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Home >> Hyundai >> 1994 >> Sonata V6-3.0L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Ignition Switch-ST and Transaxle Range >> System Description
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System Description





DESCRIPTION
When the ignition switch is set to the ST position, the battery voltage is applied through the ignition switch and transaxle range switch to the Engine control module. If the selector lever is not in the "park" or "neutral" the battery voltage will not reach the engine control module. Based on this signal the engine control module determines the automatic transaxle load and drives the idle speed control motor to maintain optimum idle speed.

TROUBLESHOOTING HINTS
If the transaxle range switch harness is normal but the transaxle range switch output is abnormal, check adjustment of the control cable.
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