Toyota Tacoma (2015-2018) Service Manual: 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 radio and display receiver assembly dropping temporarily.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B158F |
A video or audio signal is interrupted when the battery voltage drops. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
CHECK VEHICLE SIGNAL (OPERATION CHECK) |
|
(a) Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle
Signal in Operation Check (See page |
|
(b) Check that the battery voltage.
Standard voltage:
11 to 14 V
HINT:
This display is updated once per second. As a result, it is normal for the display to lag behind the actual switch operation.
| NG | .gif) |
GO TO STEP 3 |
|
.gif)
|
2. |
CHECK FOR DTC |
(a) Clear the DTCs (See page .gif)
).
(b) Check for DTCs (See page ).
OK:
No DTCs are output.
| OK | |
USE SIMULATION METHOD TO CHECK |
| NG | |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
3. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY POWER SOURCE) |
|
(a) Disconnect the radio and display receiver assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R30-4 (+B1) - Body ground |
Always |
11 to 14 V |
|
*a |
Front view of wire harness connector (to Radio and Display Receiver Assembly) |
| OK | |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
USB Device Malfunction (B1585)
DESCRIPTION
This DTC is stored when a malfunction occurs in a connected device.
DTC No.
DTC Detection Condition
Trouble Area
B1585
USB De ...
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:
Installation
INSTALLATION
PROCEDURE
1. INSTALL TRANSMISSION CONTROL CABLE ASSEMBLY
(a) Install the transmission control cable assembly from outside the vehicle
body and attach the 3 claws of the cable retainer.
(b) Install the 2 nuts.
Torque:
5.5 N·m {56 kgf·cm, 49 in·lbf}
(c) Connect the transmissi ...
Disposal
DISPOSAL
CAUTION / NOTICE / HINT
CAUTION:
Before performing pre-disposal deployment of any SRS part, review and closely
follow all applicable environmental and hazardous material regulations. Pre-disposal
deployment may be considered hazardous material treatment.
PROCEDURE
1. PRECAUTION
...
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Communication Method
Airbag sensor assembly
Main body ECU
Front seat inner belt assembly LH buckle switch
CAN
Combination mete ...
