LIGHTING SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Lighting System
DTC No. Detection Item Note Link
B1244 Light Sensor Circuit -

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B2414 Steering Position Sensor -

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B242C Right Headlight ECU Malfunction -

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B242D Left Headlight ECU Malfunction -

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B242E Open in IG Circuit -

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B2439 Headlamp LH Circuit -

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B243A Headlamp RH Circuit -

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B243B LED Wiring for High Beam LH Circuit w/ Adaptive High Beam System

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B243C LED Wiring for High Beam RH Circuit w/ Adaptive High Beam System

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B243D Left Low Beam Fan Malfunction -

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B243E Right Low Beam Fan Malfunction -

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U0073 Control Module Communication Bus OFF -

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U0100 Lost Communication with ECM / PCM "A" w/ Adaptive High Beam System

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U0101 Lost Communication with TCM -

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U0126 Lost Communication with Steering Angle Sensor Module -

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U0129 Lost Communication with Brake System Control Module -

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U0142 Lost Communication with Body Control Module "B" -

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U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module -

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U023A Lost Communication With Image Processing Module "A" w/ Adaptive High Beam System

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U0242 Lost Communication With Headlamp Control Module "B" -

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U0293 Lost Communication with Hybrid Vehicle Control System -

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U1000 CAN Communication Failure (Message Registry) -

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