B1552

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: B1552, B158A; Extension Module Malfunction; 2013 MY Corolla [07/2012 -]
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 Reading and Clearing Diagnostic Trouble Codes.

(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