EFI SYSTEM FAULT DETECTOR (RED BOX)

In response to dealer requests for improved diagnostic capability for past model Cadillacs equipped with Electronic Fuel Injection (EFI), a new design test device (red box) was recently developed. Late last year, Cadillac dealers were offered the opportunity to purchase this tester through Cadillac at a special introductory price. Since that time, the tester has proven its effectiveness and special arrangements have again been made to allow dealers to purchase this time-saving device at a substantial saving direct from the manufacturer.

The Cadillac "EFI System Default Detector" is designed to electronically monitor and analyze the various subsystem functions of the EFI system and display a tell-tale light when a malfunction is detected. This allows the service technician to quickly direct his diagnosis to a particular circuit. Subsystems analyzed include the:

o Speed Sensor Circuit o HEI System o Fuel Pressure System o Injector Groups o Injector Richness Controls o Throttle Position Switch (TPS) Circuit

The tester was designed and developed by Cadillac/General Motors and is being manufactured and distributed by the Owatonna Tool Company. It is very compact and comes complete with storage case, all adaptive wiring, and detailed operating instructions. This tester will complement all equipment now being used and has a latching memory to provide improved diagnostic capability for dealer technicians. Dealers currently report a significant reduction in diagnostic time as a result of the memory capabilities of this tester.

While the list price of this unit is $525, Owatonna Tool Company has agreed to supply testers to Cadillac dealers for a limited time at a special 15% off price of $448. This offer is good until May 15, 1981.

To order your tester, fill out the order form on the attached brochure.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.