Signal Circuit Inspection

Check for open in harness.
1. Ignition "OFF".
2. Disconnect APS connector and PCM connector.
3. Measure resistance between terminal "3" of APS harness connector and "25" of PCM harness connector.
  1. Specification: Approx. below 1Ω
  Fig 1: Measuring Resistance Between Terminal 3 Of APS Harness Connector And 25 Of PCM Harness Connector
4. Is the measured resistance within specifications?
  YES
  - Go to 2 "Check for short to ground in harness" as below.
  NO
  - Check for open in signal harness, Repair replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for short to ground in harness.
1. Ignition "OFF".
2. Disconnect APS connector and PCM connector.
3. Measure resistance between terminal "3" of APS harness connector and chassis ground.
  1. Specification: infinite
  Fig 2: Measuring Resistance Between Terminal 3 Of APS Harness Connector And Chassis Ground
4. Is the measured resistance within specifications?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Check for short to chassis ground in control harness, Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.