With Message Center

1. Using the electronic instrument cluster, hold in all three buttons (select, checkout and reset buttons) at the same time.
2. To conduct the Key-ON/Engine-OFF Self-test portion, hold in all three buttons and place ignition switch in the ON position, then release the three buttons.
3. To conduct the Key-ON/Engine-Running Self-test portion, hold in all three buttons, then place the ignition switch in the RUN position and release the three buttons.
4. Press select button three times.
5. To initiate the Self-test, using a jumper wire, jump self-test connectors STI to GIG RTN.
6. A base readout of 4255 indicates that the key on engine off self-test has been entered.
7. A base readout of 4030 indicates that the engine running self-test has been entered.
8. The service code output will be the right three digits displayed. Service pass code is 4011.
9. To exit the Self-test, turn the ignition switch to the off position.