Signal Circuit Inspection

Check for open or short to ground in signal circuit
1. With ignition "OFF", disconnect the power steering switch.
2. Ignition "ON" & Engine "OFF"
3. Measure voltage between terminal 1 of the power steering switch harness connector and chassis ground
  Specification : Approx. B+
4. Is voltage within the specification?
  YES
  - Go to next step.
  NO
  - Check for short to battery in signal circuit. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
Check for short to battery in signal circuit
1. With ignition "OFF", disconnect ECM connector
2. Ignition "ON" & Engine "OFF"
3. Measure voltage between terminal 1 of the switch harness connector and chassis ground.
  Specification : Approx. 0V
4. Is voltage within the specification?
  YES
  - Go to TERMINAL AND CONNECTOR INSPECTION .
  NO
  - Check for short to battery in signal circuit. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure