Toyota Tacoma (2015-2018) Service Manual: HD Radio Tuner Malfunction (B1551,B158D,B15A0,B15B0,B15B3,B15B4,B15B7)

Toyota Tacoma (2015-2018) Service Manual / Audio / Video / Audio And Visual System / HD Radio Tuner Malfunction (B1551,B158D,B15A0,B15B0,B15B3,B15B4,B15B7)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the radio and display receiver assembly.

DTC No.	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	Radio and display receiver assembly
B158D	The internal video signal of the radio and display receiver assembly is interrupted.
B15A0	When either condition below is met: Bus malfunction EEPROM error
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: Mechanism drive signal malfunction Load/Eject malfunction Read mechanism malfunction Mechanical malfunction
B15B7	"Bluetooth" module malfunction

PROCEDURE

CHECK DTC

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

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

OK:

No DTCs are output.

USE SIMULATION METHOD TO CHECK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

LVDS Signal Malfunction (from Extension Module) (B1532)

DESCRIPTION The stereo component tuner assembly and the radio and display receiver assembly are connected by an LVDS communication line. This DTC is stored when an LVDS communication error occurs ...

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 B ...

Other materials:

Automatic Disconnecting Differential Motor Limit Switch Circuit (P17A4)
DESCRIPTION When the A.D.D. actuator switches between 2WD and 4WD, the DL1 and DL2 terminals of the limit switch and ADD terminal of the A.D.D. position switch change to one of the following ON/OFF combinations listed in the table below. Terminal In 2WD Switchi ...

Transmission Fluid Temperature Sensor "B" Circuit Short to Battery or Open (P274015)
DESCRIPTION The No. 2 ATF temperature sensor is installed in the transmission valve body assembly. If the ECM detects an abnormally high ATF temperature near this sensor, it illuminates the warning indicator. HINT: The temperature of ATF easily rises when towing, climbing hills, in traffic, ...

Stereo Component Amplifier Disconnected (B15D3)
DESCRIPTION The navigation receiver assembly and stereo component amplifier assembly are connected by the AVC-LAN communication line. When an AVC-LAN communication error occurs between the navigation receiver assembly and stereo component amplifier assembly, this DTC will be stored. ...