Component Inspection

Ignition off & Engine Off.
Disconnect "ATM solenoid valve connector.
Connect GDS to Data Link Connector (DLC) and select Simulation mode.
Input specification frequency to signal of Output speed sensor by simulation mode.

Fig 1: Display - Output 200Hz → 198 RPM
Courtesy of HYUNDAI MOTOR AMERICA

Fig 2: Display - Output 300Hz → 298 RPM
Courtesy of HYUNDAI MOTOR AMERICA

The values are subject to change according to vehicle model or conditions.
Is measured Output speed sensor value changed by Output frequency?
YES
- Substitute with a known-good Input speed sensor and then go to "VERIFICATION OF VEHICLE REPAIR " procedure
NO
- Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.