Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Data List / Active Test

DATA LIST / ACTIVE TEST

1. DATA LIST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch ON.

(c) Turn the Techstream on.

(d) Enter the following menus:

Powertrain / Cruise Control / Data List.

(e) According to the display on the Techstream, read the Data List.

Cruise Control

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

CCS Vehicle Spd

Vehicle speed/min.: 0 km/h (0 mph), max.: 255 km/h (158 mph)

Actual vehicle speed

-

CCS Mem Vehicle Spd

Cruise control memorized speed/min.: 0 km/h (0 mph), max.: 255 km/h (158 mph)

Actual stored vehicle speed

-

Cruise Control

Cruise control system active condition/ON or OFF

ON: Cruise control activated

OFF: Cruise control deactivated

-

CCS Main SW M-CPU

Main switch signal (Main CPU)/ON or OFF

ON: Main switch on (Pushed on)

OFF: Main switch off (Pushed off)

"3"

CCS Ready M-CPU

Cruise control system standby condition (Main CPU)/ON or OFF

ON/OFF: Change ON/OFF each time Main SW is pushed in.

"1"

CCS Indicator M-CPU

Cruise indicator signal (Main CPU)/ON or OFF

ON: "CCS READY" ON

OFF: "CCS READY" OFF

"2"

Cancel Switch

CANCEL switch signal/ON or OFF

ON: CANCEL switch on

OFF: CANCEL switch off

-

SET/COAST Switch

-/SET switch signal/ON or OFF

ON: -/SET switch on

OFF: -/SET switch off

-

RES/ACC Switch

+/RES switch signal/ON or OFF

ON: +/RES switch on

OFF: +/RES switch off

-

Stop Light SW M-CPU

Stop light switch signal (Main CPU)/ON or OFF

ON: Brake pedal depressed

OFF: Brake pedal released

-

Cruise Operation Status

PNP switch signal (D position)/ON or OFF

ON: Shift lever in D

OFF: Shift lever not in D

-

CCS Request Torque

Cruise control request torque/min.: -1024 Nm, max.: 1016 Nm

Actual required torque

-

# Codes

Number of present trouble codes/min.: 0, max.: 255

Number of DTCs will be displayed

-

HINT:

  • "3" is OK but "1" is NG → ECM failure
  • "1" is OK but "2" is NG → DTC output or ECM failure
  • "3" is OK but CRUISE indicator does not come on → CRUISE main indicator, wire harness or ECM failure
Terminals Of Ecu
TERMINALS OF ECU 1. ECM Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition E14-20 (TC) - ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART If a trouble code is indicated while checking DTCs, inspect the circuit listed for that code in the table below, and proceed to the applicable page. Cruise Control Sy ...

Other materials:

Speed Signal Malfunction (B15C2)
DESCRIPTION The navigation receiver assembly receives a vehicle speed signal from the combination meter assembly and information from the navigation antenna assembly, and then adjusts the vehicle position. The navigation receiver assembly stores this DTC when the difference between the speed ...

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 ...

Rear Occupant Classification Sensor LH Collision Detection (B1787)
DESCRIPTION DTC B1787 is set when the occupant detection ECU receives a collision detection signal, which is sent by the occupant classification sensor rear LH when an accident occurs. DTC B1787 is also set when the front seat with adjuster frame assembly RH is subjected to a strong impact, ...

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