Sensor Test Mode
- Run the system through the ATM Test Mode. Press and hold the ATM test button until the desired test code appears on the read-out box display. Release the ATM button. Move the Read/Hold switch to the "Hold" position.NOTE: Since sensor access codes are the same as some ATM test codes, the ATM test circuit will turn on before the Read/Hold switch is moved to the "Hold" position.
- The computer will now use the diagnostic read-out box to display the output of the selected sensor.
SENSOR TEST MODES
| Mode | Sensor Checked |
|---|---|
| 91 | O2 Sensor |
| 92 | Coolant Sensor |
| 93 | Cooling Fan Sensor |
| 96 | Speed Sensor |