Mazda P0123 Throttle Position Sensor/Accelerator Position Pedal Circuit High Input

Description

OBD-II Trouble Code Description for P0123 Mazda

Throttle/Pedal Position Sensor/Switch “A” Circuit High

What does this mean?

OBD2 Code P0123 Mazda definition:
A P0123 Mazda code means that the the car’s computer has detected that the TPS (throttle position sensor) is reporting too high a voltage.

Symptoms

Possible sumptoms of OBD code P0123 Mazda
Rough idle High idle Surging other symptoms may also be present

Causes

Possible causes of OBD code P0123 Mazda
A code P0123 Mazda 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.

Related Codes

P0120 Mazda P0121 Mazda P0122 Mazda P0123 Mazda P0124 Mazda


The OBD2 Code Information Be Applicable For Mazda:

2013 Mazda MX-5,2013 Mazda MX-5,2013 Mazda CX-9,2013 Mazda CX-5,2013 Mazda 6,2013 Mazda 5,2013 Mazda 3,2012 Mazda MX-5,2012 Mazda BT-50,2012 Mazda 3,2011 Mazda 6,2011 Mazda 5,2011 Mazda 2,2010 Mazda 3,2009 Mazda 6,2009 Mazda 2 ,2008 Mazda 6,2008 Mazda 6,2008 Mazda 5,2008 Mazda 2,2007 Mazda CX-9,2007 Mazda CX-7,2006 Mazda MX5,2006 Mazda 6,2006 Mazda 3,2005 Mazda Atenza,2004 Mazda 6,2004 Mazda 5,2003 Mazda 2,2002 Mazda 6

 

Note:

1. The list of automotive Makes at the right edge of the screen. The currently selected ODB-ii codes is for the Mazda makes.

2. Look up the other OBD II Trouble Codes, please use the search box. Enter the 5 character trouble codes in the search box and submit the search.

3. Don’t assume a particular OBD-II code means the same for other auto manufacturers as there are many makes specific codes in use.

4. If your OBD-II trouble codes are for a different car, select that vehicle series before searching for the diagnostic codes because not all OBD2 codes used by one manufacture are used by the other makes.

5. The information contained on this site is presented for informational purposes only. We are not responsible for any actions you take on your vehicle. If you have any doubt as to repairs on your vehicle, please contact your technician.