B1552

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for Radio and Display Type): B1552, B158A: Extension Module Malfunction
B158A - Extension Module Noise Adjustment Malfunction

DESCRIPTION

These DTCs are stored when a malfunction occurs in the extension module.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC

(a) Clear the DTCs Navigation System (for Radio and Display Type).

(b) Recheck for DTCs and check if the same DTC is output again.

OK:

No DTCs are output.

NG -- REPLACE EXTENSION MODULE Removal

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting