Signal Circuit Inspection

1. IG "OFF" and disconnect auto cruise switch connector.
2. IG "ON" & ENG "OFF".
3. Measure voltage between terminal 1 of auto cruise switch harness connector and chassis ground.

   Specification:  Approx. 5V

   Fig 1: Measuring Voltage Between Terminal 1 Of Auto Cruise Switch Harness Connector And Chassis Ground

   Courtesy of HYUNDAI MOTOR CO.
4. Is the measured voltage within specification

YES 

• Go to "COMPONENT INSPECTION " procedure.

NO 

• Go to "Check short in harness" as follows.

1. IG "OFF" and disconnect auto cruise switch connector and PCM connector.
2. Measure resistance between terminals 1 and 2 of auto cruise switch harness connector.
3. Measure resistance between terminals 1 and 3 of auto cruise switch harness connector.

   Specification:  Infinite

   Fig 2: Measuring Resistance Between Auto Cruise Switch Terminals

   Courtesy of HYUNDAI MOTOR CO.
4. Is the measured resistance within specification?

YES 

• Go to "COMPONENT INSPECTION " procedure.

NO 

• Go to "Check short in harness" as follows.

1. IG "OFF" and disconnect auto cruise switch connector and PCM connector.
2. Measure resistance between terminal 1 of auto cruise switch harness connector and terminal 25 of PCM harness connector.

   Specification:  Below 1 Ω

   Fig 3: Measuring Resistance Between Auto Cruise Switch Terminal 1 And PCM Terminal 25

   Courtesy of HYUNDAI MOTOR CO.
3. Is the measured resistance within specification?

YES 

• Go to "COMPONENT INSPECTION " procedure.

NO 

• Repair open in harness, and go to "VERIFICATION OF VEHICLE REPAIR " procedure.