PRECAUTION INITIALIZATION NOTICE:
Before replacing the ECM, refer to Service Bulletin (for Immobiliser System).
When the ECM is replaced, update the ECU security key...
Other information:
GENERAL INFORMATION
A large number of ECU controlled systems are used in this vehicle. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ECU controlled system circuits one by one...
INSTALLATION PROCEDURE 1. INSTALL HORN BUTTON ASSEMBLY (a) Check that the ignition switch is off. (b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal. CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system...