NEED HELP 2008 Trailblazer No Spark

[kw1hf]

2008 trailblazer no spark and no tach. I jumped a person, and they killed my blazer.
Crank shaft position sensor is good

 

[mrrsm]

Check Out THIS Video from @MAY03LT on what to check after a Jump Start Disables any Trailblazer:

Checking ALL of your Fuses in ALL Three Fuse Blocks (Under-Hood, Outer Dash Panel and Under the Left Rear Passenger Seat Block) will not hurt with using a Pin-Probe Lighted Test Light for a Quick Check on them ALL.

 

[kw1hf]

It is none of the fuses. and ECU does see the crank shaft sensor.
No spark or Tach after Jumping another vehicle

 

[mrrsm]

Codes?

 

[TollKeeper]

How did you determine the CPS was good?

 

[Schurkey]

2008 trailblazer no spark and no tach...
...Crank shaft position sensor is good

ECU does see the crank shaft sensor.
No spark or Tach after Jumping another vehicle

If the crank sensor is good, but the ECU doesn't "see" the signal...either the wire harness between the sensor and ECU is defective, or the ECU is defective.

I'd be examining the wire harness first.

 

[TollKeeper]

Just because a ECU sees the CPS, doesn't mean it's good either. Magnet could be cracked internally, or a few other things.

 

[kw1hf]

Just because a ECU sees the CPS, doesn't mean it's good either. Magnet could be cracked internally, or a few other things.

I did replace CPS

 

[kw1hf]

I did replace CPS

And there is no power to the coils and no tach

 

[budwich]

how did you check your fuses.... more so WHICH fuse (number / position) did you check.

 

[kw1hf]

I checked every fuse in the fuse box with a VOM meter. I wanted to check each fuse in the 2008 trailblazer and replace them if necessary

 

[Schurkey]

I checked every fuse in the fuse box with a VOM meter.

"The" fuse box? Aren't there multiple fuse boxes?

 

[Mooseman]

No power to the coils would mean one of these: bad fuse, bad ignition switch, bad relay, broken wiring, broken trace in the fuse box itself. Look at the schematics and where the power to the coils come from. Trace back from there. Schematics are available from the manuals downloads in my signature.

 

[budwich]

I checked every fuse in the fuse box with a VOM meter. I wanted to check each fuse in the 2008 trailblazer and replace them if necessary

Ok... then the next step is to check for voltage at the appropriate fuse. Go from the result.