Error U007C on Dodge все модели
Control Module Communication Bus J Off
Code
U007C
Vehicle
Dodge все модели
Category
Network
Severity
🔴 HighSymptoms
- The Check Engine Light or Other Warnings Is On
- Failure of individual vehicle systems (climate control, multimedia, etc.)
- Problems starting the engine
- Incorrect operation of the dashboard
- Lost connection with diagnostic equipment
Causes
- Open or short circuit in the CAN bus wiring
- Corrosion or oxidation of contacts in connectors
- Malfunction of one of the electronic modules
- Damage to CAN bus terminators
- Problems with module power supply
How to Fix
- Visual inspection of the CAN bus wiring for damage
- Checking the CAN bus resistance (should be about 60 ohms between CAN-H and CAN-L)
- Checking the voltage on the CAN bus (2.5-3.5V on CAN-H and 1.5-2.5V on CAN-L)
- Disabling modules one by one to find the faulty one
- Checking the integrity of resistance terminators
FAQ
Можно ли временно устранить неисправность?
Нет, требуется профессиональная диагностика и ремонт CAN-шины.
Какой провод отвечает за CAN-шину?
Обычно это два провода с маркировкой CAN-H (оранжевый) и CAN-L (оранжевый с чёрной полосой).