Toyota Tacoma manuals

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

DATA LIST / ACTIVE TEST

DATA LIST

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.

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.

(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 / Pre-Collision 2 / Data List.

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

Body Electrical > Pre-Collision 2 > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Turn Light RH

Turn signal switch (right) status

ON or OFF

ON: Turn signal switch (right) on

OFF: Turn signal switch (right) off

-

Turn Light LH

Turn signal switch (left) status

ON or OFF

ON: Turn signal switch (left) on

OFF: Turn signal switch (left) off

-

PCS OFF Switch

Pre-collision system on/off status

ON or OFF

ON: Pre-collision system on

OFF: Pre-collision system off

-

PCS Indicator

"Pre-Collision System Malfunction Visit Your Dealer" display request signal

ON or OFF

ON: "Pre-Collision System Malfunction Visit Your Dealer" display requested

OFF: "Pre-Collision System Malfunction Visit Your Dealer" display not requested

-

PCS Disabled Indicator

"Pre-Collision System Unavailable" display request signal

ON or OFF

ON: "Pre-Collision System Unavailable" display requested

OFF: "Pre-Collision System Unavailable" display not requested

-

Pre-Collision Safety Warning Buz

Pre-collision system warning buzzer

Valid or Inval

Valid: Pre-collision system warning buzzer operation possible

Inval: Pre-collision system warning buzzer operation not possible

-

Pre-Collision Brake

Pre-collision braking function

Valid or Inval

Valid: Pre-collision braking operation possible

Inval: Pre-collision braking operation not possible

-

PBA Start

Pre-collision brake assist activation signal

OFF, Standby, Assist Lv1 or Assist Lv2

OFF: Pre-collision brake assist not operating

Standby: Brake pedal not depressed during pre-collision brake assist operation

Assist Lv1: Brake pedal depressed during pre-collision brake assist operation

Assist Lv2: Brake pedal firmly depressed during pre-collision brake assist operation

Signal status changes when the pre-collision brake assist is activated before a crash (Pre-collision brake will activate only in situations where the driver depresses the brake pedal)

Brake Assist Standby

-

-

-

Not applicable to this vehicle

Pre-Collision Brake Control

Pre-collision braking operational status

ON or OFF

ON: Pre-collision braking operating

OFF: Pre-collision braking not operating

-

AVS Start

-

-

-

Not applicable to this vehicle

VGRS Start

-

-

-

Not applicable to this vehicle

PBA Control

Pre-collision brake assist operational status

Valid or Invalid

Valid: Pre-collision brake assist control operation possible

Invalid: Pre-collision brake assist control operation not possible

-

Pre-Collision Safety Brake Ind

Pre-collision system alarm warning message status

ON or OFF

ON: Displayed

OFF: Not displayed

"BRAKE!" is displayed

PCS Crash Alarm Buzzer

Pre-collision system warning buzzer status

ON or OFF

ON: Pre-collision system warning buzzer sounding

OFF: Pre-collision system warning buzzer not sounding

-

Front Radar-Dirt History

Millimeter wave radar sensor assembly dirt history

ON or OFF

ON: History of excessive dirt

OFF: No history of excessive dirt

-

Front Radar-Environment Hist

Millimeter wave radar sensor assembly high temperature history

Good or Bad

Good: No history of high temperature

Bad: History of high temperature

-

Front Radar-Temperature Malfunction History

Millimeter wave radar sensor assembly abnormal temperature history

ON or OFF

ON: History of abnormal temperature

OFF: No history of abnormal temperature

-

Front Radar-Low Voltage History

Millimeter wave radar sensor assembly low voltage history

ON or OFF

ON: History of low voltage

OFF: No history of low voltage

If the engine starts 1 second or more after the ignition switch was turned ON, this item may change to ON

Front Recognition Camera-Blockage History

Forward recognition camera obstruction history

ON or OFF

ON: History of being obstructed

OFF: No history of being obstructed

-

Front Recognition Camera-Malfunction History

Forward recognition camera system unavailable history

ON or OFF

ON: History of being unavailable

OFF: No history of being unavailable

-

Destination Variation No

Destination country for millimeter wave radar sensor assembly

Destination Variation No or Not Available

Destination Variation No

-

Control Mode

ECU control mode status

Normal or Check Mode

Normal: Normal operation

Check Mode: Operating in control mode

-

PCS Operation State Retention Setting

PCS operation state retention setting customize setting

ON or OFF

ON: Customize setting set to ON

OFF: Customize setting set to OFF

-

PCS Alarm Activation Distance Retention Setting 1

PCS alarm activation distance retention setting 1 customize setting

ON or OFF

ON: Customize setting set to ON

OFF: Customize setting set to OFF

-

PCS Alarm Activation Distance Retention Setting 2

PCS alarm activation distance retention setting 2 customize setting

ON or OFF

ON: Customize setting set to ON

OFF: Customize setting set to OFF

-

PCS Alarm Activation Distance Retention Setting 3

PCS alarm activation distance retention setting 3 customize setting

ON or OFF

ON: Customize setting set to ON

OFF: Customize setting set to OFF

-

The Number of DTCs

Number of trouble codes

0 to 255

Number of DTCs will be displayed

-

ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(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 / Pre-Collision 2 / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Body Electrical > Pre-Collision 2 > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

PCS Crash Alarm Buzzer

Pre-collision system warning buzzer

ON / OFF

Test possible with ignition switch ON, vehicle stopped

Freeze Frame Data
FREEZE FRAME DATA DESCRIPTION (a) When a pre-collision system DTC is stored, the millimeter wave radar sensor assembly stores the current vehicle (ECU or sensor) state as Freeze Frame Data. CHECK ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Pre-collision System DTC No. Detection Item Link C1A02 Vehicle Information Not Obtained ...

Other materials:

Parking Brake System
Adjustment ADJUSTMENT PROCEDURE 1. INSPECT PARKING BRAKE LEVER TRAVEL (a) Fully pull the parking brake lever to engage the parking brake. (b) Release the lever to disengage the parking brake. (c) Slowly pull the parking brake lever all the way and count the number of clicks. Standard parkin ...

Removal
REMOVAL CAUTION / NOTICE / HINT NOTICE: If one of the camshaft timing gear bolts is already removed, do not remove any other camshaft timing gear bolts. PROCEDURE 1. REMOVE NO. 2 ENGINE UNDER COVER SUB-ASSEMBLY (w/ Off Road Package) 2. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY 3. REMOVE ...

Brake System Malfunction (C1A50)
DESCRIPTION When the pre-collision system is operating, the millimeter wave radar sensor assembly sends brake control signals to the skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake actuator assembly)*2. If the millimeter wave radar sensor assembly receives a vehicle st ...

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