THE CODE DIRECTORY
Diagnostic code references — Page 110.
Browse canonical reference entries. Each definition keeps its own source and vehicle-applicability limits.
Generic OBD-II
U0238
Lost Communication With Digital Audio Control Module D
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Generic OBD-II
U0239
Lost Communication With Entrapment Control Module A
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Generic OBD-II
U023A
Lost Communication With Image Processing Module A
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Generic OBD-II
U023B
Lost Communication With Image Processing Module B
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Generic OBD-II
U023C
Lost Communication With Image Processing Module C
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Generic OBD-II
U023D
Lost Communication With Front Distance Range Sensor - Left
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Generic OBD-II
U023E
Lost Communication With Front Distance Range Sensor - Right
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Generic OBD-II
U0240
Lost Communication With Entrapment Control Module B
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Generic OBD-II
U0241
Lost Communication With Headlamp Control Module A
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Generic OBD-II
U0242
Lost Communication With Headlamp Control Module B
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Generic OBD-II
U0243
Lost Communication With Parking Assist Control Module B
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Generic OBD-II
U0244
Lost Communication With Running Board Control Module A
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Generic OBD-II
U0245
Lost Communication With Entertainment Control Module - Front
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Generic OBD-II
U0246
Lost Communication With Seat Control Module E
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Generic OBD-II
U0247
Lost Communication With Seat Control Module F
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Generic OBD-II
U0248
Lost Communication With Remote Accessory Module
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Generic OBD-II
U0249
Lost Communication With Entertainment Control Module - Rear B
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Generic OBD-II
U024A
Lost Communication With Interior Lighting Control Module A
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Generic OBD-II
U024B
Lost Communication With Seat Control Module G
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Generic OBD-II
U024C
Lost Communication With Seat Control Module H
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Generic OBD-II
U024D
Lost Communication With Seat Control Module J
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Generic OBD-II
U024E
Lost Communication With Side Obstacle Detection Control Module C
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Generic OBD-II
U024F
Lost Communication With Side Obstacle Detection Control Module D
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Generic OBD-II
U0250
Lost Communication With Impact Classification System Module
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Generic OBD-II
U0251
Lost Communication With Running Board Control Module B
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Generic OBD-II
U0252
Lost Communication With Lighting Control Module - Rear B
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Generic OBD-II
U0253
Lost Communication With Accessory Protocol Interface Module
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Generic OBD-II
U0254
Lost Communication With Remote Start Module
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Generic OBD-II
U0255
Lost Communication With Front Display Interface Module
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Generic OBD-II
U0256
Lost Communication With Front Controls Interface Module A
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Generic OBD-II
U0257
Lost Communication With Front Controls/Display Interface Module
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Generic OBD-II
U0258
Lost Communication With Radio Transceiver
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Generic OBD-II
U0259
Lost Communication With Special Purpose Vehicle Control Module A
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Generic OBD-II
U025A
Lost Communication With Special Purpose Vehicle Control Module B
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Generic OBD-II
U025B
Lost Communication With Special Purpose Vehicle Control Module C
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Generic OBD-II
U025C
Lost Communication With Special Purpose Vehicle Control Module D
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Generic OBD-II
U025D
Lost Communication With Front Controls Interface Module B
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Generic OBD-II
U025E
Lost Communication With Electronic Brake Booster Control Module A
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Generic OBD-II
U025F
Lost Communication With Electronic Brake Booster Control Module B
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Generic OBD-II
U0260
Lost Communication With Seat Control Switch Module A
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Generic OBD-II
U0261
Lost Communication With Seat Control Switch Module B
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Generic OBD-II
U0262
Lost Communication With Audio Amplifier B
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Generic OBD-II
U0263
Lost Communication With Speech Recognition Module
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Generic OBD-II
U0264
Lost Communication With Camera Module - Rear
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Generic OBD-II
U0265
Lost Communication With Image Processing Sensor A
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Generic OBD-II
U0266
Lost Communication With Image Processing Sensor B
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Generic OBD-II
U0267
Lost Communication With Image Processing Sensor C
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Generic OBD-II
U0268
Lost Communication With Image Processing Sensor D
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Generic OBD-II
U0269
Lost Communication With Image Processing Sensor E
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Generic OBD-II
U026A
Lost Communication With Image Processing Sensor F
