Millimeter Wave Radar Sensor Power Source Circuit [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.
- CHECK MILLIMETER WAVE RADAR SENSOR ASSEMBLY (IGB VOLTAGE)
- Disconnect the A3 millimeter wave radar sensor assembly connector.
*a Front view of wire harness connector
(to Millimeter Wave Radar Sensor Assembly) - Turn the engine switch on (IG).
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition A3-5 (IGB) - Body ground Engine switch on (IG) 11 to 14 V - Turn the engine switch off.
- Reconnect the A3 millimeter wave radar sensor assembly connector.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Clear the DTCs.
Refer to DTC CHECK / CLEAR [12/2013 - 11/2016]
Result
Proceed to OK NG
Result: 2
NG
REPAIR OR REPLACE POWER SOURCE CIRCUIT
Result: 1
OK
See step 2
- Disconnect the A3 millimeter wave radar sensor assembly connector.
- CHECK HARNESS AND CONNECTOR (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - BODY GROUND)
- Disconnect the A3 millimeter wave radar sensor assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open)
Tester Connection Condition Specified Condition A3-1 (SGND) - Body ground Always Below 1 Ω - Reconnect the A3 millimeter wave radar sensor assembly connector.
Result
Proceed to OK NG
Result: 1
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [12/2013 - 11/2016]
Result: 2
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (MILLIMETER WAVE RADAR SENSOR ASSEMBLY - BODY GROUND)