U3501

Control Module Input Power A Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–56 (est.)

Symptoms

Unstable engine operation
Intermittent failures of electronic systems
Check Engine Light Is On
Problems starting the engine
Malfunctions of control modules

Causes

Wiring harness damage
Oxidation or loosening of contacts
Power relay fault
Alternator or battery problems
Blown fuse

How to Fix

Check battery and generator voltage
Inspect the wiring harness for damage
Check the condition of contacts and terminals
Check and replace fuses if necessary
Check the operation of the power relay

Related codes

U3500 U3502 U3503