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:
Short in Side Squib RH Circuit
DTC B0110/43 Short in Side Squib RH Circuit
DESCRIPTION
The side squib RH circuit consists of the center airbag sensor assembly and
the front seat side airbag
assembly RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0110/43 is recorded when a short cir ...
Diagnostic trouble code chart
HINT:
If a trouble code is displayed during the DTC check,
inspect the circuit listed for that code. For details of the
code, refer to the "See page" in the DTC chart.
Inspect the fuse and relay before investigating the
suspected areas shown in the table below.
W ...
Disassembly
1. Remove rear wheel
2. Drain brake fluid
Notice:
wash the brake fluid off immediately if it attaches to
any painted surface.
3. REMOVE REAR BRAKE DRUM SUB-ASSEMBLY
(a) Release the parking brake lever, and remove the
rear brake drum.
HINT:
If the rear brake drum cannot be removed easily,
p ...
