Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Stereo Component Amplifier Malfunction (B15A3)

DESCRIPTION

This DTC is stored when a malfunction occurs in the stereo component amplifier assembly.

DTC No.

DTC Detection Condition

Trouble Area

B15A3

When one of the conditions below is met:

  • Internal power supply malfunction
  • DSP error
  • EEPROM error

Stereo component amplifier assembly

PROCEDURE

1.

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.

OK

USE SIMULATION METHOD TO CHECK

NG

REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

AV Signal Stoppage (Low Battery Voltage) (B158F)
DESCRIPTION This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the navigation receiver assembly dropping temporarily. DTC Code DTC ...

Short in GPS Antenna (B15C0,B15C1)
DESCRIPTION These DTCs are stored when a malfunction occurs in the navigation antenna assembly. DTC No. DTC Detection Condition Trouble Area B15C0 ...

Other materials:

Removal
REMOVAL PROCEDURE 1. REMOVE FRONT WHEEL 2. DRAIN DIFFERENTIAL OIL 3. SEPARATE FRONT SPEED SENSOR (a) Remove the bolt and separate the front speed sensor. (b) Disengage the 2 clamps. (c) Remove the bolt and separate the speed sensor wire harness from the steering knuckle. 4. SEPARATE TIE ...

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. ...

Inspection
INSPECTION PROCEDURE 1. REMOVE SPIRAL CABLE SUB-ASSEMBLY WITH SENSOR (a) If there are any defects as mentioned below, replace the spiral cable sub-assembly with a new one: Scratches, cracks, dents or chips on the connector or the spiral cable sub-assembly. (b) Inspect the spiral ca ...

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