Control Circuit Inspection

IG "OFF"
Disconnect the cooling fan relay (high) (Condenser fan relay #1, 2).
IG "ON"&ENG "OFF"
Measure voltage between Fan Relay Control (High) terminal of the Cooling fan relay (high) (Condenser fan relay #1, 2) harness connector and chassis ground.
1. Specification: Approx. 2.5V
Fig 1: Measuring Voltage Between Fan Relay Control (High) Terminal Of Cooling Fan Relay (High) Harness Connector & Chassis Ground (1 Of 2)
Courtesy of HYUNDAI MOTOR CO.

Fig 2: Measuring Voltage Between Fan Relay Control (High) Terminal Of Cooling Fan Relay (High) Harness Connector & Chassis Ground (2 Of 2)
Courtesy of HYUNDAI MOTOR CO.
Is the measured voltage within specifications?
YES
1. Substitute with a known - good PCM and check for proper operation.
If the problem is corrected, replace PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others.

NO
1. Repair open or short in control circuit, and go to VERIFICATION OF VEHICLE REPAIR procedure.