Toyota Tacoma (2015-2018) Service Manual: Cruise SET Indicator Light Circuit
DESCRIPTION
The ECM illuminates the cruise control SET indicator by sending indicator output demand signals to the combination meter assembly via CAN communication. The cruise control SET indicator illuminates when the dynamic radar cruise control system is controlling vehicle speed. The cruise SET indicator light circuit uses CAN communication. If the cruise control SET indicator is not functioning correctly, check for CAN communication DTCs before troubleshooting this circuit.
CAUTION / NOTICE / HINT
CAUTION:
Observe the following items for safety reasons when using Techstream:
- Before using the Techstream, read the instruction Techstream.
- Prevent the Techstream cable from being caught on the pedals, shift lever or steering wheel when driving with the Techstream connected to the vehicle.
- When driving the vehicle for testing purposes, 2 people are required. One person should operate the Techstream while the other drives the vehicle.
NOTICE:
- Before replacing the ECM, refer to Registration.
w/o Smart Key System: Click here
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w/ Smart Key System: Click here
- 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. |
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) Perform the Active Test according to the display on the Techstream.
Body Electrical > Combination Meter > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Meter Display 1 |
Multi-information display |
OFF, 6 to 0 or All |
- |
|
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 | .gif) |
GO TO METER / GAUGE SYSTEM |
|
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|
2. |
READ VALUE USING TECHSTREAM (-SET SWITCH) |
(a) Turn the cruise control system on using the cruise control main switch (ON-OFF button).
(b) Drive at a speed between approximately 40 km/h (25 mph) and 180 km/h (110 mph).
(c) Enter the following menus: Powertrain / Radar Cruise1 / Data List.
(d) Read the Data List according to the display on the Techstream.
Powertrain > Radar Cruise1 > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
-SET Switch |
-SET switch status |
ON or OFF |
ON: -SET switch on OFF: -SET switch off |
- |
|
Result |
Proceed to |
|---|---|
|
The cruise control SET indicator illuminates and turns off according to the operation of the cruise control main switch (-SET switch). |
A |
|
The cruise control SET indicator does not illuminate but the Data List item -SET Switch changes according to the operation of the cruise control main switch (-SET switch). |
B |
|
The cruise control SET indicator does not illuminate and the Data List item -SET Switch does not change according to the operation of the cruise control main switch (-SET switch). |
C |
| A | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| B | |
REPLACE COMBINATION METER ASSEMBLY |
| C | |
REPLACE ECM |
Cruise Main Indicator Light Circuit
DESCRIPTION
When the dynamic radar cruise control system is turned on using the cruise control
main switch (ON-OFF button), the cruise control indicator (vehicle-to-vehicle distance
control mode) ...
Other materials:
Installation
INSTALLATION
PROCEDURE
1. INSTALL FRONT AXLE HUB
2. INSTALL FRONT SUSPENSION UPPER ARM
(a) Install a new nut and clip.
Torque:
110 N·m {1122 kgf·cm, 81 ft·lbf}
3. INSTALL FRONT SUSPENSION LOWER ARM
(a) Install the front suspension lower arm with the 2 bolts.
Torque:
160 N·m {1631 ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY
(a) Check the operation.
(1) Apply battery voltage between the terminals and check that the plunger
operates.
Text in Illustration
*a
Component without harness con ...
Transmission Fluid Temperature Sensor "B" Circuit Short to Ground (P274011)
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
...
