Toyota Sienna Service Manual: Terminals of ECU
1. POSITION CONTROL ECU AND SWITCH ASSEMBLY (POWER SEAT CONTROL SWITCH AND ECU)
- Disconnect the P58 and P59 connectors.
- Check the voltage of each terminal of the wire harness side connectors.
If the result is not as specified, there may be a malfunction in the wire harness side.
- Check the resistance of each terminal of the wire harness side connectors.
If the result is not as specified, there may be a malfunction in the wire harness side.
- Reconnect the P58 and P59 connectors.
- Check the voltage of each terminal of the connectors.
If the result is not as specified, the position control ECU and switch assembly may be malfunctioning.
2. OUTER MIRROR CONTROL ECU LH
- Disconnect the outer mirror control ECU LH connector.
- Check the voltage of each terminal of the wire harness side connectors.
If the result is not as specified, there may be a malfunction in the wire harness side.
- Check the resistance of each terminal of the wire harness side connector.
If the result is not as specified, there may be a malfunction in the wire harness side.
- Reconnect the outer mirror control ECU LH connector.
- Check the voltage of each terminal of the connectors.
If the result is not as specified, the outer mirror control ECU LH may be malfunctioning.
Problem symptoms table
HINT:
Inspect the fuse and relay before confirming the suspected
areas in the table below.
Inspect each suspected area in numerical order for the
corresponding symptom.
If the ...
Diagnosis system
1. DESCRIPTION
Front power seat control system data can be read
through the Data Link Connector 3 (DLC3) of the
vehicle. When the system seems to be
malfunctioning, use the intelligent ...
Other materials:
Camshaft Position "B" Actuator Circuit
DESCRIPTION
The Variable Valve Timing (VVT) system includes the ECM, OCV and VVT
controller. The ECM sends a
target duty-cycle control signal to the OCV. This control signal regulates the
oil pressure supplied to the
VVT controller. Camshaft timing control is performed according to engine ...
Short to B+ in Front Passenger Side Squib 2nd
Step Circuit
DTC B1188/56 Short to B+ in Front Passenger Side Squib 2nd
Step Circuit
DESCRIPTION
The front passenger side squib 2nd step circuit consists of the center airbag
sensor assembly and the
front passenger airbag assembly.
The circuit instructs the SRS to deploy when deployment conditions are m ...
Operating the audio system
Press this button to eject a disc
Insert a disc into the disc slot
Press to pause or resume playing music.
Press the “<” or “>” button to seek up or down for a radio station, or
to access a desired track or file.
Turn this knob to select radio station bands, tracks and ...
