OBD-II Code · Network

U0010

Medium Speed CAN Communication Bus

Severity

medium

Worth booking. It costs fuel, emissions or comfort until it is fixed.

Can you drive it

Only if running normally

A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety.

Indicative cost (USD)

$100–$1,500

Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.

Medium-speed CAN bus fault.

How a shop works this

Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.

Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then work the likely-causes list in the order shown.
That order is what a shop checks first for this code — wiring and connections before the component they run to, because a connector costs nothing to inspect and is a common answer.

If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.

Common symptoms

Body electronics intermittent

Likely causes

Shorted wiresMost common
Failed module

Read the full diagnostic procedureU0010 is a Medium Speed CAN Communication Bus fault, typically the 125 kbps body/comfort bus on Chrysler products (CAN-C interior bus), the Mid-Speed…+

U0010 is a Medium Speed CAN Communication Bus fault, typically the 125 kbps body/comfort bus on Chrysler products (CAN-C interior bus), the Mid-Speed CAN on Ford, or equivalent on GM (single-wire GMLAN at 33.3 kbps fills this role).

The medium-speed bus carries lower-priority traffic

HVAC, audio, lighting controls, door modules.
Cheapest-first: medium-speed buses do not always use the standard DLC pin 6/14, so consult the wiring diagram for the specific MS-CAN pins (often DLC pins 3 and 11 on Ford, or routed through the gateway only).
Many MS-CAN buses use only a single 120-ohm terminator (not the 60-ohm parallel pair of HS-CAN), so the resistance check expectation changes; verify against the service manual.
Check power and ground at each MS-CAN module (BCM, HVAC head, audio amplifier, driver door module) before condemning the bus itself.
Caveat: single-wire CAN (GMLAN low-speed) is especially vulnerable to ground shorts from a single corroded door connector or aftermarket window switch, and these are easy to find by disconnecting modules one at a time and re-checking the bus.

Vehicle-specific patterns2007-2014 Dodge/Jeep with CAN-C/CAN-IHS gets U0010 family codes from TIPM gateway failures or from rear-liftgate harness chafe on Grand Cherokee WK2.+

2007-2014Dodge/Jeep with CAN-C/CAN-IHS gets U0010 family codes from TIPM gateway failures or from rear-liftgate harness chafe on Grand Cherokee WK2.
2005-2012Ford with MS-CAN sees U0010 from door-module water intrusion at the driver's door speaker harness.
2003-2010GM trucks with single-wire GMLAN see U0010 equivalents from corroded body harness boots at the A-pillar.
2007-2013BMW with K-CAN (33 kbps single-wire) sees U0010-style faults from FRM (Footwell Module) failures.

Estimated repair$70 to $1200.

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U0010 — frequently asked

What does a U0010 code mean?

Medium-speed CAN bus fault.

What causes a U0010 code?

Common causes: Shorted wires; Failed module.

What are the symptoms of a U0010 code?

Typical symptoms: Body electronics intermittent.

Is it safe to drive with a U0010 code?

Only if running normally. A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety. Estimated repair: $100-$1,500.

How do I diagnose a U0010 code?

Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed. 1. Note every code that is set, not just this one. 2. Read the freeze frame — the conditions the fault was recorded under. 3. Confirm the fault is current rather than history. 4. Then work the likely-causes list in the order shown.

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