Throttle/Pedal Position Sensor/Switch B Circuit Low

What This Means

The throttle/pedal position sensor B voltage is below the minimum expected threshold. Modern drive-by-wire systems use multiple position sensors for safety redundancy, and this secondary sensor is reporting abnormal readings.

Common Symptoms

• Reduced engine power mode
• Poor throttle response
• Limp mode activation
• Check engine light on

Common Causes

• Faulty throttle position sensor
• Accelerator pedal sensor failure
• Wiring damage
• Connector corrosion
• PCM circuit issue

Estimated Repair Cost