Toyota Tacoma (2015-2018) Service Manual: Indicator Circuit
DESCRIPTION
The forward recognition camera sends indicator illumination request signals to the combination meter assembly via CAN communication.
CAUTION / NOTICE / HINT
NOTICE:
When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (CAN BUS CHECK) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: System Select / CAN Bus Check.
|
Result |
Proceed to |
|---|---|
|
All of the ECUs and sensors that are currently connected to the CAN communication system are displayed. |
A |
|
None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed. |
B |
| B | .gif) |
GO TO CAN COMMUNICATION SYSTEM |
|
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|
2. |
CHECK DTC (HEALTH CHECK) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: System Select / Health Check.
(e) Check DTCs.
|
Result |
Proceed to |
|---|---|
|
No DTCs are output. |
A |
|
DTCs are output. |
B |
| B | |
GO TO DTC CHART |
|
|
3. |
PERFORM ACTIVE TEST USING TECHSTREAM (METER DISPLAY 1) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Meter Display 1 |
Multi-information display |
ALL or OFF |
Perform the test with the vehicle stopped and engine idling |
|
Result |
Proceed to |
|---|---|
|
The multi-information display in the combination meter assembly turns on or off according to the operation of the Active Test. |
A |
|
The multi-information display in the combination meter assembly does not turn on or off according to the operation of the Active Test. |
B |
| B | |
GO TO METER / GAUGE SYSTEM |
|
|
4. |
READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Chassis / LKA/LDA / Data List.
(e) Read the Data List according to the display on the Techstream.
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
LDA Control |
Control status of lane departure alert system |
Prohibit or Permit |
Prohibit: Control prohibited Permit: Control permitted |
- |
|
Result |
Proceed to |
|---|---|
|
The lane departure alert indicator illuminates and turns on according to the operation of the lane departure alert main switch |
A |
|
The lane departure alert indicator does not illuminate but the Data List item LDA Control changes according to the operation of the lane departure alert main switch |
B |
|
The lane departure alert indicator does not illuminate and the Data List item LDA Control does not change according to the operation of the lane departure alert main switch |
C |
| A | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| B | |
REPLACE COMBINATION METER ASSEMBLY |
| C | |
REPLACE FORWARD RECOGNITION CAMERA |
Steering Pad Switch Circuit
DESCRIPTION
The forward recognition camera receives a lane departure alert switch signal
from the steering pad switch assembly.
WIRING DIAGRAM
for 2TR-FE
for 2GR-FKS
CAUTION / NOTICE / HINT ...
Power Source Circuit
DESCRIPTION
This circuit provides power to operate the forward recognition camera.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before pe ...
Other materials:
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 / HINT
NOTICE:
When replacing the combination meter assembly, always replace it with
...
Data Signal Circuit between Radio Receiver and Extension Module
DESCRIPTION
The stereo component tuner assembly sends the image data signal to the radio
and display receiver assembly via this circuit.
WIRING DIAGRAM
PROCEDURE
1.
CHECK NO. 1 NAVIGATION WIRE
(a) Disconnect the R33 radio and display receiver assembly connect ...
Removal
REMOVAL
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting
the cable from the negative (-) battery terminal. Therefore, make sure to read the
disconnecting the cable from the negative (-) battery terminal notices before pr ...
