Toyota Sienna Service Manual: Reverse Signal Circuit
DESCRIPTION
The radio and navigation assembly receives a reverse signal from the park/neutral position switch and information about the GPS antenna, and then adjusts vehicle position.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT RADIO AND NAVIGATION ASSEMBLY
- Disconnect the radio and navigation assembly connector R12.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
2 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION - PARK / NEUTRAL POSITION SWITCH)
- Disconnect the radio and navigation assembly connector R12 and park/neutral position switch connector P1.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 INSPECT PARK / NEUTRAL POSITION SWITCH
- Disconnect the park/neutral position switch connector P1.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
REPAIR OR REPLACE HARNESS OR CONNECTOR
AVC-LAN Circuit
DESCRIPTION
Each unit of the navigation system connected to the AVC-LAN (communication
bus) transfers the signal of
each switch by communication.
When a short to +B or short to ground occurs in ...
Navigation Voice Circuit
DESCRIPTION
This circuit is used when the voice guidance in the navigation system is on.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - STER ...
Other materials:
Towing related terms
GCWR (Gross Combination Weight Rating)
The maximum allowable gross
combination weight. The gross
combination weight is the sum
of the total vehicle weight
(including the occupants, cargo
and any optional equipment
installed on the vehicle) and the
weight of the trailer being towed
(incl ...
Removal
1. DRAIN AUTOMATIC TRANSAXLE FLUID (See page
AX-131)
2. REMOVE NO. 1 TRANSFER CASE PLUG (See page
TF-8)
3. REMOVE TRANSFER DRAIN PLUG
(a) Remove the transfer drain plug, gasket and bleed
the drain transfer oil.
4. REMOVE FRONT WHEEL
5. REMOVE FRONT DRIVE SHAFT ASSEMBLY RH
HINT:
(See page D ...
Tire Pressure Warning Light Circuit
DESCRIPTION
If the ECU detects trouble, the tire pressure warning light blinks (comes on
after blinking for 1 minute) and
tire pressure monitor is cancelled at the same time. At this time, the ECU
records a DTC in the memory.
Connect terminals TC and CG of DLC3 to make the tire pressure war ...
