1987 Chevrolet GMC Light Truck Wiring Manual – PDF DOWNLOAD

Description

1987 Chevrolet GMC Light Truck Wiring Manual – PDF DOWNLOAD

FILE DETAILS:

1987 Chevrolet GMC Light Truck Wiring Manual – PDF DOWNLOAD

Language : English
Pages : 214
Downloadable : Yes
File Type : PDF
Size: 5.32 MB

DESCRIPTION:

1987 Chevrolet GMC Light Truck Wiring Manual – PDF DOWNLOAD

The wiring diagrams in this manual use a format which reduces the number of lines on a schematic by’showing each wire connection at the terminals and components, but only one wire for the wiring harness. The wiring diagrams use an alpha-numerical grid and an address for each wire entering the harness to show where it comes out. If the other end of the wire is on a different page, the page number and address will be shown at the bottom right hand corner of the schematic. Figure 1 explains the wire coding. The contents page lists the harnesses by section number and name.

TRACING CIRCUITS
EXAMPLE: CRUISE CONTROL POWER SOURCE
WITH THE MANUAL TRANSMISSION (Figure 2)
1. Circuit 139 originates at the fuse block. Refer to
figure 3.
2. This format gives the address code for the next
connection: the address code is N9 (part of 139A N9
0.8 PNKl8lK).
3. At location N9. the triangle with the dot in the center
indicates a splice in the harness. The three wire
codes indicate the “addresses” of the three wires
spliced together there. 04 is wire 139A. from the
fuse block.
4. Wire 1398 is “addressed” to F4. F4 is located at the
cruise control activator connector. It is the 0.8
PNKl8lK wire. The code at this location refers back
to the splice at N9.

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1987 Chevrolet GMC Light Truck Wiring Manual – PDF DOWNLOAD

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