Throttle/Pedal Position Sensor Circuit Low
The P2132 code indicates that the throttle/pedal position sensor/switch circuit has a low voltage condition. This sensor is critical for the engine control module (ECM) to determine driver demand and control throttle opening. A low voltage reading can cause improper throttle response, reduced power, or limp mode.
01. Most Common Causes
- Faulty throttle position sensor
- Wiring or connector issues (shorts, opens, corrosion)
- Faulty accelerator pedal position sensor
- ECM failure (rare)
02. Symptoms You Will Notice
- Check Engine Light on
- Reduced engine power or limp mode
- Poor acceleration or hesitation
- Erratic idle or stalling
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to verify the code and check freeze frame data.
Step 2: Inspect the throttle/pedal position sensor wiring and connectors for damage, corrosion, or loose connections.
Step 3: Test the sensor voltage and resistance per manufacturer specifications.
Step 4: If wiring and sensor are okay, check for ECM issues or perform a relearn procedure.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
No, it can cause sudden loss of power or unsafe driving conditions. It's best to have it diagnosed and repaired promptly.
How much does it cost to fix?▼
Typically $50-$150 for diagnosis and sensor replacement, but costs can vary based on vehicle and labor rates.