Procedures to Run Quick Test:

- Transmission in park
- Emergency brake set
- Electrical accessories off (lights, A/C, defrost, etc) (If A/C is on, error code 67 will be set)
- Engine at operating temperature
- For more information refer to Engine/Emissions Diagnostic Shop Manual Section 14.

NOTE: SELF TEST CAN BE ENTERED ONLY ONCE EACH TIME THE KEY IS TURNED ON. TO REENTER SELF-TEST, TURN KEY OFF AND WAIT 10 SECONDS.