Self-Diagnostic Test

The content of this article reflects the changes called out by TSB 26-12-00.

1. With the ignition switch in the OFF position simultaneously press the RESET and C/T buttons and hold.
2. Turn ignition switch ON, then release RESET and C/T buttons.
3. OTIS lights all segments on the VFD for 2 - 4 seconds. Check for segments that are not illuminated.
4. If OTIS displays PASS, the module is OK.
5. If OTIS displays FAIL, replace the module.
6. If OTIS displays bus, check for an open or a short in the PCI bus communication wire.
7. Press the RESET or the STEP button to exit self-test.