Without Scan Tool

DTC CHECK

HINT: Turn the ignition switch ON, wait 5 seconds, and then check the DTC.

a. Current DTC check
With the ignition switch ON, press and hold the PTT button, and then press the VOL+ button 5 times within 15 seconds.

b. Historic DTC check
With the ignition switch ON, press and hold the PTT button, and then press the VOL- button 5 times within 15 seconds.