Toyota Sienna Service Manual: Headlight dimmer relay
ON-VEHICLE INSPECTION
1. HEADLIGHT DAY DIM LIGHT RELAY
- Inspect relay resistance.
Resistance
Daytime running light relay
ON-VEHICLE INSPECTION
1. RUNNING LIGHT RELAY
Inspect relay resistance.
Resistance
...
Taillight relay
ON-VEHICLE INSPECTION
1. TAIL LIGHT RELAY
Inspect relay resistance.
Resistance
...
Other materials:
Actuator Supply Voltage Circuit / Open
DTC P0657 Actuator Supply Voltage Circuit / Open
DESCRIPTION
The ECM monitors the output voltage to the throttle actuator. This self-check
ensures that the ECM is
functioning properly. The output voltage is usually 0 V when the ignition switch
is turned off. If the output
voltage is higher t ...
Cellular Phone Registration Failure, Phone Directory Transfer Failure
INSPECTION PROCEDURE
1 CHECK CURRENT CONDITIONS
Proceed to the next step according to the table below.
RESULT
2 CHECK USING ANOTHER CELLULAR PHONE
Check if the system functions using another Bluetooth
compatible cellular phone.
HINT:
Confirm that either the same or a di ...
Folding Motor Circuit
DESCRIPTION
The fold seat control ECU receives a switch operation signal from the fold
seat switch and activates the
folding motor. At this time, the Hall IC (seat cushion position sensor) detects
the actuation signal. The fold
seat control ECU uses signals from the Hall IC (seat cushion posi ...