Toyota Tundra Service Manual: Extension Module Malfunction (B1552,B158A,B15BA)

Toyota Tundra Service Manual / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System / Extension Module Malfunction (B1552,B158A,B15BA)

DESCRIPTION

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

DTC Code

DTC Detection Condition

Trouble Area

B1552

Internal malfunction of the extension module

Stereo component tuner assembly

B158A

Screen noise adjustment fails

B15BA

When either of the conditions below is met:

  • Internal IC malfunction
  • Tuner malfunction

CAUTION / NOTICE / HINT

NOTICE:

After replacing the stereo component tuner assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary.

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs (See page ).

(b) Check for DTCs (See page ).

OK:

No DTCs are output.

Result

Result

Proceed to

OK

A

NG (for Column Shift Type)

B

NG (for Floor Shift Type)

C
A

USE SIMULATION METHOD TO CHECK

B

REPLACE STEREO COMPONENT TUNER ASSEMBLY

C

REPLACE STEREO COMPONENT TUNER ASSEMBLY

    HD Radio Tuner Malfunction (B1551,B15A0,B15AD,B15B0,B15B3,B15B4,B15B7)

    Voice Recognition Microphone Disconnected (B1579)

    See More:

    Toyota Tundra Service Manual > Sfi System: Mass Air Flow Circuit Low (P0102,P0103)
    DESCRIPTION The Mass Air Flow (MAF) meter is a sensor that measures the amount of air flowing through the throttle valve. The ECM uses this information to determine the fuel injection time and to provide the appropriate air-fuel ratio. Inside the MAF meter, there is a heated platinum wire which is e ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2026 Copyright www.ttundra.com
    0.0128