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2001 Dodge Durango Codes P0121 and P0123

Changed the TPS not the issue what's next?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 82 Answers

SOURCE: 2001 dodge durango v8 4.7

It is acually called the vehicle speed sensor I do believe. It should should be located on the top of your transmission with a wiring harness attached to it. It should also have 1 bolt holding it in also. Whatever you do, do not rotate the gear when you remove it. Try to mark the exact way it came out when you replace the sensor. When you pull the sensor out it will have this gear attached to it which will need to be placed into the new sensor and put back into the vehicle in the same way it came out or you will throw a code and it will not be pretty. Good luck, hopefully I didn't scare you it can be a simple repair just mind your P's and Q's.

Posted on Jan 07, 2009

Cutlass85
  • 10 Answers

SOURCE: loacte the fuel filter on 2000 dodge durango 4.7 liter v8

if i am not mistaken the fuel filter is built into the fuel pump. which requires you to drop the tank and replace both.

Posted on Jun 01, 2009

tragedy lok
  • 266 Answers

SOURCE: Very simple..... I need to clear the codes out of

kragen or auto zone can clear the codes

Posted on Jun 21, 2009

  • 4088 Answers

SOURCE: codes

The first two were not listed in the file that I have, the third has to do with evaporative emission control has a small leak. The first two seem to be other codes having to do with the same area. Check the hoses and fittings at the fuel tank area for leaking or damage for the vent system. Check the fuel entry to tank hose and fittings. Locate (underneath the body) and check the charcoal canister for cracked case, loose or damaged fittings. Clear the light with the scanner and see if other codes show up. Are there any obvious problems other than fuel vapor leaks?

Posted on Aug 22, 2009

  • 1 Answer

SOURCE: my 2001 dodge durango is overheating an leaking coolant from a round plug type thing in the corner on the passenger side near the windshield

What exactly is the "round plug type thing" near the firewall [passenger side]? Is it a sensor of some type? I, too, have a coolant leak here on my 2001 Durango; its tucked in rather tightly near the hood/firewall corner. My electric fan is not kicking on; vehicle overheated tonight. (4.7 liter)

Posted on Dec 28, 2009

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Multiple codes on 2002 dodge durango


This many codes sounds like a wiring issue. You need to inspect all the wiring. If you have rabbits in your area, they eat wires. If not then it is likely to be a corroded or loose ground. You need to get a wiring diagram etc.

Feb 25, 2014 | 2002 Dodge Durango

1 Answer

03 caravan showing codesP0123 and P0121. Can anyone help me with this. The van is not shifting gears properly. Thanks!


Hi there:
P0121 - Throttle Position Sensor/Switch A Circuit Range/Performance

The Throttle position sensor is a potentiometer that measures the amount of throttle opening. As the throttle is opened, the reading (measured in volts) goes up. The powertrain control module (PCM) supplies a 5 Volt reference signal to the throttle position sensor (TPS) and usually a ground also. A general measurement is: at idle = .5 Volts; full throttle = 4.5 Volts. If the PCM detects that the throttle angle is greater or less than it should be for a specific RPM, it will set this code.


Symptoms of a P0121 trouble code could include:

Malfunction Indicator Lamp (MIL) illumination (Check Engine Light or Service Engine Soon light)
Intermittent stumble on acceleration or deceleration
Blows black smoke on acceleration
No start


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.


P0123 Code - Throttle Position Sensor/Switch A Circuit High Input
A P0123 code means that the the car's 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)

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.


Hope helps

Apr 19, 2012 | 2003 Dodge Caravan

2 Answers

Please can you give me the code of TPS of Chevrolet Epica 2004


There are 3 DTC codes related to the TPS....

1. P0121 - Throttle Position (TP) Sensor Performance

2. P0122 - Throttle Position (TP) Sensor Circuit Low Voltage

3. P0123 - Throttle Position (TP) Sensor Circuit High Voltage

If there is any further assistance, please let us know

Sep 27, 2010 | Chevrolet Chevy Cars & Trucks

1 Answer

Dodge durango p0123


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

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

Aug 23, 2010 | 2002 Dodge Durango

2 Answers

P0121 code in a 2000 dodge durango, will he TPS make the ransmission shift spuratically.


Yes..... The TPS can cause this!!! Another sign of a failing TPS is for the rpm's to fluctuate up and down by 100-300 as you drive down the interstate at a steady speed on a level surface.

Jun 22, 2010 | 2000 Dodge Durango

1 Answer

2001 Dodge Durango problems with rough idling and stalls.


Hello... Where to go next depends on how the Evap Gross Leak was fixed... Post it...

Thx.

Jun 16, 2010 | 2001 Dodge Durango

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

1 Answer

Getting a code p0121on my dodge durango 2001


Trouble code P0121 means: Throttle Position Sensor Voltage Does Not Agree With Map Sensor. You can replace the TPS for @ $30 from Autozone. Please vote appropriately and leave a comment. I hope this helps and Good luck.

Oct 29, 2009 | 2001 Dodge Durango

2 Answers

My check engine light is on. The code is P0121


I believe all the Mopar OBDC codes are the same. A list of the 2001 codes were posted on a PT Cruiser site here: 2001 Chrysler codes

Your error says the throttle position sensor and MAP sensor disagree with each other

Jun 22, 2009 | 2001 Dodge Durango

1 Answer

Serges when idle


P0121 is TPS Reference signal faulty.

Has you vehicle been worked on lately?

Sound like could be a ground problem in and around the throttlebody. I would look there first. TPS don't go out that often, it is usually something else that cause's that to happen

Jul 22, 2008 | 2000 Dodge Durango

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