Toyota Sienna Service Manual: Precaution
1. HANDLING PRECAUTION FOR CRUISE CONTROL SYSTEM
- Turn the cruise control main switch off when not using the cruise control system.
- Be careful as the vehicle speed increases when driving downhill with the cruise control system on.
- The + (ACCEL)/RES (RESUME) operation changes according to the cruise control system status. When the cruise control system is operating, the + (ACCEL) function operates. When the cruise control system is not operating, the RES (RESUME) function operates.
- If the CRUISE main indicator light blinks while the cruise control system is operating, turn the cruise control main switch off to reset the cruise control system. After the reset, if the cruise control main switch cannot be turned on, or the cruise control system is canceled immediately after turning the cruise control main switch on, the system may have a malfunction.
- Do not use the cruise control system where the road conditions are as follows:
- Heavy traffic
- Steep decline
- Roads with sharp turns
- Icy or snowy roads
- Slippery roads
PARTS LOCATION
SYSTEM DIAGRAM
Communication Table:
System description
1. CRUISE CONTROL SYSTEM
This system is controlled by the ECM, and is activated by
the throttle position sensor and motor. The ECM controls
the following functions: ON-OFF, - (COAST)/SET, +
(ACCEL ...
Other materials:
Release Actuator Circuit
DESCRIPTION
The fold seat control ECU receives a switch operation signal from the fold
seat switch and activates the
release actuator. The release actuator releases the lock of the stowed seat
based on a drive voltage
received from the ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT ...
DSP Error
DTC 44-78 DSP Error
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
44-78
An error occurs during the decode process (MP3/
WMA).
-
INSPECTION PROCEDURE
HINT:
After the inspection is completed, clear the DTCs.
NOTICE:
Thi ...
Check for open circuit
(a) For an open circuit in the wire harness in Fig. 1, the resistance or
voltage, as described below.
(b) Check the resistance.
Check the resistance
Standard resistance (Fig. 2)
HINT:
Measure the resistance while lightly shaking the
wire harness vertically and horizontally. I ...
