Description
OBD-II Trouble Code Description for P0123 Isuzu
Throttle/Pedal Position Sensor/Switch “A” Circuit High
What does this mean?
OBD2 Code P0123 Isuzu definition:
A P0123 Isuzu 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 Isuzu
Rough idle High idle Surging other symptoms may also be present
Causes
Possible causes of OBD code P0123 Isuzu
A code P0123 Isuzu 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.
The OBD2 Code Information Be Applicable For Isuzu:
2011 Isuzu Rodeo 3.0 Denver,2008 Isuzu Pickup,2007 Isuzu Ascender,2002 Isuzu Axiom XST Concept,2002 Isuzu Axiom XSR Concept,2001 Isuzu Zen Concept,2001 Isuzu GBX Concept,2001 Isuzu Axiom XSF Concept
Note:
1. The list of automotive Makes at the right edge of the screen. The currently selected ODB-ii codes is for the Isuzu makes.
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