What Does P2168 Mean?
The PCM has detected that throttle/pedal position sensor 'F' is not reaching its expected maximum voltage or position during operation. This is a redundant sensor circuit fault affecting electronic throttle control correlation.
Common Causes
45%
Faulty accelerator pedal position sensor (APP sensor F circuit failure)
30%
Wiring harness damage, corrosion, or connector issues in APP sensor F circuit
15%
PCM internal fault or software calibration issue
10%
Mechanical restriction in accelerator pedal travel or damaged pedal assembly
Diagnostic Steps
1
Step 1: Monitor live data for APP sensor F voltage throughout full pedal travel range and compare to sensor E
2
Step 2: Physically inspect accelerator pedal for binding, obstruction, or restricted travel to maximum position
3
Step 3: Inspect APP sensor F wiring harness and connectors for damage, corrosion, or loose connections
4
Step 4: Test APP sensor F voltage supply (5V reference) and ground circuits with multimeter
5
Step 5: Perform throttle/pedal position relearn procedure, replace APP sensor assembly if readings are out of specification
Estimated Repair Cost
$150 - $600
Parts + labor, varies by vehicle and location
The PCM has detected that throttle/pedal position sensor 'F' is not reaching its expected maximum voltage or position during operation. This is a redundant sensor circuit fault affecting electronic throttle control correlation.
The most common cause of P2168 (Throttle/Pedal Position Sensor "F" Maximum Stop Performance) is: Faulty accelerator pedal position sensor (APP sensor F circuit failure)
Typical repair costs for P2168 range from $150 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May cause reduced engine power mode, limiting acceleration capability. Vehicle may experience hesitation or limited throttle response affecting safe operation in traffic.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2168 to identify the root cause.
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Quick Info
Category
Powertrain
System
Electronic Throttle Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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