Toyota Tacoma (2015-2018) Service Manual: Position Initialization Incomplete (B2343)

Toyota Tacoma (2015-2018) Service Manual / Sliding Roof / Sliding Roof System / Position Initialization Incomplete (B2343)

DESCRIPTION

This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) has not been initialized.

DTC No.	DTC Detection Condition	Trouble Area
B2343	Sliding roof ECU (sliding roof drive gear sub-assembly) has not been initialized.	Sliding roof ECU (Sliding roof drive gear sub-assembly)

WIRING DIAGRAM

Refer to DTC B2341 (See page CAUTION / NOTICE / HINT ).

CAUTION / NOTICE / HINT

NOTICE:

When DTC B2342 and B2343 are output simultaneously, perform troubleshooting for DTC B2342 first.
When the sliding roof ECU (sliding roof drive gear sub-assembly) is removed and reinstalled or replaced, it requires initialization (See page ).
The sliding roof system uses the CAN and LIN communication systems. First, confirm that there are no malfunctions in the CAN and LIN communication systems. Refer to the How to Proceed with Troubleshooting procedure (See page ).

PROCEDURE

1.	INITIALIZE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

(a) Check that the sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized (See page OK: ).

OK:

Sliding roof ECU (sliding roof drive gear sub-assembly) can be initialized.

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

2.	CHECK SLIDING ROOF OPERATION

(a) Check the sliding roof auto operation (See page OK: ).

OK:

Auto operation operates normally.

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

3.	CHECK DTC OUTPUT

(a) Clear the DTCs (See page (b) Check for DTCs. ).

(b) Check for DTCs.

OK:

DTC B2343 is not output.

END (PROBLEM DUE TO INITIALIZATION FAILURE)

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

Switch Failure (B2342)

DESCRIPTION This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) detects that the sliding roof switch is stuck for 30 seconds or more. DTC No. ...

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Sliding Roof (Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly)) DTC Code Detection Item See page B2341 ...

Other materials:

Check Mode Procedure
CHECK MODE PROCEDURE 1. DESCRIPTION (a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are detected with 1 trip detection logic. ...

Steering Angle Sensor (C1A47)
DESCRIPTION The blind spot monitor sensor receives steering angle signals from the spiral cable with sensor sub-assembly via CAN communication. DTC Code DTC Detection Condition Trouble Area C1A47 A fail flag is transmitted from the ste ...

Push Switch / Key Unlock Warning Switch Malfunction (B2780)
DESCRIPTION This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is ON even when the key is in the ignition key cylinder. Under normal conditions, the unlock warning switch assembly is ON when the key is in the ignition key cylinder. ...