Toyota Sienna Service Manual: Ignition system
Parts location
System diagram
Engine
...
Ignition coil and spark plug
Components
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Other materials:
Data list / active test
1. READ DATA LIST
HINT:
Using the intelligent tester to read the Data List allows
the values or states of switches, sensors, actuators and
other items to be read without removing any parts. This
non-intrusive inspection can be very useful because
intermittent conditions or signals may be disco ...
Transmission Range Sensor Circuit Malfunction
(PRNDL Input)
DTC P0705 Transmission Range Sensor Circuit Malfunction
(PRNDL Input)
DESCRIPTION
The park/neutral position switch detects the shift lever position and sends
signals to the ECM.
HINT:
After confirming DTC P0705, use the intelligent tester to confirm the PNP switch
signal in the ALL menu ...
ECM Power Source Circuit
DESCRIPTION
When the ignition switch is turned to the ON position, the battery voltage is
applied to terminal IGSW of
the ECM. The ECM MREL output signal causes a current to flow to the coil,
closing the contacts of the EFI
relay and supplying power to terminal +B of the ECM.
If the igniti ...
