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:
Master Reset/ Voice Processing Device ON Error
DTC 01-DD Master Reset
DTC 01-E1 Voice Processing Device ON Error
DESCRIPTION
HINT:
*1: This code may be stored if the engine is started and the ignition switch is
turned to START position
again.
*2: Even if no fault is present, this trouble code may be stored depending on
the battery ...
Error in Picture Circuit/ No Current in Back-light/ Excess Current in
Back-light
DTC 34-10 Error in Picture Circuit
DTC 34-11 No Current in Back-light
DTC 34-12 Excess Current in Back-light
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
34-10
Error in power supply system for picture circuit
Radio and navigation assembly
...
Fuel Pump Primary Circuit
DTC P0230 Fuel Pump Primary Circuit
DESCRIPTION
This DTC is designed to detect a malfunction in the fuel pump
(FUEL PUMP) relay circuit. When the
system is normal, the battery voltage is applied to FPR terminal of the ECM
while the FUEL PUMP
relay is turned OFF. If the battery v ...
