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DTC P1588: Throttle Control Detected Loss Of Return Spring

P1588 - THROTTLE CONTROL DETECTED LOSS OF RETURN SPRING

Description:  The PCM tests the electronic throttle for the ability of the throttle plate to return to the default (limp home) position from both the open and closed positions. This DTC sets when the throttle does not return to the default (limp home) position.
Possible Causes: 
  • Obstruction in the throttle plate movement
  • Damaged electronic throttle body (ETB)
Diagnostic Aids:  Visually inspect the throttle plate for an obstruction.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DV .
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