C0880

Control Module Voltage Reference

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–222 (est.)

Symptoms

Check Engine Light Is On
Unstable engine operation
Power dips
Problems with security systems

Causes

Open or short circuit in wiring harness
Malfunction of the control module (ECU, BCM)
Poor contact in connectors
Contact corrosion
Power problems (dead battery, faulty generator)

How to Fix

Check the voltage at the control module connectors
Inspect the wiring harness for damage
Check contacts in connectors for oxidation
Test the control module
Replace module or wiring harness if necessary

Related codes

P0562 P0563 P0697