Century V6-173 2.8L VIN W FI (1987)
FIGURE 3 CIRCUIT DIAGRAM
IMPORTANT:
The circuit diagram shown in Figure 3 shows the circuit numbers generally used on the subject model year car lines. However, to make sure of the
correct circuits and wire colors are spliced into, refer to Section 8A of the Service Manual.
18.
Disconnect the negative battery cable.
19.
Remove close out panels, fuse block, trim plates, A/C control head and glove box as required to gain access to the circuits shown in the circuit
diagram. Refer to Section 8A of the Service Manual for component location and service procedures.
20.
Disconnect the afterblow module from its jumper harness and set the module aside.
21.
Splice the black/white wire (PIN C) of the harness into the black ground wire of the A/C control head wiring (circuit # 150).
22.
Splice the orange wire (PIN A) of the harness to a battery feed at the fuse block or the cigar lighter (circuit # 40).
23.
Splice the red wire (PIN B) of the harness to the ignition feed wire of A/C control head wiring (circuit # 50).
24.
Cut the orange high speed blower output wire (circuit # 52) of the A/C control wiring. Splice the tan/orange wire (PIN F) of the harness to the
orange wire leading to the A/C control head. Splice the black/orange wire (PIN G) of the harness to the other end of the orange wire leading to the
blower motor.
25.
Splice the white wire (PIN E) of the harness to the A/C compressor control wire coming out of the ECM. This is usually circuit # 458, # 459 or #
366.
26.
Cut off the bare end of the blue wire (PIN D) of the harness, tape the end and fold and tape the wire to the harness.
27.
Connect the negative battery cable.
28.
Test the afterblow module for operation.
29.
Mount the afterblow module in a convenient location under the dash, using foam insulation as necessary to ensure a rattle-free installation of the
module.