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Generic OBD-II
U026B
Lost Communication With Image Processing Sensor G
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Generic OBD-II
U026C
Lost Communication With Image Processing Sensor H
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Generic OBD-II
U026D
Lost Communication With Image Processing Sensor I
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Generic OBD-II
U026E
Lost Communication With Image Processing Sensor J
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Generic OBD-II
U026F
Lost Communication With Image Processing Sensor K
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Generic OBD-II
U0270
Lost Communication With Image Processing Sensor L
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Generic OBD-II
U0271
Lost Communication With Seat Control Switch Module C
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Generic OBD-II
U0272
Lost Communication With Seat Control Switch Module D
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Generic OBD-II
U0273
Lost Communication With Lighting Driver Control Module “A”
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Generic OBD-II
U0274
Lost Communication With Lighting Driver Control Module “B”
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Generic OBD-II
U0275
Lost Communication With Lighting Driver Control Module “C”
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Generic OBD-II
U0276
Lost Communication With Lighting Driver Control Module “D”
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Generic OBD-II
U0277
Lost Communication With Seat Control Module K
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Generic OBD-II
U0278
Lost Communication With Seat Control Module L
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Generic OBD-II
U0279
Lost Communication with Haptic Control Module
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Generic OBD-II
U027A
Lost Communication With Battery Charger Control Module C
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Generic OBD-II
U027B
Lost Communication with Battery Charger Control Module D
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Generic OBD-II
U027C
Lost Communication With Off-Board Charger Control Module
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Generic OBD-II
U0284
Lost Communication With Active Grille Air Shutter Module A
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Generic OBD-II
U0285
Lost Communication With Active Grille Air Shutter Module B
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Generic OBD-II
U0286
Lost Communication With Radiator Anti Tamper Device
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Generic OBD-II
U0287
Lost Communication With Transmission Fluid Pump Module A
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Generic OBD-II
U0288
Lost Communication With DC/AC Converter Control Module A
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Generic OBD-II
U0289
Lost Communication With DC/AC Converter Control Module B
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Generic OBD-II
U028A
Lost Communication With Transmission Fluid Pump Module B
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Generic OBD-II
U028B
Lost Communication With Active Grille Air Shutter Module C
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Generic OBD-II
U028C
Lost Communication With Active Grille Air Shutter Module D
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Generic OBD-II
U028D
Lost Communication with Active Aerodynamic Feature Control Module A
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Generic OBD-II
U028E
Lost Communication with Active Aerodynamic Feature Control Module B
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Generic OBD-II
U028F
Lost Communication with Active Aerodynamic Feature Control Module C
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Generic OBD-II
U0290
Lost Communication with Active Aerodynamic Feature Control Module D
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Generic OBD-II
U0291
Lost Communication With Gear Shift Control Module B
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Generic OBD-II
U0292
Lost Communication With Drive Motor Control Module B
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Generic OBD-II
U0293
Lost Communication With Hybrid/EV Powertrain Control Module
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Generic OBD-II
U0294
Lost Communication With Powertrain Control Monitor Module
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Generic OBD-II
U0295
Lost Communication With AC/AC Converter Control Module
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Generic OBD-II
U0296
Lost Communication With AC/DC Converter Control Module A
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Generic OBD-II
U0297
Lost Communication With AC/DC Converter Control Module B
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Generic OBD-II
U0298
Lost Communication With DC/DC Converter Control Module A
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Generic OBD-II
U0299
Lost Communication With DC/DC Converter Control Module B
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Generic OBD-II
U029A
Lost Communication With Hybrid/EV Battery Pack Sensor Module
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Generic OBD-II
U029B
Lost Communication With Drive Motor Control Module C
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Generic OBD-II
U029C
Lost Communication With Drive Motor Control Module D
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Generic OBD-II
U029D
Lost Communication With NOx Sensor A
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Generic OBD-II
U029E
Lost Communication With NOx Sensor B
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Generic OBD-II
U029F
Lost Communication With Evaporative Emission System Leak Detection Control Module
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Generic OBD-II
U02A0
Invalid Data Received From Hybrid/EV Battery Interface Control Module D
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Generic OBD-II
U02A1
Lost Communication With NOx Sensor C
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Generic OBD-II
U02A2
Lost Communication With Reductant Quality Module
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Generic OBD-II
U02A3
Lost Communication With Particulate Matter Sensor
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These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.