Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • The wireless door lock control system troubleshooting procedures are based on the premise that the power door lock control system is operating normally. Check the power door lock control system first before troubleshooting the wireless door lock control system. Use this procedure to troubleshoot the wireless door lock control system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS

HINT:

  • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
  • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
  • The following 5 items are important points in the problem analysis:

    What

    Vehicle model, system name

    When

    Date, time, occurrence frequency

    Where

    Road conditions

    Under what conditions?

    Running conditions, driving conditions, weather conditions

    How did it happen?

    Problem symptoms

NEXT

3.

INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

NEXT

4.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Click here

Result

Proceed to

DTC is not output

A

DTC is output

B

B

GO TO CAN COMMUNICATION SYSTEM

A

5.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result

Proceed to

Fault is not listed in Problem Symptoms Table

A

Fault is listed in Problem Symptoms Table

B

B

GO TO STEP 7

A

6.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check

Click here (b) Terminals of ECU

(b) Terminals of ECU

Click here (c) Data List / Active Test

(c) Data List / Active Test

Click here

NEXT

7.

REPAIR OR REPLACE

NEXT

8.

CONFIRMATION TEST

NEXT

END

System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU (Transmitter) Receiving ECU (Receiver) Signal Line Main body ECU (Multiplex ...

Operation Check
OPERATION CHECK 1. NOTICE WHEN CHECKING THE FOLLOWING (a) Wireless door lock/unlock function: This wireless door lock control function operates only when the following 3 conditions are met: (1) ...

Other materials:

Open or Short in Master Cylinder Pressure Sensor (C1421,C1423,C1424,C142A,C1449)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area C1421 Open or Short in Master Cylinder Pressure Sensor Any of the following is detected: When voltage at terminal +BS is 9.5 V or ...

Brake Switch "A" Circuit Open (P057113)
DESCRIPTION DTC No. DTC Detection Condition Trouble Area MIL Note P057113 Vehicle Condition: Cruise control operating Malfunction Status: Stop light switch assembly circuit malfunction ...

Confirm Vehicle Headunit Functionality
PROCEDURE 1. CHECK CUSTOMER'S CELLULAR PHONE COMPATIBILITY (a) Go to TIS "Bluetooth" Compatibility Portal and check if the cellular phone is compatible. Result Result Proceed to Cellular phone is compatible ...

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