Toyota Tundra Service Manual: HD Radio Tuner Malfunction (B1551,B15A0,B15AD,B15B0,B15B3,B15B4,B15B7)

Toyota Tundra Service Manual / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System / HD Radio Tuner Malfunction (B1551,B15A0,B15AD,B15B0,B15B3,B15B4,B15B7)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the navigation receiver assembly.

DTC Code

DTC Detection Condition

Trouble Area

B1551

When one of the conditions below is met:

  • "HD Radio" tuner decoder malfunction
  • "HD Radio" tuner audio output section malfunction
  • "HD Radio" tuner decoder RF/IF malfunction

Navigation receiver assembly

B15A0

When either of the conditions below is met:

  • Bus malfunction
  • EEPROM error

B15AD

When one of the conditions below is met:

  • Short to ground or +B, or open occurs in gyro signal circuit
  • Gyro sensor malfunction
  • GPS receiver malfunction

B15B0

Picture circuit (TFT unit) malfunction

B15B3

When one of the conditions below is met:

  • AM tuner PLL is unlocked
  • FM tuner PLL is unlocked
  • Tuner malfunction

B15B4

When one of the conditions below is met:

  • Mechanical communication error
  • Load/Eject malfunction
  • Read malfunction
  • Mechanical malfunction

B15B7

"Bluetooth" module malfunction

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 NAVIGATION RECEIVER ASSEMBLY

C

REPLACE NAVIGATION RECEIVER ASSEMBLY

    LVDS Signal Malfunction (from Extension Module) (B1532,B156C)

    Extension Module Malfunction (B1552,B158A,B15BA)

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