Innova 3120d, Owner'S Manual, Page: 92 / 131

GM OBD1 Systems
YOUR VEHICLE’S COMPUTER SYSTEM - VEHICLES COVERED
90 3120d
YOUR VEHICLE'S COMPUTER SYSTEM
Today's vehicles are equipped with computer self-testing abilities that
can locate problems in your vehicle and store them as Diagnostic
Trouble Codes (DTC's) in the vehicle's onboard computer. The
Diagnostic Tool allows you access to the computer's memory and
retrieves the DTC's.
VEHICLES COVERED
This Diagnostic Tool may be used to retrieve engine service codes from
most General Motors (GM) domestic cars and trucks (EXCEPT Geo,
Nova, Saturn and Sprint).
Model
Year Make Model
Buick Century, Electra, Electra Wagon, Estate Wagon,
Le Sabre, Le Sabre Wagon, Park Avenue, Reatta,
Regal, Grand National, Riviera, Roadmaster,
Skyhawk, Skylark, Somerset
Cadillac De Ville, El Dorado, Fleetwood, Seville
Chevrolet Beretta, Camaro, Caprice, Cavalier, Celebrity,
Chevette, Citation, Corsica, Corvette, El Camino,
Impala, Lumina, Monte Carlo
Oldsmobile Achieva, Calais, Custom Cruiser, Cutlass Calais,
Ciera, Cutlass Cruiser, Cruiser Wagon, Cutlass
Supreme, Supreme Classic, Delta 88, Eighty-
eight, Firenze, Ninety-eight, Omega, Toronado,
Touring Sedan, Trofeo
Pontiac 6000, 6000 STE, Bonneville, Fiero, Firebird,
Grand Am, Grand Prix, J 2000, Lemans,
J Parisienne, Phoenix, Safari, Safari Wagon,
Sunbird, T 1000
1982-93
Trucks and
Vans All one ton capacity or less with gas engines
Buick Roadmaster 5.7 liter
Chevrolet Camaro 3.4 liter/5.7 liter, Caprice 5.7 liter,
Caprice 5.7 liter, Cavalier 3.1 liter,
Lumina 3.1 liter
Pontiac Firebird 3.4 liter/5.7 liter, Sunbird 2.0 liter/
3.1 liter
1994
Trucks and
Vans All one ton capacity or less with gas engines
Chevrolet Caprice 4.3 liter 1995
Trucks and
Vans All one ton capacity or less with gas engines
(EXCEPT S/T Series vehicles)