Toyota Sienna Service Manual: Communication Error from Distance Control ECU to ECM
DTC P1615 Communication Error from Distance Control ECU to ECM
DTC U1101 Lost Communication with Distance Control ECU
DESCRIPTION
The distance control ECU receives information about the area in front of the vehicle from the laser sensor and then sends a brake control demand signal (deceleration demand) and diagnosis signals, such as laser sensor grime signals or laser sensor malfunction signals, to the ECM.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
P1615 |
While the dynamic laser cruise control is either preparing for operation or operating, if communication data from the distance control ECU is logically inconsistent for a certain amount of time, the ECM records this logical error code |
|
|
U1101 |
While the dynamic laser cruise control is either preparing for operation or operating, if communication data from the distance control ECU is invalid for a certain amount of time, the ECM records this communication cut off code |
|
INSPECTION PROCEDURE
HINT: This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
1 CHECK CAN COMMUNICATION SYSTEM
Refer to HOW TO PROCEED WITH TROUBLESHOOTING
END
Brake System Malfunction
DTC P1578 Brake System Malfunction
DESCRIPTION
This DTC is output when the VSC system has a problem. Check the VSC system
when this DTC is
output
DTC No.
DTC Detection Conditio ...
Communication Error from ECM to Distance
Control ECU
DTC P1616 Communication Error from ECM to Distance
Control ECU
DTC U0100 Lost Communication with ECM/PCM "A"
DESCRIPTION
The ECM receives signals from each sensor and ECU, then sends sig ...
Other materials:
Standard bolt
HOW TO DETERMINE BOLT STRENGTH
SPECIFIED TORQUE FOR STANDARD BOLTS
HOW TO DETERMINE NUT STRENGTH
HINT:
*: Nut with 1 or more marks on one side surface of the nut.
Use a nut with the same nut strength classification number
(or greater) as the bolt strength classification number ...
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Oil and oil filter
COMPONENTS
REPLACEMENT
CAUTION:
Prolonged and repeated contact with engine oil will
result in the removal of natural oils from the skin,
leading to dryness, irritation and dermatitis. In
addition, used engine oil contains potentially harmful
contaminants which may caus ...
