Notes On Intermittents

If Code EO17 is a history code; start engine and enter diagnostics. Operate engine at fast idle until "AUTO" closed loop status light is turned on. Observe parameter ED34 while manipulating CKT 912 and 413 wiring. If parameter ED34 stops fluctuating and stays fixed at 0.45 volts, repair intermittent open circuit. Check CKT 413 ground to engine for proper installation (clean, tight, star washer installed). Ground for CKT 413 is attached to the rear of the right hand cylinder head.