P25B9

Auxiliary Ignition Switch On/Start Position Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Difficulty starting the engine
engine stalls after starting
blinking lights on the dashboard
unstable operation of the ignition system

Causes

short circuit to positive in the circuit
ignition relay malfunction
wiring harness damage
poor contact in connectors
ignition switch malfunction

How to Fix

Check the voltage in the ignition circuit
Inspect relays and fuses
Check the condition of the wiring harness
Test the ignition switch
Replace damaged components

Related codes

P25B8 P25BA P25BB