Signal Circuit Inspection

Check for Short to Power in Signal circuit
1. IG KEY OFF.
2. Disconnect APS harness connector.
3. IG KEY ON.
4. Measure voltage between APS1 signal terminal of APS harness connector and chassis ground.
  Specification : Approx. 0V
  
  Fig 1: Measuring Voltage Between APS1 Signal Terminal Of APS Harness Connector & Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is voltage within specification?
  YES
  - Go to next procedure.
  NO
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.