Toyota Sienna Service Manual: Rear Air Conditioning Control Panel Circuit
DESCRIPTION
This is the rear A/C system control signal circuit as well as the power supply circuit of the rear A/C control assembly.
Pulse signals regarding rear A/C control panel switch operation are transmitted between the A/C amplifier and rear A/C control assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (REAR A/C CONTROL ASSEMBLY - BATTERY)
(a) Disconnect the connector from the rear A/C control assembly.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage
2 CHECK HARNESS AND CONNECTOR (REAR A/C CONTROL ASSEMBLY - BODY GROUND)
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance 
3 CHECK HARNESS AND CONNECTOR (REAR A/C CONTROL ASSEMBLY - A/C AMPLIFIER)
(a) Disconnect the connector from the A/C amplifier.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Air Conditioning Compressor Magnetic Clutch Circuit
DESCRIPTION
When the A/C amplifier is turned on, a magnetic clutch ON signal is sent from
the MGC terminal of the A/
C amplifier. Then, the MG CLT relay turns on to operate the magnetic clutch.
W ...
Rear Air Conditioning Relay Circuit
DESCRIPTION
The RR A/C relay is switched on by signals from the A/C amplifier. It
supplies power to the rear blower
motor.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT RELAY (RR A/C)
...
Other materials:
Short to GND in Side Squib LH Circuit
DTC B0117/45 Short to GND in Side Squib LH Circuit
DESCRIPTION
The side squib LH circuit consists of the center airbag sensor assembly and
the front seat side airbag
assembly LH.
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0117/45 is recorded when a s ...
Display
When the sensors detect an obstacle, the following displays inform
the driver of the position and distance to the obstacle.
Multi-information display
Front corner sensor operation
Rear corner sensor operation
Rear center sensor operation
Audio system screen
Intuitive parking ...
Reassembly
1. INSTALL BACK DOOR STOPPER LOWER
Install the 2 stoppers with the 4 bolts.
Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf)
2. INSTALL BACK DOOR BASE STOPPER BRACKET
Install the 2 stopper brackets with the 4 bolts.
Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf)
3. INSTALL BACK DOOR LOCK ASSEMBLY
...
