Toyota Sienna Service Manual: Cruise Main Indicator Light Circuit
DESCRIPTION
- The ECM detects a cruise control switch signal and sends it to the combination meter through CAN and BEAN. Then the CRUISE main indicator light comes on.
- The CRUISE main indicator light circuit uses CAN and BEAN for communication. If there is a malfunction in this circuit, check for DTCs in the CAN communication system and multiplex communication system before troubleshooting this circuit.
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
- Check the CRUISE main indicator light by performing the ACTIVE TEST.
METER:
OK: The indicator light blinks/goes off.
2 READ VALUE OF INTELLIGENT TE
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
- Check the DATA LIST for proper functioning of the CRUISE main indicator light.
ECM (Cruise control):
OK: When the cruise control main switch is operated, the display changes as shown above.
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Cruise Control Switch Circuit
DESCRIPTION
The cruise control main switch operates 7 functions: SET, - (COAST),
TAP-DOWN, RES (RESUME), +
(ACCEL), TAP-UP, and CANCEL. The SET, TAP-DOWN, and - (COAST) functions, and the
RES
( ...
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 li ...
Other materials:
Installation
1. INSTALL ENGINE COOLANT TEMPERATURE SENSOR
Install the engine coolant temperature sensor.
Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)
Connect the engine coolant temperature sensor
connector.
2. INSTALL AIR CLEANER CASE SUB-ASSEMBLY
3. INSTALL AIR CLEANER CAP SUB-ASSEMBLY
...
Inspection
1. INSPECT VENTILATION VALVE
(a) Install a clean hose to the ventilation valve.
(b) Check the ventilation valve operation.
(1) Blow air into the cylinder head side, and check
that air passes through easily.
NOTICE:
Do not suck air through the valve.
Petroleum substances i ...
Reverse Signal Circuit
DESCRIPTION
The radio and navigation assembly receives a reverse signal from the
park/neutral position switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT RADIO AND NAVIGATION ASSEMBLY
Disconnect the radio and navigation assembly connector
R12.
Measure the voltage accor ...
