Medium Speed CAN Communication Bus

Description

General malfunction on the medium-speed CAN bus. This bus typically handles body electronics and comfort modules.

Symptoms

• Body electronics malfunctions
• Power window issues
• Interior lighting problems
• Door lock malfunctions

Common Causes

• Medium-speed CAN wiring damage
• Module failure on MSCAN bus
• Termination resistor failure
• Connector corrosion

Diagnostic Steps

1. Measure MSCAN bus resistance
2. Scope MSCAN signals
3. Isolate modules on medium-speed bus
4. Check for aftermarket accessories on MSCAN

Repair Notes

Diagnose similarly to high-speed CAN but on the medium-speed bus circuit.

Related Codes

Other Network Codes

U0010 on Other Vehicles

Common Questions

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