P2123 Toyota Code - Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
Quick Answer
The P2123 diagnostic trouble code for Toyota vehicles indicates an issue with the Throttle Pedal Position Sensor/Switch 'D' Circuit Input High. Common causes include Faulty throttle pedal position sensor or switch, Wiring issues or loose connections in the circuit, Corrosion or damage to the sensor or switch. 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
- P2123 Toyota indicates Throttle Pedal Position Sensor/Switch 'D' Circuit Input High.
- Common causes
- Common causes include Faulty throttle pedal position sensor or switch, Wiring issues or loose connections in the circuit, Corrosion or damage to the sensor or switch.
- 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.
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Code P2123 Toyota Description
The P2123 diagnostic trouble code for Toyota vehicles indicates an issue with the Throttle Pedal Position Sensor/Switch 'D' Circuit Input High. This means that the Engine Control Module (ECM) has detected a higher than expected voltage signal from the throttle pedal position sensor or switch in circuit 'D'.
Common Causes of P2123 Toyota
- Faulty throttle pedal position sensor or switch
- Wiring issues or loose connections in the circuit
- Corrosion or damage to the sensor or switch
- ECM software or programming issues
- Environmental factors such as moisture or debris affecting sensor operation
Symptoms of P2123 Toyota
- Rough idling or stalling
- Reduced engine power and acceleration
- Hesitation or jerking during acceleration
- Check Engine Light illuminated on the dashboard
- Limp mode activation, limiting vehicle speed and performance
How to Fix P2123 Toyota
- Begin by performing a thorough inspection of the throttle pedal position sensor and circuit connections.
- Test the sensor using a multimeter to check for proper voltage output and resistance.
- Replace the throttle pedal position sensor if it is found to be faulty or damaged.
- Repair any wiring issues or connections in the circuit.
- Clear the diagnostic trouble codes from the ECM using a scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P2123 Toyota
The cost of repairing a Throttle Pedal Position Sensor/Switch 'D' Circuit Input High issue can vary depending on the specific cause of the problem and the cost of parts and labor. On average, the repair cost for this type of issue can range from $150 to $400, including parts and labor. However, it is important to note that labor rates and repair costs can vary significantly based on location, the make and model of the vehicle, and the specific diagnosis time required. It is advisable to consult with a trusted auto repair shop for an accurate cost estimate based on your vehicle's specific needs.
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Information for Specific Toyota Models
- P2123 2006 Toyota Camry — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2007 Toyota Camry — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2008 Toyota Camry — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2009 Toyota Camry — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2010 Toyota Camry — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2011 Toyota Camry — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2001 Toyota Highlander — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2002 Toyota Highlander — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2003 Toyota Highlander — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2004 Toyota Highlander — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2005 Toyota Highlander — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2006 Toyota Highlander — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2007 Toyota Highlander — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2013 Toyota RAV4 — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2014 Toyota RAV4 — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2015 Toyota RAV4 — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2016 Toyota RAV4 — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2017 Toyota RAV4 — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
- P2123 2018 Toyota RAV4 — Throttle Pedal Position Sensor/Switch 'D' Circuit Input High
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