U0200

Lost Communication With Door Control Module B

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Power windows do not work on a certain door
Problems with central locking
Check Engine light comes on
Errors in other door-related systems

Causes

Open or short circuit in the communication circuit
Door control module B fault
Module power problems
Corrosion of contacts or connectors
Damage to the CAN bus

How to Fix

Check the integrity of the wiring harness to the module
Check the power supply and ground of the module
Inspect connectors for corrosion
Scan other modules for communication errors
Replace door control module B if necessary

Related codes

U0201 U0202 U0203