SLIDING ROOF SYSTEM, Diagnostic DTC:B2342

DESCRIPTION

This DTC is stored when the sliding roof drive gear (sliding roof ECU) detects that the sliding roof switch in the map light is stuck for 30 seconds or more.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

   
   

   1. Clear the DTCs Click here.

   2. Check the DTCs Click here.

      Result

      Result	Proceed to
      DTC B2342 is output	A
      No DTC is output	B

   
   

   B

   USE SIMULATION METHOD TO CHECK Click here

   A

2. READ VALUE USING INTELLIGENT TESTER (SWITCH STATUS)

   
   

   1. Use the Data List to check if the sliding roof switch is functioning properly Click here.

      Sliding Roof

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Open Switch Failure(Past)	OPEN switch failure signal (Past)/ON or OFF	ON: OPEN switch failure signal (Past) OFF: No OPEN switch failure signal (Past)	-
      Close Switch Failure(Past)	CLOSE switch failure signal (Past)/ON or OFF	ON: CLOSE switch failure signal (Past) OFF: No CLOSE switch failure signal (Past)	-
      Up Switch Failure(Past)	UP switch failure signal (Past)/ON or OFF	ON: UP switch failure signal (Past) OFF: No UP switch failure signal (Past)	-
      Down Switch Failure(Past)	DOWN switch failure signal (Past)/ON or OFF	ON: DOWN switch failure signal (Past) OFF: No DOWN switch failure signal (Past)	-
      Open Switch Failure(Current)	OPEN switch failure signal (Current)/ON or OFF	ON: OPEN switch failure signal (Current) OFF: No OPEN switch failure signal (Current)	-
      Close Switch Failure(Current)	CLOSE switch failure signal (Current)/ON or OFF	ON: CLOSE switch failure signal (Current) OFF: No CLOSE switch failure signal (Current)	-
      Up Switch Failure(Current)	UP switch failure signal (Current)/ON or OFF	ON: UP switch failure signal (Current) OFF: No UP switch failure signal (Current)	-
      Down Switch Failure(Current)	DOWN switch failure signal (Current)/ON or OFF	ON: DOWN switch failure signal (Current) OFF: No DOWN switch failure signal (Current)	-

      OK
      "OFF" appears on screen.

   
   

   NG

   INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) Click here

   OK

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

3. INSPECT MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH)

   

   
   

   1. Remove the map light Click here.

   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition A-24 (UP) - A-16 (GND9) UP switch is pressed Below 1 Ω A-24 (UP) - A-16 (GND9) UP switch is not pressed 10 kΩ or higher A-23 (DWN) - A-16 (GND9) DOWN switch is pressed Below 1 Ω A-23 (DWN) - A-16 (GND9) DOWN switch is not pressed 10 kΩ or higher B-3 (OPN) - A-16 (GND9) OPEN switch is pressed Below 1 Ω B-3 (OPN) - A-16 (GND9) OPEN switch is not pressed 10 kΩ or higher B-12 (CLS) - A-16 (GND9) CLOSE switch is pressed Below 1 Ω B-12 (CLS) - A-16 (GND9) CLOSE switch is not pressed 10 kΩ or higher

   
   

   NG

   REPLACE MAP LIGHT ASSEMBLY (SLIDING ROOF SWITCH) Click here

   OK

4. CHECK HARNESS AND CONNECTOR (SLIDING ROOF DRIVE GEAR - MAP LIGHT)

   

   
   

   1. Disconnect the R5 drive gear connector.

   2. Disconnect the R7 and R12 map light connectors.

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition R5-10 (UP) - R7-24 (UP) Always Below 1 Ω R5-8 (DWN) - R7-23 (DWN) Always Below 1 Ω R5-7 (OPN) - R12-3 (OPN) Always Below 1 Ω R5-9 (CLS) - R12-12 (CLS) Always Below 1 Ω R7-16 (GND9) - Body ground Always Below 1 Ω R5-2 (E) - Body ground Always Below 1 Ω R5-10 (UP) or R7-24 (UP) - Body ground Always 10 kΩ or higher R5-8 (DWN) or R7-23 (DWN) - Body ground Always 10 kΩ or higher R5-7 (OPN) or R12-3 (OPN) - Body ground Always 10 kΩ or higher R5-9 (CLS) or R12-12 (CLS) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

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