Toyota Tacoma (2015-2018) Service Manual: Lost Communication with Front Camera Module (U023A)
DESCRIPTION
These DTCs are stored when the CAN communication system is malfunctioning.
|
DTC No. |
DTC Detecting Condition |
Trouble Area |
|
|---|---|---|---|
|
U023A |
Lost Communication With Image Processing Module"A" |
The main body ECU (multiplex network body ECU) does not receive data from the forward recognition camera for approximately 10 secondsor more. |
|
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Clear the DTCs.
Click here .gif)
(b) Check for DTCs.
Click here
OK:
DTC U023A is not output.
Result|
Proceed to |
|---|
|
OK |
|
NG |
| A | .gif) |
USE SIMULATION METHOD TO CHECK |
| B | |
GO TO CAN COMMUNICATION SYSTEM |
Automatic High Beam Camera (B124C)
DESCRIPTION
The main body ECU (multiplex network body ECU) detects a high beam headlight
illumination request signal of the automatic high beam system from the forward recognition
camera
...
Automatic High Beam System does not Operate or Operation Indicator does not
Illuminate
DESCRIPTION
The main body ECU (multiplex network body ECU) controls the automatic high beam
system based on signals received from the forward recognition camera.
WIRING DIAGRAM
CAUTION / NOTICE ...
Other materials:
Front Evaporator Temperature Sensor
Inspection
INSPECTION
PROCEDURE
1. INSPECT COOLER THERMISTOR SENSOR
(a) Check the resistance.
(1) Measure the resistance and check the results in accordance with the
values in the table below.
Standard:
Tester Connection
Condition
...
System Description
SYSTEM DESCRIPTION
1. SYSTEM DESCRIPTION
HINT:
The skid control ECU is built into the hydraulic brake booster.
(a) ABS (Anti-lock Brake System)
The ABS helps prevent the wheels from locking when the brakes are applied firmly
or when braking on a slippery surface.
(b) Multi-terrain Anti-lock ...
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender ECU
Receiver ECU
Signal
Line
*1: for Vacuum Brake Booster
*2: for Hydraulic Brake Booster
Forward Recognition Camera
Combination Meter Assembly
...
