Charging System: Testing and Inspection
Accessing CodesWith Check Engine Lamp
To start the function, cycle ignition switch ON-OFF-ON-OFF-ON within 5 seconds and any stored fault code will appear. Check engine lamp will display the code by flashing on and off. There is a short pause between flashes and a longer pause between digits. All codes displayed are 2 digit numbers with a 4 second pause between codes. The lamp will flash until all codes are displayed then 55 (end test) will appear.
With DRB II Tool
1. Connect DRBII test tool or equivalent, to electrical connector located under the hood.
2. Turn ignition switch to the RUN position, then turn test tool ON.
3. Depress YES key to select model year, engine and diagnostic test mode.
4. Record all fault codes, then erase codes.
5. Start engine and allow to idle for 7 minutes.
6. Raise engine speed above 1500 RPM for 30 seconds.
7. Turn engine off, then put system in diagnostic test mode.
8. Record all codes.