1. When replacing the PCM, perform the following:
2. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [ZY, Z6].)
3. Disconnect the negative battery cable.
4. Remove the air cleaner cover. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [ZY, Z6].)
5. When replacing the PCM on the vehicles, perform the following:
6. Install in the reverse order of removal.