Toyota Venza: Engine Hood Courtesy Switch Circuit
DESCRIPTION
The security courtesy switch is installed together with the hood lock. This switch turns off when the engine hood is opened and turns on when the engine hood is closed.
WIRING DIAGRAM
PROCEDURE
|
1. |
INSPECT HOOD LOCK ASSEMBLY (SECURITY COURTESY SWITCH) |
|
(a) Remove the hood lock assembly (See page
|
|
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(b) Disconnect the A7 security courtesy switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - 2 |
Opened |
Below 1 Ω |
|
Locked |
10 kΩ or higher |
|
*1 |
Component without harness connected (Hood Lock Assembly (Security Courtesy Switch)) |
|
*2 |
Opened |
|
*3 |
Locked |
| NG | .gif) |
REPLACE HOOD LOCK ASSEMBLY (SECURITY COURTESY SWITCH) |
|
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|
2. |
CHECK HARNESS AND CONNECTOR (SECURITY COURTESY SWITCH - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - SECURITY COURTESY SWITCH) |
|
(a) Disconnect the D50 main body ECU (driver side junction block assembly) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D50-16 (HCTY) - A7-1 |
Always |
Below 1 Ω |
|
D50-16 (HCTY) - Body ground |
Always |
10 kΩ or higher |
|
*1 |
Front view of wire harness connector (to Main Body ECU (Driver Side Junction Block Assembly)) |
|
*2 |
Front view of wire harness connector (to Security Courtesy Switch) |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
The ECU stores trouble codes when trouble occurs on the vehicle.
The diagnostic system allows for reading of the trouble codes from the DLC3.
Use the Techstream to ...
Horn Circuit
DESCRIPTION
When the theft deterrent system is switched from the armed state to the alarm
sounding state, the main body ECU (driver side junction block assembly) transmits
a signal to cause the h ...
Other materials about Toyota Venza:
Initialization
INITIALIZATION
1. RESET TRANSAXLE COMPENSATION CODE
NOTICE:
If the following parts have been replaced, initialize the TCM and perform
the following "Reset Memory" and "Perform Road Test to Allow TCM to learn"
steps.
- ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is stored during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to the "See page" below.
Certification ECU (Smart Key ECU Assembly)
...
Follow the correction procedures. (smart key system)
After taking the specified steps to correct the suspected problem, check that
the warning light turns off.
- If the malfunction indicator lamp comes on while driving
First check the following:
• Is the fuel empty?
If it is, fill the fuel tan ...
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