Toyota Sienna Service Manual: Diagnostic trouble code chart
If a DTC is displayed during the DTC check, check the parts listed in the table below and proceed to the page given.
HINT:
- *1: Comes on MIL (Malfunction Indicator Lamp) light up
- *2: "DTC stored" mark means ECM memorizes the malfunction code if the ECM detects the DTC detection condition.
- This DTC may be output when the clutch, brake and gear components etc. inside the automatic transmission are damaged.
- Transmission Range Sensor Circuit Malfunction (PRNDL Input)
- Transmission Fluid Temperature Sensor "A"
- Transmission Fluid Temperature Sensor "A" Performance
- Turbine Speed Sensor Circuit No Signal
- Brake Switch "B" Circuit High
- Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve DSL)
- Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1)
- Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1)
- Shift Solenoid "D" Performance (Shift Solenoid Valve S4)
- Shift Solenoid "E" Performance (Shift Solenoid Valve SR)
- Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2)
- Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2)
- Intermediate Shaft Speed Sensor "A"
- Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3)
- Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3)
- Shift Solenoid "D" Control Circuit
- Shift Solenoid "E" Control Circuit
- Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)
- Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
- Torque Converter Clutch Solenoid Circuit
Data list / active test
1. 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-i ...
Transmission Range Sensor Circuit Malfunction
(PRNDL Input)
DESCRIPTION
The park/neutral position switch detects the shift lever position and sends
signals to the ECM.
MONITOR DESCRIPTION
These DTCs indicate a problem with the park/neutral position ...
Other materials:
ECU Power Source Circuit
DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
When replacing the tire pressure warning ECU, read the transmitter IDs
stored in the old ECU
using the intelligent tester and write them down before removal.
It is neces ...
Inspection
1. INSPECT CRANKSHAFT POSITION SENSOR
Using an ohmmeter, measure the resistance
between the terminals.
Standard resistance
NOTICE:
"Cold" and "Hot" mean the temperature of the
coils themselves.
"Cold" is from -10C (14F) to 50C (122F ...
Front Occupant Classification Sensor LH Collision
Detection
DTC B1785 Front Occupant Classification Sensor LH Collision
Detection
DESCRIPTION
DTC B1785 is output when the occupant classification ECU receives a collision
detection signal sent by
the front occupant classification sensor LH if an accident occurs.
DTC B1785 is also output when the front ...
