Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT:
- Use the following procedures to troubleshoot the dynamic laser cruise control system.
- *: Use the intelligent tester
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
3 PROBLEM SYMPTOM CONFIRMATION
Result
SYMPTOM SIMULATION
4 INSPECT BATTERY VOLTAGE
Standard voltage: 11 to 14 V
If the voltage is below 11 V, replace or recharge the battery before proceeding.
5 CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)
- Use the intelligent tester to check if the multiplex communication system (MPX) is functioning normally.
Result
6 CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN)
- Use the intelligent tester to check for normal function of the CAN communication system.
- Check for DTCs.
Result
7 DTC CHECK
Result
8 DTC CHART
9 PROBLEM SYMPTOMS TABLE
10 CIRCUIT INSPECTION
11 TERMINALS OF ECM
12 IDENTIFICATION OF PROBLEM
13 REPAIR OR REPLACE
14 CONFIRMATION TEST
END
System description
1. GENERAL
The dynamic laser cruise control system has two
cruise control modes: the constant speed control
mode and vehicle-to-vehicle distance control mode.
The vehicle-to- ...
Road test
1. PROBLEM SYMPTOM CONFIRMATION
HINT:
The dynamic laser cruise control system has two cruise
control modes: the constant speed control mode and
vehicle-to-vehicle distance control mode.
...
Other materials:
Installation
HINT:
Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
1. INSTALL FRONT AIRBAG SENSOR LH
Check that the ignition switch is off.
Check that the battery negative (-) terminal is
disconnected.
CAUTION: ...
Washer Signal Circuit
DESCRIPTION
The distance control ECU detects washer operation. The cruise control will be
cancelled by the distance
control ECU if the windshield wipers operate in the HI or LO mode. By detecting
washer operation, the
distance control ECU allows the cruise control to continue even when the
...
DTC check / clear
1. CHECK DTC
Connect the intelligent tester to the Controller Area
Network Vehicle Interface Module (CAN VIM). Then
connect the CAN VIM to the DLC3.
Turn the ignition switch on.
Turn the tester ON.
Enter the following menu items: DIAGNOSIS / OBD/
MOBD / IM ...
