03 Trailblazer No crank, No start

Mrautoserv72

Original poster
Member
Dec 19, 2020
2
Texas
Hello! 03 trailblazer will not crank. The ign switch is working as far as voltage when in the off/acc/run positions. There is nothing happening in the fuse box. Relays aren't coming on. With a power probe I can engage the starter (Also new starter)from the 47 relay. But no changes to the ign relay 58 at all.the dash powers up but blacka out when turning the key to start. The neutral safety switch is working according to the scan tool.(P/R/N/D) Show to be working.ive checked the fuses several times even under the back seat. I did notice when trying to crank the ign fuse inside under the seat is lighting up but nothing to the exterior fuse box from the ign side to crank. Ignition switch is new also. HEEELP!! Lol. Any help or suggestions is appreciated, thanks.
 

Mooseman

Moderator
Dec 4, 2011
25,344
Ottawa, ON

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