Toyota Tundra Service Manual: How To Proceed With Troubleshooting

Toyota Tundra Service Manual / Engine, Hybrid System / Cruise Control / Lane Departure Alert System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use these procedures to troubleshoot the lane departure alert system.
*: Use the Techstream.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard voltage:

11 to 14 V

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

3.	CHECK CAN COMMUNICATION SYSTEM*

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

Click here

OK:

CAN communication system is functioning normally.

GO TO CAN COMMUNICATION SYSTEM

4.	CHECK FOR DTCs

(a) Check for DTCs and note any codes that are output.

Click here

(b) Clear the DTCs.

Click here

Result	Proceed to
DTCs are not output	A
DTCs are output	B

GO TO DTC CHART

5.	PROBLEM SYMPTOMS TABLE

HINT:

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

GO TO STEP 8

6.	OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU

Click here

(b) Data List / Active Test

Click here

7.	ADJUST, REPAIR OR REPLACE

NOTICE:

When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.
Click here
When the forward recognition camera is replaced with a new one, adjustment of the forward recognition camera optical axis must be performed.
Click here

8.	CONFIRMATION TEST

END

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