GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2004
🢒
TrailBlazer - 2WD
🢒 Power, Ground, Serial Data, and MIL
Power, Ground, Serial Data, and MIL
Power, Ground, Serial Data, and MIL
Master Electrical Component List
Powertrain Control Module Description
5 Volt and Low Reference
OBD II Symbol Description Notice
B+ Bus - Underhood Fuse Block
COILS, AIR, EAP, TBC 1, PCM B, LOW HDLP-RT, LOW HDLP-LT, HI HDLP-LT, and HI HDLP-RT Fuses
PCM I and AIR SOL Fuses - 4.2L
ACCY/RUN and RUN/START Bus Bars
IGN E, TBC IGN 1, BACKUP, BTSI, and TRLR B/U Fuses
ACCY/RUN/START, RUN, and START Bus Bars
IGN 0, TBC IG, TBC ACC, FRT WPR, and RAIN Fuses
IGN E, TBC IGN 1, BACKUP, BTSI, and TRLR B/U Fuses
PCM I and AIR SOL Fuses - 4.2L
Power, Ground, Serial Data, and MIL
IGN 0, TBC IG, TBC ACC, FRT WPR, and RAIN Fuses
G108
Power, Ground, Data Link Connector, and SP205
