Multiplex Communication System

Detection Item (Part 1 Of 2):

Detection Item (Part 2 Of 2):

If a malfunction code is displayed during the DTC check check the circuit listed for that code in the table (Proceed to the appropriate circuit).

HINT:
- DTC 66, 67 and 71 are not output through open door warning light on meter because of system itself.
- DTC 21 - 26, 51 and 52 don't mean switch abnormal but notify how switch works. If DTC is not output when operating switch, it means failure of switch contact. If DTC is output when not opening switch, it means stick of switch.