Toyota Sienna Service Manual: Transmission Error

DTC 01-DC Transmission Error

DESCRIPTION

HINT: *1: This code may be stored if the engine is started, idled for 60 seconds and then the ignition switch is turned to the START position again.

NOTICE:

•  Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.
•  The radio and navigation assembly is the master unit.
•  Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

INSPECTION PROCEDURE

NOTICE: Be sure to read DESCRIPTION before performing the following procedures

1 CHECK FOR DTC OF OTHER COMPONENTS

1. Check if the component shown by the sub-code is displayed in the check result of the other components.

1.  Check if "01-DC" is output for the other components.
2.  If "01-DC" is output for any other components, check if the same physical address is displayed.

HINT: For the list of the components shown by sub-codes, refer to the table in step 2.

Result

2 IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE

1. Enter the diagnostic mode.
2.  Press the "LAN Mon" switch to change to "LAN Monitor" mode.
3.  Identify the component which has stored this code.

Component Table:

HINT: "NAVI" is the component which has stored this code in the example shown in the illustration.

3 CHECK COMPONENT WHICH HAS STORED THIS CODE

1. Select the component which has stored this code.

Component Table:

END

4 CLEAR DTC

1. Clear the DTCs.

HINT: If "01-DC" is output for only one component, this may not indicate a malfunction.

5 RECHECK DTC

1. Recheck for DTCs and check if the same trouble occurs again.

OK: Malfunction disappears

END