PCM/TCM 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: Scantool Display - OUTPUT 150Hz → 190 RPM
Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: Scantool Display - OUTPUT 250Hz → 316 RPM
Courtesy of KIA MOTORS AMERICA, INC.

* 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.