U CODE FAMILY
Network code references — Page 3.
Communication and network diagnostic references. A communication code does not identify a failed module by itself.
Generic OBD-II
U0157
Lost Communication With Information Center B
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Generic OBD-II
U0158
Lost Communication With Head Up Display
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Generic OBD-II
U0159
Lost Communication With Parking Assist Control Module A
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Generic OBD-II
U015A
Lost Communication With Anti-Lock Brake System (ABS) Control Module B
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Generic OBD-II
U015B
Lost Communication With Power Steering Control Module “B”
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Generic OBD-II
U015C
Lost Communication With Automated Driving System Control Module A
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Generic OBD-II
U015D
Lost Communication With Automated Driving System Control Module B
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Generic OBD-II
U015E
Lost Communication With Automated Driving System Interface Module “A”
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Generic OBD-II
U015F
Lost Communication With Automated Driving System Interface Module “B
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Generic OBD-II
U0160
Lost Communication With Audible Alert Control Module
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Generic OBD-II
U0161
Lost Communication With Compass Module
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Generic OBD-II
U0162
Lost Communication With Navigation Display Module
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Generic OBD-II
U0163
Lost Communication With Navigation Control Module
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Generic OBD-II
U0164
Lost Communication With HVAC Control Module
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Generic OBD-II
U0165
Lost Communication With HVAC Control Module - Rear
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Generic OBD-II
U0166
Lost Communication With Auxiliary Heater Control Module
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Generic OBD-II
U0167
Lost Communication With Vehicle Immobilizer Control Module
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Generic OBD-II
U0168
Lost Communication With Vehicle Security Control Module
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Generic OBD-II
U0169
Lost Communication With Sunroof Control Module
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Generic OBD-II
U016A
Lost Communication With Global Positioning System Module
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Generic OBD-II
U016B
Lost Communication With A/C Compressor Control Module
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Generic OBD-II
U016C
Lost Communication With Fuel Pump Control Module B
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Generic OBD-II
U016D
Lost Communication With Exhaust Gas Sensor Module B
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Generic OBD-II
U0170
Lost Communication With Restraints System Sensor A
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Generic OBD-II
U0171
Lost Communication With Restraints System Sensor B
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Generic OBD-II
U0172
Lost Communication With Restraints System Sensor C
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Generic OBD-II
U0173
Lost Communication With Restraints System Sensor D
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Generic OBD-II
U0174
Lost Communication With Restraints System Sensor E
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Generic OBD-II
U0175
Lost Communication With Restraints System Sensor F
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Generic OBD-II
U0176
Lost Communication With Restraints System Sensor G
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Generic OBD-II
U0177
Lost Communication With Restraints System Sensor H
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Generic OBD-II
U0178
Lost Communication With Restraints System Sensor I
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Generic OBD-II
U0179
Lost Communication With Restraints System Sensor J
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Generic OBD-II
U017A
Lost Communication With Restraints System Sensor K
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Generic OBD-II
U017B
Lost Communication With Restraints System Sensor L
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Generic OBD-II
U017C
Lost Communication With Restraints System Sensor M
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Generic OBD-II
U017D
Lost Communication With Restraints System Sensor N
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Generic OBD-II
U017E
Lost Communication With Seat Belt Pretensioner Module A
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Generic OBD-II
U017F
Lost Communication With Seat Belt Pretensioner Module B
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Generic OBD-II
U0180
Lost Communication With Automatic Lighting Control Module
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Generic OBD-II
U0181
Lost Communication With Headlamp Leveling Control Module A
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Generic OBD-II
U0182
Lost Communication With Lighting Control Module - Front
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Generic OBD-II
U0183
Lost Communication With Lighting Control Module - Rear A
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Generic OBD-II
U0184
Lost Communication With Radio
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Generic OBD-II
U0185
Lost Communication With Antenna Control Module
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Generic OBD-II
U0186
Lost Communication With Audio Amplifier A
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Generic OBD-II
U0187
Lost Communication With Digital Disc Player/Changer Module A
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Generic OBD-II
U0188
Lost Communication With Digital Disc Player/Changer Module B
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Generic OBD-II
U0189
Lost Communication With Digital Disc Player/Changer Module C
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Generic OBD-II
U018A
Lost Communication With Headlamp Leveling Control Module B
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Generic OBD-II
U0190
Lost Communication With Digital Disc Player/Changer Module D
