Toyota Tacoma (2015-2018) Service Manual: Cruise SET Indicator Light Circuit

Toyota Tacoma (2015-2018) Service Manual / Cruise Control / Dynamic Radar Cruise Control System(for 2gr-fks) / 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

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.

(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

GO TO METER / GAUGE SYSTEM

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).

(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	-

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

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE COMBINATION METER ASSEMBLY

REPLACE ECM

Distance Control Switch Circuit

DESCRIPTION The distance control switch is used to set the distance for vehicle-to-vehicle distance control mode. The distance control switch is installed in the steering pad switch assembly. The ...

Neutral Position Switch Circuit

DESCRIPTION The ECM uses the neutral position switch installed to the manual transmission assembly to detect when the transmission is in the neutral position. WIRING DIAGRAM PROCEDURE ...

Other materials:

Fail-safe Chart
FAIL-SAFE CHART HINT: If any of the following auto cancel conditions are detected while the dynamic radar cruise control system is controlling vehicle speed, the system clears the stored vehicle speed and cancels control of vehicle speed by the dynamic radar cruise control system. Automatic ...

Removal
REMOVAL CAUTION / NOTICE / HINT NOTICE: Release the vacuum from booster by depressing the brake pedal several times. Then remove the brake master cylinder from brake booster. PROCEDURE 1. PRECAUTION NOTICE: After turning the ignition switch off, waiting time may be required before disconnect ...

Data Signal Circuit between Navigation Receiver Assembly and Extension Module
DESCRIPTION The stereo component tuner assembly sends the sound data signal or image data signal from a device to the navigation receiver assembly via this circuit. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: After replacing the stereo component tuner assembly of vehicles subscribed to ...