Question about 2004 Jeep Wrangler

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I have a 2004 jeep wrangler that is throwing a p0123 tps volts high code i have replaced the sensor and it is still coding. and ideas thanks

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  • Richard Scordino May 11, 2010

    Two things...Have you checked actual volts at tps? Have you checked charging system to make sure that output is not too high?

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  • Master
  • 986 Answers

Did you rest the code after replaceing the snsor?

Posted on Jun 20, 2009

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1 Answer

Error code P0123 and will not shift into OD


IDK if you have more than one problem. Code P0123: throttle position sensor/switch a circuit high input. Plausible causes would include, TPS not mounted correctly, TPS not properly adjusted, Wiring to the TPS is damaged (ground wire touching another wire), or the TPS sensor is defective. Your symptoms could be caused by an electrical or a mechanical failure. First repair this code and see if it fixes your driveability issue. Please write back and let me know how you are making out, good luck.

Mar 21, 2014 | Jeep Grand Cherokee Cars & Trucks

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Codes p0203, p0123, and p0113 are showing for my 2001 jeep grand cherokee. The voltage from the tps plug was 1.5v


P0113 intake air temp voltage too high
P0123 Throttle position sensor voltage too high
P0203 is injector #3 control circuit
voltage is higher that 4.9 volts short to 5 volt supply circuit

erase the codes and drive vehicle to see if the codes come back if they do you have a hard code check the supply circuit for a short

Nov 11, 2013 | 2001 Jeep Grand Cherokee

2 Answers

2004 jeep grand cherokee laredo, po162, po123


162 is the O2 sensor and 123 is Throttle/Pedal Position Sensor/Switch "A" Circuit High

Jun 18, 2017 | 2000 Jeep Cherokee

1 Answer

2004 jeep grand cherokee laredo, po162, po123


P0123 is a TPS/Pedal Position Sensor A Circuit High Input code. P0162is an 02 Sensor Circuit Malfunctoin (Bank 2 Sensor 3) problem.

Jul 01, 2012 | 2000 Jeep Cherokee

1 Answer

P0123 Just put new Tps and it is showing this code now can adjust the TPS?


DTC P0123 - Throttle Position Sensor/Switch A Circuit High Input
This code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too high a voltage. Were codes deleted after this job? This is a code for TPS voltage high.

The sensor voltage should never be greater than 5volts. It normally reads .5 to .8 volts at idle (closed throttle). The orange and dark blue is the signal wire, black and light blue is the sensor ground, and the violet and white is the 5volt supply wire. You will need to back probe the signal wire to find the value. It is possible the signal or ground wires are open. Or the PCM is faulty.

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Hope this helps (remember to rating this free answer).

Oct 10, 2011 | 1999 Dodge Ram

1 Answer

2002 Jeep Wrangler. Engine warning light is on. After turning the key switch on/off 3 times the following two codes appear. P0123 and P0300.


Hi, I'm not sure these are related. The first is your throttle position sensor. This tells the engine how hard you are pushing on the accelerator. The second code is random misfire., which I've never seen caused by the TPS. That said, I would fix the TPS first. Check the wiring and connector for any issues. If the wiring looks good, I would replace it and calibrate the new sensor. If this doesn't clear up the code 300, please read my post on misfires for additional troubleshooting steps: http://www.fixya.com/cars/r6715318-causes_gasoline_engine_misfires . These are generic instructions.

Trouble Code: P0123

TP Sensor Circuit High Input
Possible Causes:


TP Sensor sweep TP Sensor ground circuit is open TP Sensor signal circuit is open or is shorted to VREF (5v) TP Sensor is damaged or has failed (an internal open circuit) Possible intermittent condition PCM has failed


Trouble Code: P0300

Multiple Cylinder Misfire Detected
Possible Causes:


Air leak in the intake manifold, or in the EGR or EVAP system Base engine mechanical fault that affects two or more cylinders Erratic or interrupted CKP or CMP Sensor signals Fuel delivery component fault that affects two or more cylinders (i.e., a contaminated, dirty or sticking fuel injector) Ignition system problem (coil or plug) in two or more cylinders Vehicle driven with low fuel pressure or while very low on fuel

Feb 22, 2011 | Jeep Wrangler Cars & Trucks

1 Answer

The service light came on and i checked the diagnostic code which read P0123


A P0123 code means that the computer has detected that the TPS (throttle position sensor) is reporting too high a voltage.


