pontiac Workshop Repair Guides

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A/C - No Difference Between Low/Medium BLower Speed|Page 4760 > < A/C - No Difference Between Low/Medium BLower Speed
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Blower Motor Resistor: Customer Interest
A/C - No Difference Between Low/Medium BLower Speed

Bulletin Number:

90-8-24

Reference Number:

078106R

Publish Date:

6/90

Subject:

NO BLOWER SPEED CHANGE LOW TO MEDIUM (CORRECT WIRING)

Models

ALL 89-90 SUNBIRD AND 1988-89 GRAND AM

Affected:

MODELS 2.0L TURBO, ALL W/C41

CONDITION:

There have been some customer comments of no medium blower speed on standard heater (C-41) equipped vehicles. The blower functions normally on
high speed but there is no apparent difference in air flow between low and medium speed.

CAUSE:

The 51 circuit and the 52 circuit wires at the blower motor resistor, cavities D and B, are reversed.

CORRECTION:

Refer to service manual 8A-60-0 for proper wiring procedure.

WARRANTY INFORMATION:

Labor Operation Number:

N6310

Labor Time

:

0.5 Hour

Trouble Code

:

92

A/C - No Difference Between Low/Medium BLower Speed|Page 4760 > < A/C - No Difference Between Low/Medium BLower Speed