Control Circuit Inspection

WARNING: This page is about a different variant/trim than selected.

■ Check for Open in Harness

Ignition "OFF"
Disconnect Intake actuator and A/C control unit main harness connector.
Measure resistance between FRE (+) Terminal of Intake actuator harness connector and FRE (+) Terminal of A/C-ECU harness connector.
Measure resistance between REC (-) Terminal of Intake actuator harness connector and REC (-) Terminal of A/C-ECU harness connector.
Specification: below 1

Fig 1: Measuring Resistance Between Intake Actuator And A/C-ECU Harness Connectors
Courtesy of HYUNDAI MOTOR AMERICA
Is the measured resistance within specification?
YES
- Go to "Check Short to Ground in Harness " as follows.
NO
- Check for open in harness.
- Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check Short to Ground in Harness

Ignition "OFF"
Disconnect Intake actuator and A/C control unit main harness connector.
Measure resistance between FRE (+) Terminal of Intake actuator harness connector and chassis ground.
Measure resistance between REC (-) Terminal of Intake actuator harness connector and chassis ground.
Specification : Infinity

Fig 2: Measuring Resistance Between Intake Actuator Harness Connector And Chassis Ground
Courtesy of HYUNDAI MOTOR AMERICA
Is the measured resistance within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Check for short to ground in control harness.
- Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.