A/C - Corrected Programmer Test A (Table 1)
89chevy31Number: 89-207-8A
Section: 8A
Date: July 1989
Subject: HEATER AND AIR CONDITIONING PROGRAMMER TEST A - TABLE I
Model and Year: 1989 Y CAR
TO: ALL CHEVROLET DEALERS
This bulletin covers Service Manual Section 8A, page 68-3, Heater and A/C Programmer Test A (Table 1) which is incorrect. Two voltage measurements in the table are incorrect. Correct the table to read as follows:
Measure Correct For
Between Voltage Diagnosis
T (Lt Blu) and 5 Volts See 6
R (Blk)
U (Tan) and Between See 7
R (Blk) 0.5 and
5 volts