Signal Circuit Inspection

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

Check for short to ground in signal harness
1. Measure resistance between signal terminal of CMPS #1 harness connector and chassis ground.
  Specification: Infinite
  
  Fig 1: Measuring Resistance Between Signal Terminal Of CMPS #1 Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
2. Is resistance within the specification?
  YES
  - Go to next step as below
  NO
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short to battery in signal harness
1. Disconnect PCM connector
2. Ignition "ON" & Engine "OFF"
3. Measure voltage between signal terminal of CMPS #1 harness connector and chassis ground
  Specification: Approx. 0V
  
  Fig 2: Measuring Voltage Between Signal Terminal Of CMPS #1 Harness Connector And Chassis Ground
  Courtesy of HYUNDAI MOTOR AMERICA
4. Is voltage within the specification?
  YES
  - Go to next step as below
  NO
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for open in signal harness
1. Ignition "OFF"
2. Measure resistance between signal terminal of CMPS #1 harness connector and CMPS #1 signal terminal of the PCM connector.
  Specification: Approx. 0Ω
  
  Fig 3: Measuring Resistance Between Signal Terminal Of CMPS #1 Harness Connector And CMPS #1 Signal Terminal Of PCM Connector
  Courtesy of HYUNDAI MOTOR AMERICA
3. Is resistance within the specification?
  YES
  - Go to next step as below
  NO
  - Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.