How To Proceed With Troubleshooting [12/2013 - 11/2016]: Procedure

WARNING: This page is about a different car, the 2017 Toyota Highlander, 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

VEHICLE BROUGHT TO WORKSHOP
Result: 1

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INSPECT BATTERY VOLTAGE
1. 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.
Result: 1

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CHECK CAN COMMUNICATION SYSTEM*

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

Refer to DIAGNOSIS SYSTEM [12/2013 - 11/2016] .

Result	Proceed to
CAN communication system DTCs are not output	A
CAN communication system DTCs are output	B

Result: 2

GO TO CAN COMMUNICATION SYSTEM.

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - 11/2016] .

Result: 1

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CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)*

Check for DTCs and note any codes that are output.
Refer to DTC CHECK / CLEAR [12/2013 - 11/2016] .

Chassis > Lane Departure Alert > Trouble Codes
Clear the DTCs.
Refer to DTC CHECK / CLEAR [12/2013 - 11/2016] .

Chassis > Lane Departure Alert > Clear DTCs

Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs.

Refer to DTC CHECK / CLEAR [12/2013 - 11/2016] .

Chassis > Lane Departure Alert > Trouble Codes

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

Result: 2

GO TO DIAGNOSTIC TROUBLE CODE CHART.

Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2013 - 11/2016] .

Result: 1

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PROBLEM SYMPTOMS TABLE

HINT:

Refer to Problem Symptoms Table.

Refer to PROBLEM SYMPTOMS TABLE [12/2013 - 11/2016] .

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

Result: 2

See step 7

Result: 1

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OVERALL ANALYSIS AND TROUBLESHOOTING*
1. Terminals of ECU
  Refer to TERMINALS OF ECU [12/2013 - 11/2016] .
2. Data List / Active Test
  Refer to DATA LIST / ACTIVE TEST [12/2013 - 11/2016] .
Result: 1

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ADJUST, REPAIR OR REPLACE
NOTE:
When the lane departure warning camera is replaced with a new one, adjustment of the lane departure warning camera axis must be performed.

Refer to ADJUSTMENT [12/2013 - 11/2016] .

Result: 1

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CONFIRMATION TEST
Result: 1

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END