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

w/o JL4


Object Number: 1252273  Size: FS
Master Electrical Component List
Cruise Control Description and Operation Without Throttle Actuator Control
JL4
IGN B Fuse, ACCY/RUN and RUN/START Bus Bars
O2A, O2B, SPARE, BTSI/BU, PCM IGN 1, BTSI and TRLR BU Fuses
B+ Bus - Underhood Fuse Block
IGN B Fuse, ACCY/RUN and RUN/START Bus Bars
Spare, IGN E, SIR, TBC IGN 1 and ISRV Fuses
Power, Ground, Serial Data, Indicator and Stop Lamp Switch - w/o VSES
Spare, IGN E, SIR, TBC IGN 1 and ISRV Fuses
Data Link Connector (DLC)
DR TRN MIR, PASS TRN MIR and STOP/CHMSL Fuses
Hazard, Turn and Stop Lamp Signals
Hazard, Turn and Stop Lamp Signals
Hazard, Turn and Stop Lamp Signals
Fuel Controls - EVAP and Device Controls
Fuel Controls - EVAP and Device Controls
G302
Figure 2:

JL4


Object Number: 1252284  Size: FS
Master Electrical Component List
Cruise Control Description and Operation With Throttle Actuator Control
w/o JL4
IGN B Fuse, ACCY/RUN and RUN/START Bus Bars
O2A, O2B, SPARE, BTSI/BU, PCM IGN 1, BTSI and TRLR BU Fuses
B+ Bus - Underhood Fuse Block
IGN B Fuse, ACCY/RUN and RUN/START Bus Bars
Spare, IGN E, SIR, TBC IGN 1 and ISRV Fuses
O2A, O2B, SPARE, BTSI/BU, PCM IGN 1, BTSI and TRLR BU Fuses
Spare, IGN E, SIR, TBC IGN 1 and ISRV Fuses
Data Link Connector (DLC)
DR TRN MIR, PASS TRN MIR and STOP/CHMSL Fuses
Hazard, Turn and Stop Lamp Signals
Hazard, Turn and Stop Lamp Signals
G102