P1683 Throttle Valve Default Position Spring Performance Problem

• OBD2 Code: P1683
• Description: Throttle valve default position spring performance problem.
• Definition: This code indicates a malfunction in the throttle valve control system, specifically related to the default position spring’s ability to return the throttle to its default or closed position when required.

p1683 throttle valve default position spring performance problem

Typical severity: Medium

Common Causes

p1683 Throttle Valve Default Position Spring Performance Problem

Common Causes:

• Faulty throttle valve default position spring
• Throttle valve stuck in closed position
• Wiring issues in the throttle control system
• Defective throttle position sensor

 

Common Misdiagnosis

OBD2 Code: P1683

Description: Throttle Valve Default Position Spring Performance Problem

Common Misdiagnosis: Replacing the throttle body without checking for wiring issues or a faulty throttle position sensor.

 

Common Diagnostic Steps

OBD2 Code: P1683

Description: Throttle Valve Default Position Spring Performance Problem

• Check for any stored trouble codes and freeze frame data to understand the conditions under which the code was set.
• Inspect the throttle body for carbon buildup or obstructions that may affect its movement.
• Examine the throttle valve spring for damage, wear, or improper installation.
• Test the throttle position sensor (TPS) for proper operation and correct voltage readings.
• Verify all electrical connections related to the throttle body are secure and free of corrosion.
• Perform a visual inspection of wiring harnesses for signs of damage or fraying.
• If applicable, check for updates on engine control module (ECM) software that may address this issue.
• Conduct a relearn procedure if necessary after repairs are made to ensure proper throttle operation.