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2004 isuzu rodeo codes P1125, P1295 and P1515 what do they mean ?

no engine stated.
answering for usa rodeo. only. on a usa forum.
it means trouble; the factory manual covers this.
As does mitchells DIY online, read that much>?
those are called DTCs , scan codes. diagnostic trouble codes.
The PCM looks for problems all the time running,
CALLED MONITORS (a sort of nanny)
all cars do this 96 to now, in USA. by law.
If no book or no mitchells try google (or the like)
if you had you'd have seen isuzu examples.

but google finds this in 1 click.

the great (ASE Techs)?
2nd hit.,
P1125 Isuzu Electronic Throttle Control Limit Performance Mode P1221 Isuzu Throttle Position Sensor 1-2 Circuit Performance P1295 Isuzu Electronic Throttle Control Power Management Mode P1515 Isuzu TP Sensor To MAF Sensor Correlation

the first hit said, bad grounds top engine to PCM
and bad harness wires to above same place.
but as all techs, no, bad wires, happen all the time.
as do vast other reasons.
what I do , as the FSM states, clearly
is pick one failure and correct it, and sometimes gets them all.
like blown fuses do, on all vehicles.

1125 means limphome, is in force Low power too.
the TPS is acting up.
the 1515 means in English
that the Throttle angle and air flow dO NOT JIBE.
my jeep books calls that "incongruity": (nicer word)
or they differ. and should not.
i'd be checking the TPS voltages. for correct voltage.
this can fail for wires, rust, and bad sensors.
the word performance means it reads funny. (wrong)

we use a real scan tool and a real volt meter to see what the readings are on these parts.
why not get a real ASE tech to find it.
they know all that electronics magic,
ALL learn that there can be false codes.
one failure can trip many codes, but only one is the fundamental code.

or vacuum leaks cause many errors but not one
states vacuum leaks.

Oct 01, 2016 | 2004 Isuzu Rodeo

1 Answer


  • Poor continuity through the TP sensor connectors.
  • Poor continuity through the TP harness.
  • Intermittent open or short inside the TP sensor

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    Mar 15, 2013 | 1996 Isuzu Rodeo

    1 Answer

    Lexus P1125 code is on changed the tps but still has the same problem, limp mode.

    The P1125 means "Throttle position sensor intermittent", hope it can help you!

    Sep 12, 2012 | 1999 Lexus Gs 300

    1 Answer


    You didn't say what kind of vehicle or the model year, if you have replaced the TPS and the harness, it could be a problem in the computer.

    Aug 29, 2012 | Cars & Trucks

    1 Answer

    Do you know what the fault codes.p1125,p1125+,p1129,p1129+ stand for as the aa man didnt know but they came up on his computer,i have a 2002 mini cooper 1.6 petrol any advice???

    P1125 is Trottle Position Sensor Performance intermittent small error
    Not 100% sure but I think P1129 is Heated Oxygen Sensor Signals reversed

    Sep 18, 2011 | 2002 Mini Cooper

    2 Answers

    OBD2 CODE P1125

    Throttle Position Sensor --intermittent

    Jun 22, 2011 | Pontiac Grand Prix Cars & Trucks

    2 Answers

    The code is p1125bb

    Diagnostic Test Code (DTC) P1125 Has to do with your Accelerator Pedal Position Sensors (APP).

    The APP sensor 1 and APP sensor 2 are potentiometer type sensors with the following circuits.
    • A 5-volt reference circuit
    • A low reference circuit
    • A signal circuit
    The APP sensor 1 signal to the PCM is low at rest and increases as the pedal is depressed. The APP sensor2 signal also low at rest and increases as the pedal is depressed. DTC P1125 sets when BOTH of these sensors have a problem. It will not set if only one of the sensors are not reading correctly. This code also does not set alone. There will be at least 2 other APP fault codes set along with this code and these codes MUST be diagnosed first.

    May 15, 2011 | 2006 Buick LaCrosse

    1 Answer

    Diagnostic code for isuzu rodeo p1125,p1295, and p1550

    P1125 is: Throttle Positioning Sensor intermittent.
    P1295 is: Multiple faults on bank 1 (right)
    P1550 is: Power steering pressure sensor out of self test range.
    Well the ECM recognizes 3 codes. Were these codes stored as inactive (in the history section)? Or are these codes all active? Code P1125 and P1295 may be related but P1550 is separate. How else may I help?

    May 06, 2010 | 2002 Isuzu Rodeo

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