Throttle/Pedal Position Sensor "B" Minimum Stop Performance
P2113 indicates that the throttle or pedal position sensor B is reading below its minimum expected voltage threshold. This sensor failure prevents the engine control module from accurately determining driver input, which can result in severe drivability issues including stalling and loss of vehicle control.
What You Might Notice
- Lack of throttle response
- Limited or no acceleration
- Engine stall during idle
- Hesitation when accelerating
- Cruise control inoperative
Most Common Causes
- 1
Defective throttle position sensor B
The sensor itself has failed internally, sending a low voltage signal that falls below the minimum acceptable range. This is the most common cause of P2113.
- 2
Corroded or loose electrical connector
Poor connection at the sensor harness can cause signal dropout or intermittent low voltage readings. Corrosion or loose pins create high resistance in the circuit.
- 3
Damaged wiring or short to ground
A short circuit or damaged wiring in the sensor circuit allows voltage to bleed off to ground, causing the signal to drop below minimum threshold.
- 4
Engine control module (ECM) malfunction
In rare cases, a faulty ECM can misinterpret normal sensor signals or fail to process them correctly, triggering the code.
How to Diagnose It
- 1
Check Defective throttle position sensor B — The sensor itself has failed internally, sending a low voltage signal that falls below the minimum acceptable range. This is the most common cause of P2113.
- 2
Check Corroded or loose electrical connector — Poor connection at the sensor harness can cause signal dropout or intermittent low voltage readings. Corrosion or loose pins create high resistance in the circuit.
- 3
Check Damaged wiring or short to ground — A short circuit or damaged wiring in the sensor circuit allows voltage to bleed off to ground, causing the signal to drop below minimum threshold.
- 4
Check Engine control module (ECM) malfunction — In rare cases, a faulty ECM can misinterpret normal sensor signals or fail to process them correctly, triggering the code.
How to Fix It
- 1
Replace throttle position sensor B
Remove the failed sensor from the throttle body or pedal assembly and install a new OEM or quality replacement sensor. Verify proper voltage output after installation.
- 2
Inspect and clean electrical connector
Disconnect the sensor harness and inspect for corrosion, bent pins, or damage. Clean contacts with electrical contact cleaner and reconnect firmly. Check for bent pins and straighten or replace connector if necessary.
- 3
Repair wiring and check for shorts
Inspect the wiring harness from the sensor to the ECM for cuts, abrasions, or pinches. Repair any damaged insulation and test circuit continuity with a multimeter to rule out shorts to ground.
- 4
Test and replace ECM if needed
If sensor and wiring check out normal, use a diagnostic scanner to verify signal voltage is actually low. If readings are normal but code persists, the ECM may be faulty and require replacement.
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