U3502

Control Module Input Power A Circuit High

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Power dips
Check Engine Light Is On
Malfunctions of electronic systems
Disabling control modules

Causes

Faulty generator
Problems with the voltage regulator
Short circuit in power supply
Oxidized or damaged contacts
Control module malfunction

How to Fix

Check the generator voltage at idle and under load
Check voltage regulator
Inspect the power circuit for damage
Check contacts and connections in the power supply circuit
Test the control module

Related codes

U3501 U3503 U3500