System Check Mode (DTC Check)

SYSTEM CHECK MODE (DTC CHECK)




1. DIAGNOSIS CHECK

HINT: Diagnosis system mode is operated as follows.

HINT: The multi-display controller sub-assy inspects the devices composing the sub AVC-LAN (RSE system).

a. Starting main AVC-LAN diagnosis mode.

HINT:
- When the diagnosis mode of main AVC-LAN is started, the sub AVC-LAN also enters the diagnosis mode and the diagnosis operation is performed on the multi-display controller sub-assy.




- Use a switch & volume assy to operate the diagnosis mode.

b. Finishing the diagnosis mode.
Turn the ignition switch off.




2. SERVICE CHECK MODE (DTC CHECK)

HINT: "Service Check Mode" is operated as follows.




a. Service Check Mode







1. Start the Diagnosis System.

HINT: Service Check displays the check results based on the information obtained from each component's response to "System Check Execution" and "Diagnosis Memory Request", and the information of "Current DTC Notification" (the "Unit Check" that will be displayed on the next screens.).




2. Read Check Result

HINT:
- After repairing and checking, press "Code CLR" for more than 3 seconds to delete diagnosis memory.
- After deleting diagnosis memory, press "Recheck" and make sure "OK" is displayed on the screen.







3. "EXCH", "CHEK" and "Old" can be used as switches to activate "Unit Check Mode" for detailed information. When inspecting the malfunctioning area, refer to the DTC code list.

HINT:
- Detecting a unit DTC activates the "Unit Check Mode" on the screen.
- In the "Unit Check Mode", DTCs which are identified as "EXCH" in the "Service Check" are classified into "Current" DTCs and "Past" DTCs.










4. "CHECK" can be used as a switch to activate the "LAN Monitor" for detailed information. When inspecting the malfunctioning area, refer to the DTC code list.

HINT:
- Detecting no LAN DTC activates the LAN Monitor on the screen.
- The LAN Monitor chooses and displays LAN DTCs out of the DTCs for components identified as "CHEK" in the LAN Monitor.




5. Read Check Result

HINT:
- After repairing and checking, press "Code CLR" for more than 3 seconds to delete diagnosis memory.
- After deleting diagnosis memory, press "Recheck" and make sure "OK" is displayed on the screen.