Toyota Tacoma manuals

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

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the manual transaxle system.

    *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS

(a) Refer to the How to Troubleshoot ECU Controlled Systems in Introduction section.

Click here

NEXT

3.

INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

HINT:

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

NEXT

4.

CHECK CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the CAN communication system is functioning normally.

HINT:

  • Refer to CAN Bus Check in CAN Communication System.

    Click here

  • The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communications system.

Result

Proceed to

CAN communication system DTCs are not output.

A

CAN communication system DTCs are output.

B

B

GO TO CAN COMMUNICATION SYSTEM

A

5.

CHECK AND CLEAR DTCS AND FREEZE FRAME DATA*

(a) Refer to DTC Check/Clear.

Click here

NEXT

6.

SELECT CHECK MODE DIAGNOSIS*

(a) Refer to Check Mode Procedure.

Click here

NEXT

7.

CHECK FOR DTC*

(a) Proceed to DTC Check/Clear.

Click here

Result

Proceed to

DTCs are not output.

A

DTCs are output.

B

B

GO TO STEP 12

A

8.

SYMPTOM SIMULATION

(a) Refer to Symptom Simulation.

Click here

NEXT

9.

COMPONENT INSPECTION

NEXT

10.

REPAIR OR REPLACE

NEXT

11.

CONFIRMATION TEST

NEXT

END

12.

DIAGNOSTIC TROUBLE CODE CHART

(a) Proceed to Diagnostic Trouble Code Chart.

Click here

NEXT

13.

CIRCUIT INSPECTION*

NEXT

14.

IDENTIFICATION OF PROBLEM

NEXT

15.

REPAIR OR REPLACE

NEXT

16.

CONFIRMATION TEST

NEXT

END

Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM ...

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of pro ...

Other materials:

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DESCRIPTION When the destination information in the millimeter wave radar sensor assembly and forward recognition camera do not match, DTC C1A0A is stored. DTC No. Detection Item DTC Detection Condition Trouble Area MIL C1A0 ...

System Description
SYSTEM DESCRIPTION 1. CRUISE CONTROL SYSTEM The cruise control system makes it possible to drive at a desired speed without using the accelerator pedal. ECM controls the throttle opening angle based on signals from switches and sensors. The microcomputer which controls the cruise control syst ...

Precaution
PRECAUTION 1. PRECAUTIONS WHEN USING TECHSTREAM (a) When using the Techstream with the engine switch off to troubleshoot: Connect the Techstream to the DLC3, and turn a courtesy light switch on and off at 1.5 second or less intervals until communication between the Techstream and vehicle begin ...

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