Output State Test
- 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.
- 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.
- 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.
NOTE:
On early production "E, F" series and Bronco models equipped with 4.9L engines and automatic transmissions, a service code "15" will always occur in the "Key On-Engine Off phase of the EEC-IV "Self-Test". No drive conditions are associated with this code. If code "15" occurs in the "Continuous Memory" phase of "Self-Test", perform action required by the "Quick Test" procedure.