Seville V8-273 4.5L (1989)
3.
Splice, clip, and solder (refer to Section 8A of the appropriate Service Information Manual for splicing instructions) the various leads to the
afterblow module wiring harness with the circuits shown in the corresponding wiring diagram. Disconnect the wiring harness from the afterblow
module and connect the black/white ground lead first before completing the remaining splices. Since a majority of circuits to be spliced are low
cuffent circuits, care should be taken to assure that the splices are completed and soldered correctly.
4.
Test operation of afterblow as follows:
a.
Start vehicle.
b.
Turn A/C system on to engage compressor.
c.
Connect jumper wire to apply battery voltage to open position pin H (green wire) of afterblow module for at least 30 seconds with
compressor engaged.
d.
Turn vehicle ignition off.
e.
Blower should come on after approximately 10 seconds for one second and then go off.
f.
Disconnect jumper wire from pin H (green wire).
5.
Add foam insulation as necessary to ensure rattle-free installation of the afterblow module.
NOTE:
The afterblow module affects aftermarket and Goodwrench theft alarm systems. Cycling the blower motor with key off could trigger alarms
that sense battery voltage changes's or current drain.
Parts are currently available from GMSPO.
