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01
A Comprehensive Guide to EGR: Function, Faults, and Fixes
•
02
Mechanic's Secret: The Foolproof Way to Identify Oxygen Sen…
•
03
What Mechanics Check First When Fuel Usage Suddenly Spikes
•
04
Steering Wheel Feels Loose? Uneven Tire Wear? Don't Ignore …
•
05
Understanding the Engine Block: A Comprehensive Guide
•
06
Why Your Car Revs High But Doesn’t Go Fast
•
07
Free VIN Check: Top 10 Free Sites to Get a Used Car's Histo…
•
08
Maintaining and Troubleshooting Diesel Particulate Filters …
•
09
The Real Reason SUVs Are Dominating the Market
•
10
Can Motor Oil Substitute Transmission Fluid? A Comprehensiv…
•
01
A Comprehensive Guide to EGR: Function, Faults, and Fixes
•
02
Mechanic's Secret: The Foolproof Way to Identify Oxygen Sen…
•
03
What Mechanics Check First When Fuel Usage Suddenly Spikes
•
04
Steering Wheel Feels Loose? Uneven Tire Wear? Don't Ignore …
•
05
Understanding the Engine Block: A Comprehensive Guide
•
06
Why Your Car Revs High But Doesn’t Go Fast
•
07
Free VIN Check: Top 10 Free Sites to Get a Used Car's Histo…
•
08
Maintaining and Troubleshooting Diesel Particulate Filters …
•
09
The Real Reason SUVs Are Dominating the Market
•
10
Can Motor Oil Substitute Transmission Fluid? A Comprehensiv…
•
DTC codes
/ U30xx · Network wiring and bus faults
U30xx · Network wiring and bus faults
Search
U3000
Control Module
Network
U3001
Control Module Improper Shutdown Performance
Network
U3002
Vehicle Identification Number
Network
U3003
Battery Voltage
Network
U3004
Accessory Power Relay
Network
U3005
Retained Accessory Power
Network
U3006
Control Module Input Power A Circuit/Open
Network
U3007
Control Module Input Power B Circuit/Open
Network
U3008
Control Module Ground A
Network
U3009
Control Module Ground B
Network
U300A
Ignition Switch
Network
U300B
Ignition Input Accessory/On/Start
Network
U300C
Ignition Input Off/On/Start
Network
U300D
Ignition Input On/Start
Network
U300E
Ignition Input On
Network
U300F
Ignition Input Accessory
Network
U3010
Ignition Input Start
Network
U3011
Ignition Input Off
Network
U3012
Control Module Improper Wake-up Performance
Network
U3013
Control Module Input Power C Circuit/Open
Network
U3014
Control Module Input Power D Circuit/Open
Network
U3015
Control Module Ground C
Network
U3016
Control Module Ground D
Network
U3017
Control Module Timer/Clock Performance
Network
U3018
Control Module Input Power Circuit A/B Correlation
Network
U3019
Control Module Input Power Circuit B/C Correlation
Network
U301A
Control Module Wake-up Circuit A/Open
Network
U301B
Control Module Wake-up Circuit A Low
Network
U301C
Control Module Wake-up Circuit A High
Network
U301D
Control Module Wake-up Circuit A Performance
Network
U301E
Control Module Wake-up Circuit B/Open
Network
U301F
Control Module Wake-up Circuit B Low
Network
U3020
Control Module Wake-up Circuit B High
Network
U3021
Control Module Wake-up Circuit B Performance
Network
U3022
Ignition Input Accessory/Off
Network
U3023
Control Module Input Power Circuit A - Ignition Input On/Start Circuit Correlation
Network
U3024
Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation
Network
U3025
Control Module A Disable Circuit/Open
Network
U3026
Control Module A Disable Circuit Low
Network
U3027
Control Module A Disable Circuit High
Network
U3028
Control Module A Disable Feedback Circuit
Network
U3029
Control Module A Disable Feedback Circuit Low
Network
U302A
Control Module A Disable Feedback Circuit High
Network
U302B
Ignition Output Accessory/On/Start
Network
U302C
Ignition Output Off/On/Start
Network
U302D
Ignition Output On/Start
Network
U302E
Ignition Output On
Network
U302F
Ignition Output Accessory
Network
U3030
Ignition Output Start
Network
U3031
Ignition Output Off
Network
U3032
Ignition Output Accessory/Off
Network
U3033
Control Module Security Certificate Missing/Invalid
Network
U3034
Communication Authentication Key/Certificate Missing/Invalid
Network
U3035
Communication Authentication Signal Invalid Data
Network
U3036
Communication Authentication Signal Performance
Network
E
F
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