ECM Code EO85: Throttle Body Service Required: Action:

ECM will set Code EO85 and turn on SERVICE ENGINE SOON light.

Fig 1: ECM Code EO85 TPS Connector

Fig 2: ECM Code EO85 Flow Chart

NOTE: Record radio station selection and memory seat positions. Disconnect negative battery cable for 10 seconds, and reconnect. Block drive wheels, set parking brake and disable the automatic release. Run engine for 10 minutes continuously with coolant temperature above 80 degrees. Place transmission in drive and run at idle with A/C off for 3 minutes and with A/C on for 3 minutes to relearn TPS position, reset radio, seats and clock.

For THROTTLE BODY SERVICE see REMOVE/INSTALL/OVERHAUL