Toyota Corolla Cross: Engine Hood Courtesy Switch Circuit
DESCRIPTION
The engine stop and start ECU detects whether the engine hood is open or closed based on a signal received from the engine hood courtesy switch built into the hood lock with courtesy light switch assembly.
The engine stop and start ECU prohibits starting of the engine by stop and start control and changes the mode to "stalled" if the engine hood is opened with the shift lever in D or P while the engine is stopped by stop and start control.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
For wire harness and connector inspection procedures and precautions, refer to
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PROCEDURE
| 1. |
READ VALUE USING GTS (HOOD COURTESY SWITCH) |
NOTICE:
Before performing this step, check that the engine hood can be opened by pulling the hood lock control cable.
(a) According to the display on the GTS, read the Data List.
Powertrain > Stop and Start > Data List|
Tester Display |
|---|
| Hood Courtesy Switch |
OK:
|
GTS Display | Condition |
Normal Condition |
|---|---|---|
|
Hood Courtesy Switch |
Engine hood closed | ON |
|
Engine hood open | OFF |
| OK | .gif) | CHECK AND ADJUST HOOD LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY FITTING (ADJUST HOOD) |
|
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| 2. |
INSPECT ENGINE HOOD COURTESY SWITCH (HOOD LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY) |
Click here
| NG | | REPLACE ENGINE HOOD COURTESY SWITCH (HOOD LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY) |
|
| 3. |
CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH (HOOD LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY) - BODY GROUND) |
(a) Disconnect the A58 engine hood courtesy switch (hood lock with courtesy light switch assembly) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A8-1 (E) - Body ground |
Always | Below 1 Ω |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 4. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ENGINE HOOD COURTESY SWITCH (HOOD LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY)) |
(a) Disconnect the A169 engine stop and start ECU connector.
(b) Disconnect the A8 engine hood courtesy switch (hood lock with courtesy light switch assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A169-7 (BNT1) - A8-2 (+) |
Always | Below 1 Ω |
|
A169-7 (BNT1) - Body ground |
Always | 10 kΩ or higher |
|
A8-2 (+) - Body ground |
Always | 10 kΩ or higher |
| OK | | CHECK AND ADJUST HOOD LOCK WITH COURTESY LIGHT SWITCH ASSEMBLY FITTING (ADJUST HOOD) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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The following inspection procedures for the parking assist monitor system
are based on the assumption that the audio and visual system is normal.
If the audio and visual system has any malfunction, first proceed with troubleshooting
of the audio and vi
