C0890

Device Voltage Reference Output 3 Circuit Voltage

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Incorrect operation of systems related to the reference voltage (for example, ABS, ESP)
Reduced efficiency of vehicle electronic systems

Causes

Open or short circuit in wiring harness
Poor contact in connectors
Contact corrosion
Control module malfunction (e.g. ABS, ESP)
Problems with power or circuit ground

How to Fix

Check the wiring harness for breaks and short circuits
Inspect connectors for corrosion or damage
Check the voltage in the reference circuit
Scan other modules for related errors
If necessary, replace the faulty module or wiring harness

Related codes

C0891 C0892 U0121