Check engine light

Tiny
H2HUMMER12
  • MEMBER
  • 2008 HUMMER H2
  • 0.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 154,000 MILES
What do the following codes mean:
0030
053
134
135
300
422
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Friday, February 17th, 2017 AT 3:56 PM

3 Replies

Tiny
OBXAUTOMEDIC
  • EXPERT
Hello,

Okay, So the P0030, P0053, P0134, P0135 & P0422 all have to do with the O2 sensors mainly sensor 1 bank 1. They are heated sensors and have fuses, I would look for the fuse block under hood and find the related fuse for sensor 1 check to see if it is blown.

The P0300 is multi-cylinder misfire - when was last tune up could also be do to O2 sensor issue.

Hope this helps.

Mark
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Friday, February 17th, 2017 AT 4:54 PM
Tiny
CARADIODOC
  • EXPERT
Are these in the Engine Computer? If so, the first four are all related to problems with the driver's side front oxygen sensor.

P0300 indicates a random cylinder misfire.

I do not have a listing for P0422. The closest is P0420 which refers to low efficiency of the catalytic converter on the driver's side.
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Friday, February 17th, 2017 AT 4:54 PM
Tiny
OBXAUTOMEDIC
  • EXPERT
Here is the fuse block diagram.
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Friday, February 17th, 2017 AT 5:18 PM

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