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My engine light comes off and on and the Jeep is throwing code # P0122....What is the code for??

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P0122 (M) Accelerator Position Sensor (APPS) Signal Voltage Too Low APPS voltage input below the minimum acceptable voltage.

Posted on Aug 30, 2010

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How do i fix?


P0122 throttle/pedal position sensor/switch A circuit low input
P0223 throttle/pedal position sensor/switch B circuit high input
P2101 throttle actuator ctrl motor circuit rang/perf
P2104 throttle actuator ctrl sys-forced idle
P2110 throttle actuator ctrl sys-forced limited rpm

Here is the meaning of the codes hope this helps

Sep 20, 2015 | Cars & Trucks

1 Answer

Engine code p0122 keeps coming on


P0122 ACURA - Throttle Position Sensor 'A' Circuit Low Voltage.Possible causes- Faulty throttle position sensor.
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection When is the code detected?An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

Dec 21, 2012 | 1998 Plymouth Grand Voyager

1 Answer

2004 - JEEP LIBERTY SPORT 3.7/V6 ENGINE LIGHT ON !!! CODE #(P0122) What is it ? Can I fix it ? Dealership fix only ?


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).

Mar 01, 2011 | Jeep Liberty Cars & Trucks

1 Answer

I have a 2003 Jeep Liberty. My check engine light comes on frequently. The diagnositc check always says its the "Pedal Alignment Sensor". What is pedal alignment and how do I have this checked and/or...


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).

Sep 22, 2010 | Jeep Liberty Cars & Trucks

1 Answer

2002 Jeep cherokee check engine light on. code p0122 sensor reading 12.5% at idle. does anyone know what it should read at idle?


Throttle/Pedal Position Sensor A Circuit Low Input

This usually means the sensor is unplugged or you have an open circuit. Check the wires to make sure there are no breaks in them.

Mar 04, 2010 | 2002 Jeep Grand Cherokee

1 Answer

2003 jeep G-Cherokee; stalling @ morning. engine light on -- p1282 & p0122.


1282 IS THE FUEL PUMP RELAY OR CONTROL CIRCUIT 0122 IS THE THROTTLE POSITION SENSOR

Dec 21, 2009 | 2000 Jeep Grand Cherokee

1 Answer

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.

Jul 29, 2009 | 2002 Jeep Liberty

2 Answers

2004 Mitsubishi Colt 1.1 Engine management light & code P0122


My girlfriends car has just started with the same problem, a limp home from the garage, a sleep over night and als well next day, for a while... I spoke to Mitsubishi and they have told me the TPS (throttle positioning sensor) is on the accelorator pedle assembly. There PN for this is MN125791 and its circa £88 + VAT. After exhausting all other options I may attempt this replacement and will advise the results.

Nov 14, 2008 | 2006 Mitsubishi Colt

1 Answer

1998 Jeep Wrangler Sport codes P0121 and P0122


did you check voltage to sensors if you need help with proedure, contact me, or you may try patrs houses on line in how to section.

Oct 04, 2008 | 1992 Jeep Wrangler

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