Troubleshooting Contents: Notes
CAUTION:
During diagnostics, a diagnostic trouble code associated with other system may be set when the electric motor switch is turned on with connector(s) disconnected. On completion, confirm all systems for diagnostic trouble code(s). If diagnostic trouble code(s) are set, erase them all.
WARNING:
Since the radiator fan rotates during CAN bus line diagnostics, make sure that no one is servicing the hood room before diagnosing the CAN bus line. Since the CAN communication stops when diagnosing the CAN bus line, the ETACS-ECU detects the time-out of the EV-ECU, and activates the radiator fan to prevent overheating as fail-safe.
Troubleshooting of electronic control systems for which the scan tool can be used follows the basic outline described below. Even in systems for which the scan tool cannot be used, part of these systems still follow this outline.