C1177
Control Area Network-Local Area Network Converter Control Unit Battery Voltage Power Supply Circuit
C1177 is an OBD-II diagnostic trouble code meaning: Control Area Network-Local Area Network Converter Control Unit Battery Voltage Power Supply Circuit. Common causes: broken or damaged wires in the power circuit, short circuit in the circuit. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Problems with data transfer between control units
- Unstable operation of the vehicle's electronic systems
Causes
- Broken or damaged wires in the power circuit
- Short circuit in the circuit
- Malfunction of the CAN-LAN converter module
- Battery or alternator problems
How to Fix
- Check the voltage on the battery and generator
- Inspect the wiring harness for damage
- Check the integrity of the power supply circuit of the CAN-LAN converter module
- Replace the CAN-LAN converter module if necessary
Related codes
FAQ
What does the C1177 code mean?
C1177 is an OBD-II diagnostic trouble code that indicates: Control Area Network-Local Area Network Converter Control Unit Battery Voltage Power Supply Circuit
What causes a C1177 error code?
The most common causes of C1177 include: Broken or damaged wires in the power circuit; Short circuit in the circuit; Malfunction of the CAN-LAN converter module; Battery or alternator problems.
How do I fix a C1177 diagnostic trouble code?
To fix C1177: Check the voltage on the battery and generator. Inspect the wiring harness for damage. Check the integrity of the power supply circuit of the CAN-LAN converter module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1177?
Limited driving only, diagnose soon
How much does it cost to fix C1177?
The estimated repair cost for C1177 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat