Engine Hood Courtesy Switch Circuit [11/2016 - ]: Procedure
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- READ VALUE USING TECHSTREAM (HOOD COURTESY SWITCH) NOTE:
Before performing this step, check that the engine hood can be opened by pulling the hood lock control cable.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Powertrain / Stop and Start / Data List / Hood Courtesy Switch.
Powertrain > Stop and Start > Data List
Tester Display Hood Courtesy Switch - According to the display on the Techstream, read the Data List.
OK
Techstream Display Condition Normal Condition Hood Courtesy Switch Engine hood closed ON Engine hood open OFF Result
Proceed to OK NG
Result: 1
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [11/2016 - ]
Result: 2
NG
See step 2
- INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)
- Inspect the engine hood courtesy switch (hood lock assembly).
Refer to INSPECTION [12/2013 - ]
Result
Proceed to OK NG
Result: 2
NG
REPLACE HOOD LOCK ASSEMBLY. Refer to REMOVAL [11/2016 - ]
Result: 1
OK
See step 3
- Inspect the engine hood courtesy switch (hood lock assembly).
- CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) - BODY GROUND)
- Disconnect the engine hood courtesy switch (hood lock assembly) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A10-2 - Body ground Always Below 1 Ω Result
Proceed to OK NG
Result: 2
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result: 1
OK
See step 4
- CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY))
- Disconnect the engine stop and start ECU connector.
- Disconnect the engine hood courtesy switch (hood lock assembly) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A92-7 (BNT1) - A10-1 Always Below 1 Ω A92-7 (BNT1) or A10-1 - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result: 1
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [11/2016 - ]
Result: 2
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR