P258B - Vacuum Pump Control Range/Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Vacuum Pump Control
  • Vacuum Pump Control harness is open or shorted
  • Vacuum Pump Control circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P258b Description

The Powertrain Control Module (PCM) monitors the Vacuum Pump Control Circuit signal. The PCM sets the OBDII code when the Vacuum Pump Control Circuit signal is out factory specifications.
OBDII Code P258b - Vacuum Pump Control Range/Performance - AutoCodes.com

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P258B Comments

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