ECM, A/C Signal - Revised Electrical Diagnosis

9216chevy02

Number: 90-377-8A

Section: 8A

Date: November 1990

Corporate Bulletin No.: 018120


Subject:
ELECTRICAL DIAGNOSIS


Model and Year:
1990 CORVETTE


TO: ALL CHEVROLET DEALERS

The 1990 Corvette Service Manual incorrectly shows the ECM A/C Request Input sourced to voltage, instead of ground, in ELECTRICAL DIAGNOSIS (SECTIONS 8A-64 and 8A- 67). Refer to the pages (listed) for the correct information.





Page 8A-64-0





Page 8A-64-5





Page 8A-64-6





Page 8A-64-7





Page 8A-64-8





Page 8A-67-1





Page 8A-67-4





Page 8A-67-5





Page 8A-67-7