Toyota Sienna Service Manual: Diagnosis system
1. CHECK DLC3
- The vehicle's ECU uses ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format
NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors.
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
- Connect the cable of the intelligent tester to the DLC3, turn the ignition switch to the ON position and attempt to use the intelligent tester. If the screen displays a communication error message, a problem exists in the vehicle side of the tester side.
HINT:
- If communication is normal when the tool is connected to another vehicle, inspect the DLC3 on the original vehicle.
- If communication is still impossible when the tool is connected to another vehicle, the problem is probably in the tool itself. Consult the Service Department listed in the tool's instruction manual.
Terminals of ECU
1. CHECK POWER SLIDE DOOR ECU LH
Disconnect the P25 and P26 ECU connectors, and
check the voltage and resistance of each terminal of
the wire harness side connectors
If the result i ...
DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER)
Checking DTCs.
Connect the intelligent tester to the DLC3.
Turn the ignition switch ON.
Read DTCs by following the prompts o ...
Other materials:
Perform zero point calibration of yaw rate and deceleration sensor (when
using intelligent tester)
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Operate the intelligent tester to erase the codes
(select "RESET MEMORY").
HINT:
Refer to the intelligent tester operator's manual for
further details.
(d) Using the intell ...
Installation
1. INSTALL FRONT DRIVE SHAFT ASSEMBLY LH
(a) Coat the spline of the inboard joint shaft assembly
with ATF.
(b) Align the shaft splines and install the drive shaft
assembly with a brass bar and hammer.
NOTICE:
Set the snap ring with the opening side facing
down.
Be careful not to d ...
Installation
1. REMOVE FRONT SEAT INNER BELT ASSEMBLY
HINT:
Refer to the instructions for reassembly of the front seat assembly
(for flat type).
Refer to the instructions for reassembly of the front seat assembly
(for manual seat).
Refer to the instructions for reassembly of the ...
