Cougar & Thunderbird
- This monitor has a self-diagnostic mode. To enter self-diagnostic mode, start vehicle, then within 16 seconds press and hold RESET switch for 4 seconds. After 4 seconds, the entire display will flash. Monitor is now in tach input test. The display flashing sequence indicates tach signal pulses are being measured proportional to engine RPM. The faster the engine RPM, the faster the display sequence flashes.
- If only oil change display is flashing, then tach input signal to monitor is missing. Self-diagnostics cannot be entered until this signal is provided. See appropriate WIRING DIAGRAMS in this article.
- To advance to next test while display is flashing, press and release RESET switch. Monitor is now in oil temperature test. OIL light is on and oil temperature is indicated by display segment lighting. See OIL TEMPERATURE TEST table.OIL TEMPERATURE TEST
Oil Temperature Display Lights Cold Green Bar, OIL Cool Green Bar, SOON, OIL Normal Green Bar, SOON, NOW, OIL Warm Green Bar, SOON, NOW, LOW RADIATOR, OIL Hot Green Bar, SOON, NOW, LOW RADIATOR, RADIATOR, OIL - Press and release RESET switch to enter fluid test. LOW light will come on for low reading of each fluid. It is normal for a false low oil display to occur.