Pretrip Inspection Test (PTI)

The PTI (Pretrip Inspection Test) initiates a test of the unit’s electrical, engine, and alternator system components. To perform a PTI complete the following steps:

Note The unit will not start a PTI until all active messages have been acknowledged. The display will show “ACKNOWLEDGE MESSAGE” if there are messages that have not been acknowledged when trying to perform a PTI.

  1. Place the On/Off switch in the “ON” position.

  2. Press the ENTER key or the ESCAPE key to enter the Main Menu, if necessary.

  3. Press the UP or DOWN key to scroll up or down through the Main Menu to the Commands Menu.

  4. Press the ENTER key to enter the Commands Menu.

  5. The PTI submenu will be displayed.

  6. Press the ENTER key to start the PTI.

  7. The controller then performs the PTI. Observe the unit for proper operation and functions during the PTI. The display shows which component is being tested, and the test result (PASSED of FAILED).

    • The engine stops.

    • The controller beeps to test the buzzer.

    • A display test is performed. Watch the display to verify it is operating properly.

    • The PTI test is run in the following order:

      • ECU Ignition Test

      • ECU Run Relay Test

      • ECU Fuel Relay Test

      • ECU CAN Connect Test

      • Start Engine Test

      • Low High Speed Test

      • Output Voltage Test

    • When it comes to the “Start Engine Test, the display shows BEEP ON (and you can hear the beep) and then BEEP OFF and the Engine starts. The Engine remains on for the rest of the PTI.

    • For the last three tests, the display shows the results readings as well as the PASS or FAIL. i.e.

      • For “START ENGINE TEST”, the display shows “RUNNING 1491” for example above the RESULT: PASS (or fail if applicable).

      • For “LOW SPEED HIGH SPEED TEST” the display shows “1508 1802” for example to signify the low and high speed in RPMs. The display says “RESULT: PASS” if the speeds are acceptable.

      • For “OUTPUT VOLTAGE TEST” the display shows “0429 0476” in the middle. The display says “RESULT: PASS” if the output voltage is acceptable.

    8. Note If a component fails its test, the PTI will stop at that point and display “FAILED - REBOOT”. Correct the problem and repeat the PTI by pressing the ENTER Key.

  8. When the PTI is complete, the test ends automatically and the controller display shows “PTI PASSED (or FAILED) - REBOOT”. Turn the On/Off Switch Off and back On to reboot and return the unit to normal operation.

    If an operating problem occurs during the PTI, view and correct any alarms or messages. Then acknowledge the alarms or messages and repeat the PTI.

    9. Note Acknowledge the alarms or messages ONLY after the alarm codes are documented and problems repaired.

PTI Submenu

Parent topic: Commands Menu