Question about 2003 Jeep Liberty

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I have a Jeep Liberty 2003. The error codes are P0122 and P1299, Is it easy to repair? How expensive is it? Thanks.

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Posted on Jan 02, 2017

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SOURCE: p1299 and p0122 codes Jeep Liberty 2002 3.7

P1299 Vacuum Leak Found (IAC Fully Seated)

P0122 Code - Throttle Position Sensor/Switch A Circuit Low Input

Not sure if you have solved this or not yet but these are your error code read outs. They would cause your problems.

Posted on Sep 03, 2009

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SOURCE: 2003 jeep liberty air bag light on is it easy to fix

The system needs to be checked for cades. Airbag codes are pulled out of the ECU with the use of a scanner tool. A good auto mechanic shop will have this or you can go to the dealer. YOU SHOULD NOT TRY TO REPAIR THIS YOURSELF,YOU COULD ACTIVATE THE AIRBAG!!!!!

Posted on Nov 11, 2008

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Posted on Jul 26, 2009

ZJLimited
  • 17970 Answers

SOURCE: 2004 - JEEP LIBERTY SPORT

P0122 Code - Throttle Position Sensor/Switch A Circuit Low Input

A P0122 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. On some vehicles that lower limit is 0.17 - 0.20 volts (V).

Did you adjust it when you installed it? If the signal value is less than .17V then the PCM sets this code. Could be an open or a short to ground in the signal circuit. Or you may have lost the 5Volt reference voltage.

Symptoms may include:
* Rough or low idle
* Stalling
* Surging
* No/little acceleration
* other symptoms may also be present

Causes: A code P0122 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: Some recommended troubleshooting and repair steps are:
* Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary
* Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.
* If recently replaced the TPS may need to be adjusted. On some vehicles the installation instructions call for the TPS to be properly aligned or adjusted, consult a repair manual for specifics.
* If there are no symptoms at all, the problem may be intermittent and clearing the code may resolve the issue temporarily. If this is the case then you should definitely check the wiring to be sure it's not rubbing on anything, grounding, etc. The code may come back.


Hope helps (remember to rate this answer).

Posted on Mar 01, 2011

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I'm assuming that you are talkin about P0122 Code - Throttle Position Sensor/Switch A Circuit Low Input

A P0122 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. On some vehicles that lower limit is 0.17 - 0.20 volts (V).

Did you adjust it when you installed it? If the signal value is less than .17V then the PCM sets this code. Could be an open or a short to ground in the signal circuit. Or you may have lost the 5Volt reference voltage.

Symptoms may include:
* Rough or low idle
* Stalling
* Surging
* No/little acceleration
* other symptoms may also be present

Causes: A code P0122 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: Some recommended troubleshooting and repair steps are:
* Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary
* Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.
* If recently replaced the TPS may need to be adjusted. On some vehicles the installation instructions call for the TPS to be properly aligned or adjusted, consult a repair manual for specifics.
* If there are no symptoms at all, the problem may be intermittent and clearing the code may resolve the issue temporarily. If this is the case then you should definitely check the wiring to be sure it's not rubbing on anything, grounding, etc. The code may come back.

Hope helps (remember comment and rate this).

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P1299 Vacuum Leak Found (IAC Fully Seated)

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Not sure if you have solved this or not yet but these are your error code read outs. They would cause your problems.

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2003 jeep liberty air bag light on is it easy to fix


The system needs to be checked for cades. Airbag codes are pulled out of the ECU with the use of a scanner tool. A good auto mechanic shop will have this or you can go to the dealer. YOU SHOULD NOT TRY TO REPAIR THIS YOURSELF,YOU COULD ACTIVATE THE AIRBAG!!!!!

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