Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: 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 vehicle-to-vehicle distance set value can be changed by operating the steering pad switch assembly (distance control switch) while the dynamic radar cruise control system is controlling vehicle speed in vehicle-to-vehicle distance control mode.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

CAUTION / NOTICE / HINT

NOTICE:

  • Before replacing the ECM, refer to Registration.

    w/o Smart Key System: Click here w/ Smart Key System: Click here

    w/ Smart Key System: Click here

  • The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

    Click here

  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
  • If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Learning.

    Click here

PROCEDURE

1.

READ VALUE ON TECHSTREAM (DISTANCE CONTROL SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Radar Cruise 2 / Data List.

(e) Read the Data List according to the display on the Techstream.

Powertrain > Radar Cruise2 > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Distance Control Switch

Distance control switch signal

ON or OFF

ON: Distance control switch on

OFF: Distance control switch off

-

OK:

The Data List item shown in the table changes according to the operation of the steering pad switch assembly (distance control switch).

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Remove the steering pad switch assembly.

Click here (b) Inspect the steering pad switch assembly.

(b) Inspect the steering pad switch assembly.

Click here

NG

REPLACE STEERING PAD SWITCH ASSEMBLY

OK

3.

INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

(a) Remove the spiral cable with sensor sub-assembly.

Click here (b) Inspect the spiral cable with sensor sub-assembly.

(b) Inspect the spiral cable with sensor sub-assembly.

Click here

NG

REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

OK

4.

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA AND BODY GROUND)

(a) Disconnect the S8 spiral cable with sensor sub-assembly connector.

(b) Disconnect the F46 forward recognition camera connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

S8-12 (DIST) - F46-3 (LKSW)

Always

Below 1 Ω

S8-2 (ECC) - Body ground

Always

Below 1 Ω

S8-12 (DIST) or F46-3 (LKSW) - Body ground

Always

10 kΩ or higher

OK

REPLACE FORWARD RECOGNITION CAMERA

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Cruise Main Indicator Light Circuit
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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 indicat ...

Other materials:

Light Sensor Circuit Malfunction (B1244)
DESCRIPTION This DTC is output when a failure of the automatic light control sensor circuit is detected. DTC Code DTC Detection Condition Trouble Area B1244 When either condition below is met: Malfunction of light sensor ...

Precaution
PRECAUTION CAUTION: The vehicle is equipped with SRS, which consists of a driver airbag, front passenger airbag, side airbags and curtain shield airbags and knee airbags. Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy ...

Inspection
INSPECTION PROCEDURE 1. INSPECT OIL CLEARANCE (a) Using a micrometer and caliper gauge, measure the oil seal clearance. Standard clearance: 0.021 to 0.043 mm (0.0008 to 0.0017 in.) Maximum clearance: 0.07 mm (0.0028 in.) If it is greater than the maximum, replace the vane pump assembly. ...

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