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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. ).
  • 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.

NG

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

OK

2.

CHECK SLIDING ROOF OPERATION

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

OK:

Auto operation operates normally.

NG

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

OK

3.

CHECK DTC OUTPUT

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

(b) Check for DTCs.

OK:

DTC B2343 is not output.

OK

END (PROBLEM DUE TO INITIALIZATION FAILURE)

NG

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:

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Precaution
PRECAUTION 1. EXPRESSIONS OF IGNITION SWITCH HINT: The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. Expression Ignition Switch (Position) ...

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