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Decreased Assist At All Times

  1. Disconnect electrical connector from power steering pump actuator and note if symptom still exists. Power steering pump actuator is located on rear of power steering pump. See Figure.
  2. If symptom no longer exists, go to next step. If symptom still exists, problem is not in VES system. Check mechanical and hydraulic power steering system. See TESTING under LUBRICATION in STEERING SYSTEM - POWER RECIRCULATING BALL article.
  3. Check for inoperative speedometer and cruise control. If speedometer and cruise control operate properly, replace PSCM. See POWER STEERING CONTROL MODULE (PSCM)  under REMOVAL & INSTALLATION. If speedometer and cruise control is inoperative, repair Vehicle Speed Sensor (VSS) circuit. See G - TESTS W/CODES article in ENGINE PERFORMANCE section.
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