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Hi, I have a 2004 Isuzu Ascender, 4.2L engine. How do I fix error code B0012?

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The steps are,
open the book,, the SM
read the page on that DTC<
it then tells you what tests are next to isolate the actual cause
all cars made. same deal, RTM
gue$$ing is for squids. no?

  1. get the car fixed,
  2. or buy the book and read.
2 paths,.
id use 3rd sell it, id never own a car from any company that BUGGED OUT (USA)(for serious daily drivers)

Posted on Dec 02, 2016

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Passenger Frontal Stage 3 Deployment Control (Subfault)

Posted on Dec 01, 2016

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Posted on Jan 02, 2017

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2 Answers

Hello, how can I resolve an error code B0001 for a 2004 Isuzu Ascender with a 4.2L engine? Thank you!

There are no results for this error, scan and see if a different error pops up. You can go to any auto parts store to get it scanned as long as the check engine light is on. Advanced Auto etc, Auto zone. God Bless! Its free!

Nov 23, 2016 | 2004 Isuzu Ascender

1 Answer

Where on my 04 Isuzu ascender is the camshaft position sensor

On the I6 engine, it's on the front of the engine on the block near the camshaft. Directly below where you put your oil in.

Mar 10, 2015 | 2004 Isuzu Ascender

1 Answer

I have a 2004 Isuzu ascender and the check engine

could be coil or injecter what is wrong with it is it missfiring

Oct 13, 2014 | 2004 Isuzu Ascender

1 Answer

How replace smog pump in 2005 Isuzu Ascender

How do you know the pump is defective, what is the code?

Aug 31, 2014 | 2005 Isuzu Ascender

2 Answers

Were is O2 sensor in ascender 204 engine

ah crapp, its 2014 post , got sucked in....

same on all cars, you meant 2004 engine right, but no engine stated. ok 4.2L I-6, LL8 by GM. used on also.
Chevrolet TrailBlazer, GMC Envoy, and Oldsmobile Bravada

there are 2,
one before the cat, and one behind it. (most cars)
its the only thing on exh, header with wires...
that melt.
just knowing that the sensor measure, oxygen at the exhaust collector answers that))
Some engines, I-6 for calif laws, have split exhaust manifolds
and acts like V6, 2 senors front 1 rear of cat. for 3 total
i just look first for split headers... below is not, its regular kind
the 02 front is here.

here is the fed version


Jun 14, 2014 | 2004 Isuzu Ascender

1 Answer

2005 isuzu ascender random misfires code

Po300 codes are system generated caused by computer can not locate real failure condition. Coil on plug engines the coil boots fail and wider gap spark plugs wrong spark plugs by design, secondary ignition wires, vacuum leaks, poor fuel quality, plugged fuel filter, low fuel pressure , leaking pressure regulator, unmetered air between mass air flow sensor and throttle body, crankcase ventilation leak.

Nov 07, 2013 | 2004 Isuzu Ascender

1 Answer

Pcm and flashing for 2006 isuzu ascender. error code P0601 pcm/tcm memory error. vehicle is no crank no start

ok this is the second one today , internal controler failure
bttter knowen as (internal control module fault condition detected, (
check s u m )

Sep 29, 2012 | 2006 Isuzu Ascender

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