The OBD code P0122 for a GMC indicates an issue with the Throttle Position Sensor (TPS).
This code affects the TPS system/component.
Symptoms include the Engine Light being ON.
Common causes are a faulty Throttle Body Assembly or issues with the TPS circuit.
While not a severe issue, it can affect vehicle performance.
A possible fix is to inspect and repair any damaged wiring or connectors related to the TPS system.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
I know how frustrating it is to see that warning light pop up again and again. You don’t need to spend money at the mechanic just to clear it. With this pocket-friendly automatic car scanner, you can do it yourself in seconds and and avoid the time and inconvenience of driving to a mechanic. Just plug it in, connect to your Android or iOS phone, and instantly see live data. Understand the fault code, clear it right away, and decide if it’s something urgent or if you’re good to drive. It even monitors your car and sends notifications to your phone, so you’re always in control. Simple, fast, and stress-free—today’s offer price!
Symptoms of the Gmc p0122 OBD Code
The vehicle may experience issues related to the throttle position sensor circuit malfunction (GMC P0122).
- Symptoms: Engine Light ON.
- Reduced engine power.
- Hesitation or lack of response when pressing the accelerator pedal.
Do you know you can clear most fault codes—but some could mean serious danger? Don’t take chances with your safety or your family’s safety. This budget-friendly car scanner makes it easy to clear fault codes in seconds while showing you exactly what’s wrong. Plug it in, connect to your Android or iOS phone, and instantly check live data. You’ll know if it’s a minor issue you can clear or something serious that needs attention—so you can drive safely and stress-free. (Today’s Deal)
Causes of the Gmc p0122 OBD Code
Fault code P0122 on a GMC typically indicates an issue with the throttle position sensor circuit.
- Causes: Faulty Throttle Body Assembly.
- Throttle Body Assembly harness is open or shorted.
- Throttle Body Assembly circuit poor electrical connection.
- Faulty Engine Control Module (ECM).
Fixing Gmc Error Code p0122 Step By Step
Addressing GMC P0122 involves diagnosing and resolving issues with the throttle position sensor circuit low input.
- To fix GMC OBDII code P0122, first, review the ‘Possible Causes’ mentioned above and visually examine the corresponding wiring harness and connectors.
- Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Next, test the throttle position sensor (TPS) using a multimeter to verify its functionality.
- If the TPS is faulty, replace it with a new one.
- Clear the fault code using an OBDII scanner and test drive the vehicle to ensure the code does not return.
Cost Of Fixing Gmc p0122 Fault Code
The repair for GMC P0122 involves diagnosing and fixing an issue with the throttle position sensor.
The cost to diagnose and fix a GMC OBD code P0122 typically ranges from $75 to $150 per hour for labor rates.
With an estimated repair time of 1. 0 hour, the total cost could be around $75 to $150, depending on shop rates and the complexity of the issue.
Details of the Gmc p0122 OBD Code
GMC P0122 indicates a problem with the throttle position sensor circuit low voltage.
GMC OBD code P0122 means that the ECM has detected a low voltage signal from the throttle position sensor (TPS) circuit.
This code is triggered by the ECM when it receives a TPS signal that is lower than expected based on the vehicle’s operating conditions.
The throttle position sensor (TPS) is the component that triggers this fault code.
The TPS is located on the throttle body and is responsible for sending a voltage signal to the ECM that corresponds to the position of the throttle plate.
When the TPS sends a signal that is lower than expected, the ECM interprets this as a potential issue with the throttle position sensor circuit.
This can lead to drivability issues such as poor acceleration, rough idling, or stalling.
To diagnose and repair this issue, technicians typically perform tests to check the TPS circuit for proper voltage signals and continuity.
If a fault is found, the TPS may need to be replaced to resolve the P0122 fault code.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing GMC code P0122 related to throttle position sensor circuit low voltage.
OBDII code P0122 for GMC indicates an issue with the throttle position sensor circuit low voltage.
To diagnose, use a voltmeter to test the throttle position sensor’s signal wire for proper voltage.
Check for around 5 volts with the key on, engine off.
If the voltage is low, inspect the wiring harness and connectors for damage or corrosion.
Ensure the throttle position sensor is securely connected and functioning correctly.
If no visible issues are found, consider replacing the throttle position sensor.
Remember to clear the code after repairs and test drive to confirm the issue is resolved.
FAQ
Common causes of OBD code P0122 in a GMC vehicle include a faulty throttle body assembly, open or shorted harness, poor electrical connection, or faulty ECM.
Diagnose and fix OBD code P0122 in your GMC by checking throttle body assembly, harness, and ECM for faults. Inspect wiring and connectors for damage or corrosion.
It is not safe to continue driving with OBD code P0122 in a GMC vehicle. Review and inspect throttle body assembly and related wiring for faults.
Wrap Up
If your GMC is displaying OBD code P0122 and experiencing issues like poor acceleration, stalling, or rough idling, it may be caused by a faulty throttle position sensor, damaged wiring in the sensor circuit, or a problem with the sensor connector.
To address GMC OBD code P0122, start by checking the throttle position sensor and its wiring harness for any signs of wear, corrosion, or damage.
Test the sensor’s output voltage and resistance to determine if it needs replacement.
Inspect the sensor connector for any loose or bent pins that may be affecting the signal.
