Manufacturer Code Charts: 8: 8.5
8.5 CLEAR CODES/PULL CODES- Key "OFF."
- Reconnect the battery ground cable.
- Verify all connectors are installed.
- Locate and disconnect the diagnostic connector from its mating half (Circuits 571 [BK/O] and 483 [R]).
- Key "ON."
- Begin the diagnostic trouble code flashout by connecting Circuit 571 (BK/O) to a chassis ground for at least 1 second.
- Observe and count code.
Is Diagnostic Trouble Code 16 present?
> Yes
Go to Drive Test Code 16. Drive Test 1 Code 16
> No
If Code 8, Go to Pinpoint Test 8.6. 8.6
If a different code is retrieved, go to the appropriate pinpoint test for the code.