Operation CHARM: Car repair manuals for everyone.
Home >> Buick >> 1994 >> Roadmaster V8-265 4.3L >> Repair and Diagnosis >> Brakes and Traction Control >> Antilock Brakes / Traction Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Mode Description >> Mode F1: Diagnostic Trouble Code History
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Mode F1: Diagnostic Trouble Code History

TEST MODES
In this mode, diagnostic trouble code history is displayed. These data include how many ignition cycles since the diagnostic trouble code first occurred, brake switch status, vehicle speed and ABS state when fault occurred. Up to three diagnostic trouble codes are included in the ABS history data.
pro multis · About Operation CHARM