GM Service Manual Online
For 1990-2009 cars only
Table 1: PTO Relay
Table 2: PTO Switch

PTO Relay


Object Number: 535912  Size: CH

Connector Part Information

    • 12129716
    • 4 Way F Metri-pack 280 Series Flexlock (MD GRY)

Pin

Wire Color

Circuit No.

Function

30

ORN

1040

Battery Positive Voltage

85

LT GRN

488

PTO On Switch Signal

86

PPL

2562

PTO Control

87

WHT

2561

PTO Supply Voltage

PTO Switch


Object Number: 280767  Size: CH

Connector Part Information

    • 12186098
    • 8 Way F Metri-pack 150 Series (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

41

Ignition 3 Voltage

B

LT GRN

488

PTO On Switch Signal

C

GRY

8

Instrument Panel Lamp Supply Voltage

D

GRY

397

Cruise Control On Switch Signal

E

YEL

938

PTO Engaged Signal

F

BLK

150

Ground

G

DK BLU

84

Cruise Control Set/Coast Switch signal

H

PPL/WHT

1382

LED Dimming Signal