Toyota Sienna Service Manual: TC and CG Terminal Circuit
DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the system to enter the self-diagnostic mode. If a malfunction is present, DTCs will be output.
HINT: When a particular warning light remains blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in the relevant ECU is suspected.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - ECM)
- Disconnect the E4 connector from the ECM.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
2 CHECK HARNESS AND CONNECTOR (TERMINAL CG of DLC3 - BODY GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 CHECK HARNESS AND CONNECTOR (TERMINAL TC of DLC3 - BODY GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Cruise Main Indicator Light Circuit
DESCRIPTION
When the cruise control main switch is on, the CRUISE main indicator light
and READY indicator light
come on. This indicates the control condition (presence or absence of a vehicle
i ...
Cruise control main switch
COMPONENTS
Removal
1. DISCONNECT BATTERY NEGATIVE TERMINAL
2. REMOVE STEERING WHEEL COVER LOWER NO.2
(24)
3. REMOVE STEERING WHEEL COVER LOWER NO.3
(24)
4. REMOVE HORN BUTTON ASSEMBLY
...
Other materials:
Removal
1. REMOVE FRONT DOOR LOWER FRAME BRACKET GARNISH LH
2. REMOVE FRONT DOOR INSIDE HANDLE BEZEL PLUG LH
3. REMOVE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
4. REMOVE FRONT DOOR TRIM BOARD SUBASSEMBLY LH
5. REMOVE SEAT MEMORY SWITCH
Disengage the 4 claws and remove the seat
memor ...
Park / Neutral Position Switch Circuit
DESCRIPTION
The fold seat control ECU receives signals from the Park/Neutral position
switch and controls the seat
stowing and return operations. If the shift lever is in any position other than
P the seat cannot be operated.
If the ignition switch is in ACC or IG the seat cannot be operate ...
Initialization
Items to initialize
The following items must be initialized for normal system operation
after such cases as the battery being reconnected, or maintenance
being performed on the vehicle.
Item
When to initialize
Power sliding door
(if equipped)
After reconnecting o ...
