“The ‘M’ has a “DIAGNOSTIC MODE” that is not documented. Follow these steps to enter [at your own risk] into the diagnostic mode. – Start Engine [required if you want to see all available diagnostic options]– Turn OFF the Audio system– While pushing the SETTING button, rotate the radio’s VOLUME control either clockwise or counter-clockwise […]
350Z Diagnostic ECU Codes and How to Clear Them
Clearing Codes on the G35 and 350Z There are several ways to clear ECU error codes. – Scan Tool If using a scan tool, follow tool manufacturer’s instructions to clear Codes. – Manual Method Here is a quick way to reset your ECU. It is also known to clear codes thrown, and turn off the […]
1985-1988 Nissan Common OBD-I Codes
Article Series
-Verify that diagnostic mode selector is turned fully counterclockwise. -Turn ignition switch ON. -Make sure inspection lamps stay on. (Bulb check.) -Ture diagnostic mode selector fully clockwise. -Make sure inspection lamps display code 23 and 31. -Depress accelerator pedal and release. -Make sure inspection lamps display code 31. -Start engine, apply brakes and shift into […]
1989-1994 Nissan Common OBD-I codes
Article Series
-Access the ECU and position it for observing the diodes. -If the engine does not run, turn the key on and proceed to step #4. -Start the engine and warm it to operating temperature then idle. -Turn the diagnostic mode selector on the ECU fully clockwise until both diodes flash 3 times then turn the […]
