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Front DoorDiagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to "See page" in the DTC chart.
Wireless Door Lock Control System
DTC Code
Detection Item
...
Accessories, spare parts and modification of your Toyota
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Extension Module Malfunction (B1552,B158A,B15BA)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the stereo component tuner
assembly.
DTC No.
DTC Detection Condition
Trouble Area
B1552
Internal malfunction of the navigation ECU
Stereo component tuner assembl ...