For 1990-2009 cars

# INTERMITTENT ECM CONNECTION MAY BE WEAK TERMINAL GRIP

#### MODELS AFFECTED: 1988 CIMARRONS 1988-1989 DE VILLES, FLEETWOODS, ELDORADOS, SEVELLES, AND ALLANTES

Cadillac Service Information Manuals sometime advise technicians to check for intermittent open circuits. This bulletin contains a procedure to inspect Micro-Pack female terminals. The female terminal may be oversized in the internal diameter causing intermittent open or high resistance connections.

To check a Micro-Pack terminal, first visually inspect the terminal using a flashlight, refer to Figure 1. Check to be sure that the terminal is properly retained in the connector body and check the crimp and wire retention. After visual inspection, use a .95mm pin gage to check the terminal inside diameter. Insert the gage into the front of the terminal.

- The female terminal should grip the pin gage securely.

- If the gage will drop through the terminal under its own weight, or if there is only a light drag on the gage from the terminal, the terminal should be repaired or replaced.

If the female terminal does not grip properly, replace the terminal with P/N 12020757. General directions on wiring repair and terminal replacement are shown in section 8A of the Service Information Manual.

#### NOTE: Never front probe a Micro-Pack terminal with anything other than a .95mm pin gage or the connector test adapter kit (tool J-35616). Front probing can spread out the terminal and cause an intermittent open circuit.

Carline Devices with Micro-Pack Terminals ------- ---------------------------------- DeVilles/Fleetwoods ECM Broughams None Eldorados/Sevilles ECM, Auto Door Lock, BCM, CCDIC, Central Power Supply, Radio Cimarrons ECM Allantes ECM, BCM, CCDIC, Central Power Supply, Instrument Panel Cluster, Radio Head, Tape Player, Radio Chassis

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.