Power Circuit Inspection

■ Check Short to Ground in Harness 

1. Ignition "OFF"
2. Disconnect Digital Clock and Connect A/C control unit main harness connector.
3. Measure resistance between Power terminal of Digital Clock harness connector and chassis ground.

   Specification  : Infinity

   Fig 1: Measuring Resistance Between Power Terminal Of Digital Clock Harness Connector And Chassis Ground

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

   YES 

   • Go to Next procedure.

   NO 

   • Check for short to ground in harness.
   • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check for Open in Harness 

1. Ignition "OFF"
2. Disconnect Digital Clock and A/C control unit main harness connector.
3. Measure resistance between Power terminal of Digital Clock harness connector and Power terminal of A/C-ECU harness connector.

   Specification  : below 1

   Fig 2: Measuring Resistance Between Digital Clock And A/C-ECU Harness Connectors

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

   YES 

   • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
   • Substitute with a known-good Digital Clock and check for proper operation. If the problem is corrected, replace Digital Clock and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO 

   • Check for open in harness.
   • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.