No Codes/Engine On

NO TROUBLE CODES/ENGINE ON

Read Memory Connector

Test Mode Connector

Check Engine Light

O2 monitor Lamp

Disconnect

Disconnect

Off

O2 Monitor

Connect

Disconnect

Blinking

Off

Disconnect

Connect

Blinking

⁽¹⁾

⁽¹⁾	O2 monitor will display vehicle specification code. See D-CHEC K MODE in CODE CHARTS for vehicle specification codes.