Monitor GDS Data

Connect GDS to Data Link Connector (DLC).
Engine start.
Monitor "Alternator duty cycle, PWM signal" parameter on GDS.

Fig 1: Scantool Display - Current Data
Courtesy of HYUNDAI MOTOR CO.
Are the parameters displayed correctly?
YES

Fault is intermittent caused by poor contact in the sensor's and/or PCM's connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

NO

Go to "TERMINAL&CONNECTOR INSPECTION " procedure.