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

WARNING: This page is about a different car, the 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

Proceed to

NEXT

Result: 1

NEXT

See step 2

INSPECT BATTERY VOLTAGE

Measure the battery.

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

Proceed to
NEXT

Result: 1

See step 3

INSPECT MILLIMETER WAVE RADAR SENSOR ASSEMBLY (BEAM AXIS MISALIGNMENT READING)*

Adjust the reflector height.
Refer to ADJUSTMENT [12/2013 - 11/2016]
Place the reflector.
Refer to ADJUSTMENT [12/2013 - 11/2016]
Connect the Techstream to the DLC3.
Turn the Techstream on.
Turn the cruise control switch (ON/OFF button) on.
Enter the following menus: Powertrain / Radar Cruise / Utility / Beam Axis Misalignment Reading.

Check the amount of misalignment and make a note.

Powertrain > Radar Cruise > Utility

Tester Display
Beam Axis Misalignment Reading

Result

Proceed to
NEXT

Result: 1

See step 4

CHECK CAN COMMUNICATION SYSTEM*

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

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

Result

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

See step 5

CHECK FOR DTCs (RADAR CRUISE)*

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

Powertrain > Radar Cruise > Trouble Codes
Clear the DTCs.
Refer to DTC CHECK / CLEAR [12/2013 - 11/2016]

Powertrain > Radar Cruise > 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]

Powertrain > Radar Cruise > Trouble Codes

Result

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

Result: 2

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

Result: 1

See step 6

PROBLEM SYMPTOMS TABLE

HINT:

Refer to Problem Symptoms Table.

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

Result

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

Result: 2

See step 8

Result: 1

See step 7

OVERALL ANALYSIS AND TROUBLESHOOTING*

Terminals of ECU
Refer to TERMINALS OF ECU [12/2013 - 11/2016]

Data List / Active Test

Refer to DATA LIST / ACTIVE TEST [12/2013 - 11/2016]

Result

Proceed to
NEXT

Result: 1

See step 8

ADJUST, REPAIR OR REPLACE
NOTE:
When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.

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

Result

Proceed to

NEXT

Result: 1

NEXT

See step 9
CONFIRMATION TEST
Result

Proceed to

NEXT

Result: 1

NEXT

END