U0024

Low Speed CAN Communication Bus (-) Open

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–56 (est.)

Symptoms

Check Engine Light Is On
Certain car systems do not work (climate control, airbags, etc.)
Errors in other modules
Intermittent operation of electronics
Problems with diagnostics via OBD-II

Causes

Wire break in the CAN circuit (-)
Short circuit in CAN bus
Damage to the module connector
Malfunction of one of the network modules
Contact corrosion

How to Fix

Check the integrity of the CAN bus wires (-)
Inspect the module connectors
Check resistance in CAN circuit
Check the voltage on the CAN bus
Disable the modules one by one to find the faulty one

Related codes

U0010 U0023 U0025