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1988 Chevrolet ASTRO 4.3L Blower Control
Blower will run in high speed only. Voltage test at switch
& resistor as follows: Blower on med. at resister, Dk. blue
= 12.2 Lt. blue = 12.2 Tan = 12.2 yellow = .9 At switch on
med. Brown = 12.4 Lt. blue = 12.4 Orange = 0 Tan = 12.4
FIX posted 9/18/1998
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Message Closed w/FIX
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Related Documents & Media 
| VIN | 1GHDM15Z4J |
| Engine | 4.3 L / 6 cyl |
| Affected | Blower Control |
| Conditions | High Speed Only |
| Misc. | Mech. Temp & Blower Cont. |
Message Closed w/FIX
Vehicle Data
1988 Chevrolet ASTRO
| VIN | 1GHDM15Z4J |
| Engine | 4.3 L / 6 cyl |
| Affected | Blower Control |
| Conditions | High Speed Only |
| Misc. | Mech. Temp & Blower Cont. |
Video