For 1990-2009 cars

The DTCs in the EBCM/EBTCM memory are erased in one of two ways:

• | Scan tool method.

• | Ignition cycle default.

Whichever method is used, be sure to verify proper system operation and absence of DTCs when the clearing procedure is completed.

DTCs cannot be cleared by unplugging the EBCM/EBTCM, disconnecting the battery cables, or by turning the ignition OFF (except on the 50th cycle of ignition cycle default without the malfunction reappearing).