1. Park with the driver’s side closest
to the service station pump.
2. Open the fuel fill door by pulling
on the handle located under the
lower left corner of the dashboard.
3. Remove th
Your vehicle’s onboard diagnostic
system will detect a loose or missing
fuel fill cap as an evaporative system
leak. The first time a leak is detected
a ‘‘CHECK FUEL CAP’’ message
1. Park the vehicle, and set the
parking brake. Pull the hood
release handle located under the
lower left corner of the dashboard.
The hood will pop up slightly.
2. Reach in between the ho
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information.
1. Turn the ignition switch ON (Ill.
2. Check APP SENSOR A in the DATA LIST with the
HDS.
Is there about 0.2 V or less?
YES-Go to step 3.
NO-Intermittent failure, t
Electronic Control System
The functions of the fuel and emission control systems are managed by the
powertrain control module (PCM).
Self-diagnosis
The PCM detects a failure of a signal from a sensor or from another control
unit and stores a Temporary DTC or a DTC.
Depending on the failure, a DTC