Toyota Sienna Service Manual: Terminals of ECU
1. CLEARANCE WARNING ECU
*1: with Front Clearance Sonar
2. AIR CONDITIONER AMPLIFIER ASSEMBLY
*1: with Front Clearance Sonar
*2: Manual A/C
*3: Auto A/C
- Reference: waveform 1
HINT:
- Terminal: CBZ - E, BBZ - E, Z- - Body ground
- Gauge set: 2 V/DIV., 500 μs/DIV.
- Condition: When the clearance sonar is detecting an object.
- Reference: waveform 2
HINT:
- Terminal: S5 - E, S6 - E
- Gauge set: 2 V/DIV., 100 μs/DIV.
- Condition: When the back sonar is not detecting an object
- Reference: waveform 3
HINT:
- Terminal: S3 - E, S1 - E, S4 - E, S2 - E
- Gauge set: 2 V/DIV., 100 μs/DIV.
- Condition: When the clearance sonar is not detecting an object.
Problem symptoms table
HINT:
Before performing verification listed in the table below,
check the fuse and relay.
Check the circuits for each problem symptom in the order
given in the table below, and p ...
Adjustment
1. ADJUST BUZZER VOLUME
Turn the knob on the clearance warning ECU to
adjust the volume.
...
Other materials:
Heated steering
wheel/seat heaters
Heated steering wheel and seat heaters heat the side grips of the
steering wheel and seats, respectively.
WARNING
Care should be taken to prevent injury if anyone in the
following categories
comes in contact with the steering wheel and seats when the heater
is on:
...
Installation
1. INSTALL AIR CONDITIONING BLOWER ASSEMBLY
(a) Install the air conditioning blower assembly with the
3 bolts.
Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf)
NOTICE:
Tighten the bolts in the order shown in the
illustration to install the air conditioning blower
assembly.
2. INSTALL AIR CONDITIO ...
Half Connection in Center Airbag Sensor
Assembly Connectors
DTC B1135/24 Half Connection in Center Airbag Sensor
Assembly Connectors
DESCRIPTION
The center airbag sensor assembly connector has a mechanism that electrically
detects half connection.
The center airbag sensor assembly monitors the voltage applied to the
disconnection detection pins and ...