Symptoms may include:

  • Rough idle
  • High idle
  • Surging
  • other symptoms may also be present

A code P0123 may mean that one or more of the following has happened:

  • TPS not mounted securely
  • TPS circuit short to ground or another wire
  • Faulty TPS
  • Damaged computer (PCM)

If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, carefully inspect all wiring and connectors that lead to the TPS. More than likely the problem is with the TPS wiring. Check the voltage at the TPS (refer to a service manual for your vehicle for this specific information). If the voltage spikes or is too high (over 4.65 volts with key on, engine off), then that is indicative of a problem. Carefully trace each wire from the TPS wiring harness to check for breaks, rubbing against other components, etc.

Feb 04, 2011 | Jeep Wrangler Cars & Trucks

1 Answer

1994 jeep wrangler backfiring missing,


The problem is one of your coil packs is bad. Don't throw money into sensors, they are false codes. The problem is coil packs.

Feb 20, 2010 | 2004 Jeep Wrangler

3 Answers

2003 jeep wrangler trouble codes p0123, p0121, and p0152. What do they mean? Any help would be appreciated.


A code P0123 may mean that one or more of the following has happened:
  • TPS not mounted securely
  • TPS circuit short to ground or another wire
  • Faulty TPS
  • Damaged computer (PCM)
Possible Solutions If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, carefully inspect all wiring and connectors that lead to the TPS. More than likely the problem is with the TPS wiring. Check the voltage at the TPS (refer to a service manual for your vehicle for this specific information). If the voltage spikes or is too high (over 4.65 volts with key on, engine off), then that is indicative of a problem. Carefully trace each wire from the TPS wiring harness to check for breaks, rubbing against other components, etc.
A code P0121 may mean that one or more of the following has happened:
  • TPS has intermittent open or short internally
  • Harness is rubbing and causing an open or short in the wiring
  • Bad connection at the TPS
  • Bad PCM (less likely)
  • Water or corrosion in connector or sensor
Possible Solutions 1. If you have access to a scan tool, see what the idle and WOT (wide open throttle) readings are for the TPS. Check if they're close to the specifications mentioned above. If not, then replace the TPS and re-check.
2. Check for an intermittent open or short in the TPS signal. To do that, you can't use a scan tool. You'll need an oscilliscope. The reason is because scan tools take samplings of many different readings over just one or two data lines and can miss an intermittent drop out. Hook up your oscilliscope and watch the signal. It should sweep up and down smoothly with no drop outs or spikes.
3. If no problems were noticed, perform a wiggle test. Do this by wiggling the connector and harness while watching the pattern. Does it drop out? If so, replace TPS and re-check.
4. If you have no TPS signal, check for 5 Volt reference at the connector. If it's present, check the ground circuit for open or shorts.
5. Make sure the signal circuit isn't 12V. It should never have battery voltage. If it does, trace circuit for short to voltage and repair.
6. Look for any water in the connector and replace TPS as necessary.
P0152 Oxygen Sensor Circuit High Voltage (Bank 2 Sensor 1)

Feb 16, 2010 | 2003 Jeep Wrangler

2 Answers

I have a 2004 jeep wrangler and i am reading the codes p0122 p0123 and p0432 can anyone let me know what these dtc's mean and if possible how to fix what it broken


P0122 - Throttle Position (TP) Sensor Circuit Low Voltage
P0123 - Throttle Position (TP) Sensor Circuit High Voltage
without checking it 1st I would guess the TPS is most likely defective.
P0432 - Catalyst System Low Efficiency Bank 2, you may have to replace the Catalytic convertor, it may be worn out,
A WORD OF CAUTION: Don't use aftermarket cats, they tend to reset the same code due to compatibility issues, also replace the cat monitor sensor (looks like an O2 sensor) located just to the rear of the bank 2 cat converter.

Dec 04, 2008 | Jeep Wrangler Cars & Trucks

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