ROOF SUNSHADE SYSTEM, Diagnostic DTC:B2342

DTC Code DTC Name
B2342 Switch Failure

DESCRIPTION

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

DTC Code

DTC Detection Condition

Trouble Area

B2342

Sliding roof drive gear detects that the roof sunshade switch in the map light is stuck for 30 seconds or more.

  • Sliding roof drive gear sub-assembly

  • Map light assembly (Roof sunshade switch)

  • Harness or connector

WIRING DIAGRAM

B216627E03

PROCEDURE

  1. CHECK FOR DTC

    1. Clear the DTCs (Click here).

    2. Check for DTCs (Click here).

      Table 1. Result

      Result

      Proceed to

      DTC B2342 is output

      A

      DTC is not output

      B

    USE SIMULATION METHOD TO CHECK

    (Click here)

  2. READ VALUE USING INTELLIGENT TESTER (SWITCH STATUS)

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

      Table 2. Sliding Roof

      Tester Display

      Measurement Item/Range

      Normal Condition

      Diagnostic Note

      Close Switch Failure(Current)

      Close switch failure signal (Current) / Fail or Not Fail

      Fail: Roof sunshade close signal failure (Current)

      Not Fail: No roof sunshade close signal failure (Current)

      -

      Open Switch Failure(Current)

      Open switch failure signal (Current) / Fail or Not Fail

      Fail: Roof sunshade open signal failure (Current)

      Not Fail: No roof sunshade open signal failure (Current)

      -

      Close Switch Failure(Past)

      Close switch failure signal (Past) / Fail or Not Fail

      Fail: Roof sunshade close signal failure (Past)

      Not Fail: No roof sunshade close signal failure (Past)

      -

      Open Switch Failure(Past)

      Open switch failure signal (Past) / Fail or Not Fail

      Fail: Roof sunshade open signal failure (Past)

      Not Fail: No roof sunshade open signal failure (Past)

      -

      OK

      "Not Fail" appears on screen.

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY

    (Click here)

  3. INSPECT MAP LIGHT ASSEMBLY (ROOF SUNSHADE SWITCH)

    1. E270005E03

      Remove the map light (Click hereClick here).

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

      Standard Resistance

      Tester Connection

      Switch Condition

      Specified Condition

      11 (UP) - 2 (GND)

      Open switch is pressed

      Below 1 Ω

      11 (UP) - 2 (GND)

      Open switch is not pressed

      10 kΩ or higher

      12 (DOWN) - 2 (GND)

      Close switch is pressed

      Below 1 Ω

      12 (DOWN) - 2 (GND)

      Close switch is not pressed

      10 kΩ or higher

    REPLACE MAP LIGHT ASSEMBLY

    (Click hereClick here)

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

    1. U122568E02

      Disconnect the z3 sliding roof drive gear connector.

    2. Disconnect the Q10 map light connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      z3-7 - Q10-11 (UP)

      Always

      Below 1 Ω

      z3-9 - Q10-12 (DOWN)

      Always

      Below 1 Ω

      Q10-2 (GND) - Body ground

      Always

      Below 1 Ω

      z3-2 - Body ground

      Always

      Below 1 Ω

      z3-7 or Q10-11 (UP) - Body ground

      Always

      10 kΩ or higher

      z3-9 or Q10-12 (DOWN) - Body ground

      Always

      10 kΩ or higher
      Table 3. Text in Illustration

      *1

      Front view of wire harness connector

      (to Sliding Roof Drive Gear)

      *2

      Front view of wire harness connector

      (to Map Light)

    REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR