder

DESCRIPTION The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch assembly and driver door key cylinder lock or unlock switch signals from the

 All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch

DESCRIPTION The main body ECU (multiplex network body ECU) receives switch signals from the door control switch assembly on the front passenger door and activates the door lock motor on each door acco

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 Display does not Dim when Light Control Switch is Turned ON

DESCRIPTION If the navigation system is turned on with the light control switch in the tail or head position, before AVC-LAN communication is established, the multi-display assembly dims according to the illumination signal received via a direct line. After AVC-LAN communication is established, the

 Inspection

INSPECTION PROCEDURE 1. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY LH (a) Check the operation of the lumbar support adjuster assembly LH. (1) Apply auxiliary battery voltage to the lumbar support adjuster assembly LH connector, and check that the lumbar support adjuster assembly LH operates smoothl

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