DTC 66

DTC 66 Instrument panel system communication bus malfunction (+B short)

CIRCUIT DESCRIPTION




This DTC is output when +B or GND short occurs on instrument panel system communication bus. If +B or GND short is detected on instrument panel system communication bus, separate it by bus cut relay in Body ECU No. 1 and Body ECU No. 2 to prevent while communication buses' failure.

Wiring Diagram:

Step 1:

Step 2 - 3:

Step 4 - 5:

Step 6 - 7:

Step 8 - 9:

Step 10 - 11:

Step 12 - 13:

Step 14 - 15:

Step 16 - 17:

Step 18 - 19:

INSPECTION PROCEDURE

HINT: On the system structure point of view, this DTC cannot display meter. In case of checking DTC, please use hand held tester.