GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Connector C104, Engine Control Module (ECM), PTO Relay, Turn Signal Multifunction and PTO Switch


Object Number: 1843207  Size: FS
Master Electrical Component List
Power Take-Off (PTO) Description and Operation
Control Module References
Connectors C106, C120, C209, and Engine Control Module (ECM)
G400 and G402 - 3 of 8
Fuse Block 1: Fuses 6 and 7, Fuse Block 2: Fuse 8, and Fuse Block I/P 2: Circuit Breakers 17, 18, 20, 21, 22, and 24
Fuse Block 1: Fuses 6 and 7, Fuse Block 2: Fuse 8, and Fuse Block I/P 2: Circuit Breakers 17, 18, 20, 21, 22, and 24
Fuse Block 1: Fuse 5 and Fuse Block I/P 1: Circuit Breakers 5, 9 - 1 of 2, and 10
Power, Ground, Serial Data, and Transmission Optional Connector
Power, Ground, Serial Data, MIL, Solenoids, Transmission Optional Connector
Cruise Control Schematics
G400 and G402 - 2 of 8
Figure 2:

Connector C106, C120, C209, and Engine Control Module (ECM)


Object Number: 1843209  Size: FS
Master Electrical Component List
Power Take-Off (PTO) Description and Operation
Control Module References
Connector C104, Engine Control Module (ECM) PTO Relay, Turn Signal Multifunction and PTO Switches
G400 and G402 - 6 of 8
G400 and G402 - 8 of 8