Hint:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Customize parameters
Terminals of ecuCruise control
Summary of functions
Use the cruise control to maintain a set speed without depressing the
accelerator pedal.
Indicators
Cruise control switch
Setting the vehicle speed
Press the “on-off” button to
activate the cruise control.
Cruise control indicator will come
on.
...
Trailer Tongue Weight
A recommended tongue
weight varies in accordance
with the types of trailers or
towing as described below.
To ensure the recommended
values shown below, the
trailer must be loaded by
referring to the following
instructions.
Tongue Weight
The gross trailer weight should be
distribut ...
Terminals of ecu
Check sliding roof drive gear subassembly (sliding roof ecu)
Disconnect the p6 ecu connector.
Measure the resistance and voltage of the wire
harness side connector.
Reconnect the p6 ecu connector.
Measure the voltage of the connector.
If the result is not as speci ...