B1267

B1267 / 67 - Instrument Panel System Communication Bus Malfunction (GND 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:

Steps 2 - 3:

Steps 4 - 5:

Steps 6 - 7:

Steps 8 - 9:

Steps 10 - 11:

Steps 12 - 13:

Steps 14 - 15:

Steps 16 - 17:

Steps 18 - 19:

INSPECTION PROCEDURE

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