For 1990-2009 cars

# SERVICE MAN. UPDATE-SEC. 1B&8A (A/C: COMPRESSOR CONTROLS)

#### SUBJECT: ELECTRICAL DIAGNOSIS A/C: COMPRESSOR CONTROLS

#### MODELS/YEARS: 1992-93 CUTLASS CIERA/CUTLASS CRUISER

The following revisions should be made to Section 1B of the 1992-93 Cutlass Ciera/Cutlass Cruiser Service Manual.

#### 1992 Model Year And Page:

1B-7 Under the title "Relays and Switches", the paragraph "High-Pressure Compressor Cut-Out Switch" is for the 3.3L Engine Only.

1B-7 Under the title that reads "Pressure Cycling Switch", it should indicate that it is for the 3.3L Engine Only.

1B-45 The paragraph that reads "Low-Pressure Compressor Cut-Out Switch" should read "High-Pressure Compressor Cut-Out Switch" (3.3L Engine Only).

1B-45 The paragraph that reads "High-Pressure Compressor Cut-Out Switch" should read "High/Low- Pressure Compressor Cut-Out Switch" (2.5L Engine Only).

#### 1993 Model Year And Page:

1B-6 Under the title "Relays and Switches", disregard the paragraph "Low-Pressure Cut-Out Switch" (LG7) and refer to "Pressure Cycling Switch" (LG7 Only).

1B-45 The paragraph that reads "Pressure Cycling Switch" should indicate that it is for the 3.3L Engine Only.

1B-46 The paragraph that reads "Low-Pressure Compressor Cut-Out Switch" should read "High-Pressure Compressor Cut-Out Switch" (3.3L Engine Only).

Section 8A. Cell 64 Electrical diagnosis (Air Conditioning: Compressor Controls V6 (VIN N) A/C Low Pressure Cut-Out Switch) - Incorrect component name and specification reading.

The A/C Low Pressure Cut-Out Switch is now called A/C Pressure Cycling Switch, its specification should read as follows:

Opens below 172 kPa (25 PSI) Closed above 317 kPa (46 PSI)

Please update your respective service manual accordingly.

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.