Toyota Tacoma manuals

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

CAUTION / NOTICE / HINT

Techstream can be used in steps 3, 6, 9 and 12.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS

NEXT

3.

CHECK AND CLEAR DTCS AND FREEZE FRAME DATA

NEXT

4.

PROBLEM SYMPTOM CONFIRMATION

NEXT

5.

CHECK CAN COMMUNICATION SYSTEM

(a) Check for output DTCs.

HINT:

The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, be sure to check that there is no trouble in the CAN communication system.

Result

Proceed to

CAN communication system DTC not output

A

CAN communication system DTC output

B

B

CAN COMMUNICATION SYSTEM

A

6.

CHECK CLEAR DTCS

NEXT

7.

PROBLEM SYMPTOM SIMULATION

Result

Proceed to

Symptom does not occur

A

Symptom occurs

B

B

GO TO STEP 9

A

8.

SYMPTOM SIMULATION

NEXT

9.

CHECK DTCS (OTHER THAN CAN SYSTEM DTCS)

Result

Proceed to

DTC not output

A

DTC output

B

B

GO TO STEP 11

A

10.

PROBLEM SYMPTOMS TABLE

NEXT

GO TO STEP 12

11.

DTC CHART

NEXT

12.

CIRCUIT INSPECTION

NEXT

13.

PROBLEM IDENTIFICATION

NEXT

14.

REPAIR OR REPLACE

NEXT

15.

CONFIRMATION TEST

NEXT

END

Precaution
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System Description
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Other materials:

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Air Conditioning System DTC Code Detection Item Memory See page B1411/11 Room Temperature Sensor Circuit Memorized (4 seconds or more) B1412/12 ...

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: 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 probability in the "Suspected Area" column of the table. Check each symptom by check ...

TC and CG Terminal Circuit
DESCRIPTION DTC output mode is set by connecting terminals TC and CG of the DLC3. The DTCs are displayed by blinking the SRS warning light. HINT: Make sure that DTCs which relate to the CAN communication system are not output. If any of these DTCs are output, check the CAN communicat ...

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