Lexus NX: Diagnostic Trouble Code Chart
Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Lighting System (for Single Beam Headlight) / Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Lighting System| DTC No. | Detection Item | Link |
|---|---|---|
| B1244 | Light Sensor Circuit Malfunction | |
| B2430 | LED Headlight LH Circuit Malfunction | |
| B2431 | LED Headlight RH Circuit Malfunction | |
| U012587 | Lost Communication with Multi-axis Acceleration Sensor Module Missing Message | |
| U012987 | Lost Communication with Brake System Control Module Missing Message | |
| U014087 | Lost Communication with Body Control Module Missing Message | |
| U023587 | Lost Communication with Cruise Control Front Distance Range Sensor Missing Message | |
| U029387 | Lost Communication With Hybrid Powertrain Control Module Missing Message | |
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Vehicle Control History
VEHICLE CONTROL HISTORY CHECK THE VEHICLE CONTROL HISTORY (LIGHTING SYSTEM) HINT:
The vehicle control history data (lighting system) stores the history of the reject function and system protection
Light Sensor Circuit Malfunction (B1244)
DESCRIPTION The automatic light control sensor detects ambient light, converts it into an electrical signal and outputs it to the main body ECU (multiplex network body ECU). The main body ECU (multipl
LED Headlight LH Circuit Malfunction (B2430,B2431)
DESCRIPTION The illumination of the low beam headlights is controlled by the main body ECU (multiplex network body ECU). When the headlights are turned on, the main body ECU (multiplex network body EC
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Removal
REMOVAL PROCEDURE 1. REMOVE CONSOLE ARMREST ASSEMBLY Click here 2. REMOVE UPPER NO. 2 CONSOLE PANEL GARNISH Click here 3. REMOVE INSTRUMENT SIDE PANEL LH Click here 4. REMOVE NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY Click here 5. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-AS
Engine Starter Communication Malfunction (B2779)
DESCRIPTION If the remote engine start ECU does not respond to the certification ECU (smart key ECU assembly) or the remote engine start ID is not registered*, this DTC is stored. If communication between the remote engine start ECU and the certification ECU (smart key ECU assembly) is established a
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