Closed Throttle Position Switch Malfunction

What This Means

The closed throttle position switch is not signaling properly when the throttle is fully closed. This switch helps the computer know when the driver has released the accelerator.

Common Symptoms

• Idle speed issues
• Rough deceleration
• A/C idle issues
• Check engine light on

Common Causes

• Misadjusted TPS
• Faulty throttle switch
• Carbon on throttle plate
• Wiring issue
• Connector damage

Estimated Repair Cost