Toyota Sienna Service Manual: Engine Hood Courtesy Switch Circuit
DESCRIPTION
The engine hood courtesy switch is built in the engine hood lock assembly. The switch turns on when the engine hood is opened and turns off when the engine hood is closed.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT ENGINE HOOD COURTESY SWITCH
- Remove the courtesy switch.
- Disconnect the E3 switch connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
2 CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK BODY ECU - ENGINE HOOD COURTESY SWITCH)
- Disconnect the B8 ECU connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH - BODY GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
REPLACE MULTIPLEX NETWORK BODY ECU
Terminals of ECU
1. CHECK INSTRUMENT PANEL J/B ASSEMBLY
(MULTIPLEX NETWORK BODY ECU)
Disconnect the B6, B7 and B9 ECU connectors.
Disconnect the 1A, 1C, 1L and 1K J/B connectors.
Measure t ...
Security Horn Circuit
DESCRIPTION
During the alarm sounding state, the relay in the ECU turns on and off in a
cycle of approximately 0.2
seconds, causing the security horn to sound.
WIRING DIAGRAM
INSPECTION PROC ...
Other materials:
Installation
1. INSTALL BRAKE VACUUM CHECK VALVE
ASSEMBLY
(a) Install the brake vacuum check valve assembly and
check valve grommet to the brake booster
assembly.
2. INSTALL BRAKE BOOSTER GASKET
(a) Install a new brake booster gasket to the brake
booster with master cylinder.
3. INSTALL BRAKE MASTER CYLI ...
CD Abnormal/ Excess Current/ Tray Insertion / Ejection Error/ CD Abnormal/
Excess Current/ Tray Insertion / Ejection Error
DTC 62-44 CD Abnormal
DTC 62-48 Excess Current
DTC 62-50 Tray Insertion / Ejection Error
DTC 63-44 CD Abnormal
DTC 63-48 Excess Current
DTC 63-50 Tray Insertion / Ejection Error
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
62-44
Operation error ...
Data list / active test
1. DATA LIST
The wireless door lock control data list can be
displayed while the intelligent tester is connected to
the DLC3 with the ignition switch in the ON position.
Follow the prompts on the tester screen to access
the DATA LIST.
BODY:
2. ACTIVE TEST
HINT:
Performing the ACT ...
