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

Toyota Tacoma (2015-2018) Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System(for Hydraulic Brake Booster) / 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

2.	CUSTOMER PROBLEM ANALYSIS

3.	CHECK AND CLEAR DTCS AND FREEZE FRAME DATA

4.	PROBLEM SYMPTOM CONFIRMATION

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

CAN COMMUNICATION SYSTEM

6.	CHECK CLEAR DTCS

7.	PROBLEM SYMPTOM SIMULATION

Result	Proceed to
Symptom does not occur	A
Symptom occurs	B

GO TO STEP 9

8.	SYMPTOM SIMULATION

9.	CHECK DTCS (OTHER THAN CAN SYSTEM DTCS)

Result	Proceed to
DTC not output	A
DTC output	B

GO TO STEP 11

10.	PROBLEM SYMPTOMS TABLE

GO TO STEP 12

11.

DTC CHART

12.	CIRCUIT INSPECTION

13.	PROBLEM IDENTIFICATION

14.	REPAIR OR REPLACE

15.	CONFIRMATION TEST

END

Precaution

PRECAUTION 1. IGNITION SWITCH EXPRESSION (a) The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are us ...

System Description

SYSTEM DESCRIPTION 1. SYSTEM DESCRIPTION HINT: The skid control ECU is built into the hydraulic brake booster. (a) ABS (Anti-lock Brake System) The ABS helps prevent the wheels from locking when ...

Other materials:

Acceleration Sensor Internal Circuit (C1419,C1435)
DESCRIPTION The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system. The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition. If t ...

USB Device Malfunction (B1585)
DESCRIPTION This DTC is stored when a malfunction occurs in a connected device. DTC No. DTC Detection Condition Trouble Area B1585 USB Device Malfunction Non mass-storage class or incompatible protocol USB device ...

Test Mode Procedure
TEST MODE PROCEDURE 1. WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK (a) When the ignition switch is turned ON, check that the ABS warning, brake warning, and slip indicator lights come on for approximately 3 seconds. HINT: When the brake fluid level is low, the brake warning light c ...