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Premium Member
06 TrailblazerSS
Joined
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2,410 Posts
Discussion Starter · #1 ·
Hello,

I just bought a TBSS again and it seems like it’s in limp mode when in Drive.

It is throwing these codes:
P0103 mass airflow sensor circuit high frequency

p0700 Tran control module requested MIL illumination

any ideas where to start? I tried disconnecting the battery and cleaning the MAF.
 

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Premium Member
2008 Black TBSS
Joined
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3,608 Posts
First, check the MAF wiring and connectors for wiring damage, loose connectors or corrosion.

P0700
 

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Premium Member
06 TrailblazerSS
Joined
·
2,410 Posts
Discussion Starter · #3 ·
First, check the MAF wiring and connectors for wiring damage, loose connectors or corrosion.

P0700
I took the maf out and cleaned it, checked it all and still same.

Bought a cheap maf from O’Reillys and still same
 

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Premium Member
2008 Black TBSS
Joined
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3,608 Posts
Sincerely doubt it's the MAF even without your checking. Make sure all the wires are securely seated in the connector without any corrosion. Then follow the wires back looking for cuts or frayed wires.
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