FixVault

Output State Test

  1. These checks are specified in the testing charts. Output State Test is used to diagnose each actuator. Test is performed in the Key On-Engine Off Self-Test mode after service codes have been sent. DO NOT  disable self-test, but momentarily depress throttle and release. All auxiliary EEC outputs will be activated at this time. Another throttle depression will turn them off.
  2. Connect DVOM to self-test output pin 4. Start the Key On-Engine Off Self-Test. When Continuous codes are completed, DVOM will read 0 volts. Depress accelerator to turn on actuators.
  3. Disconnect DVOM from pin 4 and connect to appropriate actuator. Measure voltage at actuator. Readings above 10.5 volts indicate actuators are on, readings below 2 volts indicate actuators are off. Each test will tell what action to take according to voltage shown on DVOM.
Fig 1: 2.3L OHC EEC-IV System Inputs/Outputs & Component Locations
G1307