What Does P2133 Mean?
The PCM has detected a voltage signal from Throttle/Pedal Position Sensor F that exceeds the acceptable threshold. This indicates an open circuit, loss of ground, or sensor internal failure causing high voltage output.
Safety Warning
Vehicle will immediately enter limp mode with severely restricted throttle. May cause sudden power loss while driving, creating dangerous traffic situations.
Common Causes
40%
Accelerator pedal position sensor internal open circuit or failure
30%
Open circuit in APP sensor signal wire or broken conductor
18%
Poor connection or backed-out pins at accelerator pedal connector
9%
Loss of sensor ground causing voltage reference to float high
3%
PCM internal fault with pull-up resistor circuit
Diagnostic Steps
1
Step 1: Inspect accelerator pedal connector for loose connection, pushed-out pins, or corrosion; perform connector pull test
2
Step 2: Backprobe APP sensor F signal wire and check voltage (reading near 5V indicates open circuit)
3
Step 3: Verify sensor ground circuit continuity and measure resistance to battery negative (should be less than 0.5 ohms)
4
Step 4: Check 5V reference voltage supply at pedal sensor connector with key on (should be stable 4.8-5.2V)
5
Step 5: If all circuits test good and connections are secure, replace accelerator pedal assembly
Estimated Repair Cost
$200 - $600
Parts + labor, varies by vehicle and location
The PCM has detected a voltage signal from Throttle/Pedal Position Sensor F that exceeds the acceptable threshold. This indicates an open circuit, loss of ground, or sensor internal failure causing high voltage output.
The most common cause of P2133 (Throttle/Pedal Position Sensor/Switch "F" Circuit High) is: Accelerator pedal position sensor internal open circuit or failure
Typical repair costs for P2133 range from $200 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle will immediately enter limp mode with severely restricted throttle. May cause sudden power loss while driving, creating dangerous traffic situations.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2133 to identify the root cause.
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Quick Info
Category
Powertrain
System
Electronic Throttle Control (ETC)
Difficulty
Type
Generic (SAE)
Recommended Tools
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