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Home >> Chevrolet >> 1999 >> Tracker 2WD L4-1.6L VIN 6 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> Vehicle On-Board & Scan Tool Diagnostics >> Engine Scan Tool Data Definitions >> Power Steering Switch
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Power Steering Switch

The scan tool will display an ON signal whenever the steering wheel is turned right or left far enough to increase the power steering fluid pressure above a specified amount. This signal enables the PCM to adjust the engine idle in order to maintain acceptable engine performance.
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