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Generic OBD-II
U0191
Lost Communication With Television
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Generic OBD-II
U0192
Lost Communication With Personal Computer
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Generic OBD-II
U0193
Lost Communication With Digital Audio Control Module A
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Generic OBD-II
U0194
Lost Communication With Digital Audio Control Module B
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Generic OBD-II
U0195
Lost Communication With Subscription Entertainment Receiver Module
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Generic OBD-II
U0196
Lost Communication With Entertainment Control Module - Rear A
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Generic OBD-II
U0197
Lost Communication With Telephone Control Module
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Generic OBD-II
U0198
Lost Communication With Telematic Control Module
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Generic OBD-II
U0199
Lost Communication With Door Control Module A
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Generic OBD-II
U019A
Lost Communication With Tachograph Module
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Generic OBD-II
U019B
Lost Communication With Battery Charger Control Module A
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Generic OBD-II
U019C
Lost Communication With Glow Plug Control Module 2
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Generic OBD-II
U019D
Lost Communication With Direct Ozone Reduction Catalyst Temperature Sensor
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Generic OBD-II
U019E
Lost Communication With Transmission Range Control Module
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Generic OBD-II
U019F
Lost Communication With Engine Coolant Pump Control Module
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Generic OBD-II
U01A0
Lost Communication With Hybrid/EV Battery Interface Control Module A
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Generic OBD-II
U01A1
Lost Communication With Hybrid/EV Battery Interface Control Module B
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Generic OBD-II
U01A2
Lost Communication With Hybrid/EV Battery Interface Control Module C
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Generic OBD-II
U01A3
Lost Communication With Hybrid/EV Battery Interface Control Module D
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Generic OBD-II
U01A4
Lost Communication With Hybrid/EV Battery Interface Control Module E
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Generic OBD-II
U01A5
Lost Communication With Hybrid/EV Battery Interface Control Module F
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Generic OBD-II
U01A6
Lost Communication With Hybrid/EV Battery Interface Control Module G
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Generic OBD-II
U01A7
Lost Communication With Hybrid/EV Battery Interface Control Module H
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Generic OBD-II
U01A8
Lost Communication With Hybrid/EV Battery Interface Control Module I
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Generic OBD-II
U01A9
Lost Communication With Hybrid/EV Battery Interface Control Module J
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Generic OBD-II
U01AA
Lost Communication With Hybrid/EV Battery Interface Control Module K
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Generic OBD-II
U01AB
Lost Communication With Hybrid/EV Battery Interface Control Module L
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Generic OBD-II
U01AC
Lost Communication With Hybrid/EV Battery Interface Control Module M
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Generic OBD-II
U01AD
Lost Communication With Hybrid/EV Battery Interface Control Module N
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Generic OBD-II
U01AE
Lost Communication With Hybrid/EV Battery Interface Control Module O
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Generic OBD-II
U01AF
Lost Communication With Hybrid/EV Battery Interface Control Module P
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Generic OBD-II
U01B0
Lost Communication With Battery Monitor Module
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Generic OBD-II
U01B1
Lost Communication With Particulate Matter Sensor B
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Generic OBD-II
U01B2
Lost Communication With Planetary Gear Set Control Module
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Generic OBD-II
U01B3
Lost Communication With Brake Blending Actuator
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Generic OBD-II
U01B4
Lost Communication With Brake System Control Module B
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Generic OBD-II
U01B5
Lost Communication With Catalyst Heater Control Module
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Generic OBD-II
U01B6
Lost Communication With Fuel Heater Control Module
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Generic OBD-II
U01B7
Lost Communication With Switch Input Module “A”
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Generic OBD-II
U01B8
Lost Communication With Switch Input Module “B”
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Generic OBD-II
U01B9
Lost Communication With Switch Input Module “C”
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Generic OBD-II
U01BA
Lost Communication With Park Lock/Pawl Control Module
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Generic OBD-II
U01BB
Lost Communication With Battery Charger Control Module B
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Generic OBD-II
U01BC
Lost Communication With Charge Air Cooler Coolant Pump B
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Generic OBD-II
U01BD
Lost Communication With DC/DC Converter Control Module C
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Generic OBD-II
U01BE
Lost Communication with Drive Motor A Clutch Actuator
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Generic OBD-II
U01BF
Lost Communication with Battery Management Control Module
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Generic OBD-II
U0200
Lost Communication With Door Control Module B
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Generic OBD-II
U0201
Lost Communication With Door Control Module C
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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.