Toyota Sienna Service Manual: Terminals of ECU
1. TELEVISION CAMERA ASSEMBLY
- Disconnect the T10 camera connector
- Measure the voltage and resistance of each terminal of the wire harness side connector.
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the T10 camera connector.
- Measure the voltage and frequency of each terminal of the connector.
If the result is not as specified, the camera may have a malfunction.
- Reference: Oscilloscope waveform
- Waveform 1
2. RADIO AND NAVIGATION ASSEMBLY
- Reverse Signal Circuit
- Display Signal Circuit between Radio and Navigation Assembly and Television Camera Assembly
Problem symptoms table
Before inspecting the suspected areas listed in the table
below, check the fuse and relay.
Before inspecting the suspected areas listed in the table
below, check the DTCs.
Metho ...
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
...
Other materials:
Differential
SST
RECOMMENDED TOOLS
EQUIPMENT
LUBRICANT
SSM
...
MIL Circuit
DESCRIPTION
The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunctions
detected by the ECM.
When the ignition switch is turned to the ON position, power is supplied to the
MIL circuit, and the ECM
provides the circuit ground which illuminates the MIL.
The MIL operation ...
On-vehicle inspection
1. INSPECT COOLING FAN SYSTEM
(a) Put the vehicle in the following conditions
(1) The engine switch is off.
(2) The coolant temperature is less than 95°C
(203°F).
(3) The battery voltage is between 9 and 14 V.
(4) The A/C switch is OFF.
(b) Clamp the 400 A probe of an ammeter over the ...
