P25B8

Auxiliary Ignition Switch On/Start Position Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$6–33 (est.)

Symptoms

Problems starting the engine
Incorrect operation of electrical equipment
Check Engine Light Is On
Intermittent operation of vehicle systems
Loss of power when turning the key

Causes

Faulty ignition relay
Open or short circuit in wiring
Problems with the ignition switch
Contact corrosion
Engine control unit malfunction

How to Fix

Check the condition of the ignition relay
Inspect the wiring for damage
Check the ignition switch contacts
Test the voltage in the circuit
If necessary, replace faulty components

Related codes

P25B9 P25BA P25BB