P0123 Isuzu Code - Throttle Position Sensor 1 High Voltage
Quick Answer
The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0123 Isuzu indicates Throttle Position Sensor 1 High Voltage.
- Common causes
- Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0123 Isuzu Description
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
What are the Possible Causes of the DTC P0123 Isuzu?
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
How to Fix the DTC P0123 Isuzu?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0123 Isuzu code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0123 Isuzu Code
1. What are the common symptoms of OBDII code P0123 on an Isuzu related to the throttle position sensor?
- Common symptoms include difficulty accelerating, poor fuel efficiency, stalling, and an illuminated check engine light.
2. What does OBDII code P0123 indicate in an Isuzu?
- OBDII code P0123 indicates that the throttle position sensor 1 is reporting a higher voltage than expected by the engine control module.
3. What are some possible causes of OBDII code P0123 in an Isuzu?
- Possible causes include a faulty throttle position sensor, wiring issues, a dirty throttle body, or a problem with the engine control module.
4. How can I diagnose the throttle position sensor 1 high voltage issue on my Isuzu?
- Diagnose by checking the sensor's wiring, inspecting the throttle body for cleanliness, testing the sensor's voltage output, and scanning for other potential related codes.
5. Can I drive my Isuzu with OBDII code P0123?
- It is not recommended to drive your Isuzu with code P0123 as it can lead to performance issues and potential safety hazards.
6. How can I repair OBDII code P0123 on my Isuzu?
- Repair options include replacing the throttle position sensor, repairing any damaged wiring, cleaning the throttle body, or reprogramming the engine control module.
7. Is it necessary to reset the OBDII code P0123 after repair on an Isuzu?
- Yes, it is important to reset the code using an OBDII scanner after repairing the issue to clear the check engine light and monitor for any recurring problems.
8. Can a DIY enthusiast fix OBDII code P0123 on an Isuzu?
- Depending on the skill level and tools available, a DIY enthusiast may be able to fix code P0123 by following repair guides and using proper diagnostic equipment.
9. How much does it typically cost to repair OBDII code P0123 on an Isuzu?
- The cost of repairing code P0123 can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.
10. Are there any preventative maintenance tips to avoid OBDII code P0123 in an Isuzu?
- Regularly cleaning the throttle body, checking the throttle position sensor for proper operation, and addressing any engine performance issues promptly can help prevent code P0123 in an Isuzu.
Discuss the causes and fixes for P0123 Isuzu OBDII Code
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i have replaced the tps sensor had the old one tested it was bad. put the new one on ran good for a min. then started to die and cut off starts right back up and does the same thing engine code will not erase
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