DTC    B1584    Panel Switch Malfunction

for Preparation Click here


DESCRIPTION

When the power switch is on (ACC), if the display module board judges that the "TILT" switch in the multi-display switch is stuck, this DTC will be stored.

DTC No.
DTC Detection Condition
Trouble Area
B1584
Multi-display switch malfunction
  1. Multi-display switch
  2. Wire harness or connector
  3. Display module board

WIRING DIAGRAM


E187392E05


INSPECTION PROCEDURE

1.CHECK DTC

  1. Clear the DTC (Click here).

  1. Recheck for DTCs and check if the same DTC is output again.

    OK:
    No DTCs are output.



NG
Go to step 2
OK

END 

2.INSPECT MULTI-DISPLAY SWITCH


    E210271E07

  1. Disconnect the H89 multi-display switch connector.

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

    Standard Resistance:
    for LHD 
    Tester Connection
    		Condition
    		Specified Condition
    H89-11 (SW2) - H89-6 (E)
    		"TILT" switch not pressed
    		10 kΩ or higher
    H89-11 (SW2) - H89-6 (E)
    		"TILT" switch pressed
    		Below 1 Ω
    for RHD 
    Tester Connection
    		Condition
    		Specified Condition
    H89-12 (SW1) - H89-6 (E)
    		"TILT" switch not pressed
    		10 kΩ or higher
    H89-12 (SW1) - H89-6 (E)
    		"TILT" switch pressed
    		Below 1 Ω

    Text in Illustration 
    *a
    		Component without harness connected
    (Multi-display Switch)



NG
REPLACE MULTI-DISPLAY SWITCH (Click here)
OK


3.CHECK HARNESS AND CONNECTOR

  1. Disconnect the H89 multi-display switch connector.

  1. Disconnect the H21display module board.

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

    Standard Resistance:
    for LHD 
    Tester Connection
    		Condition
    		Specified Condition
    H89-11 (SW2) - H21-14 (VDD)
    		Always
    		Below 1 Ω
    H89-11 (SW2) - Body ground
    		Always
    		10 kΩ or higher
    H89-6 (E) - Body ground
    		Always
    		Below 1 Ω
    for RHD 
    Tester Connection
    		Condition
    		Specified Condition
    H89-12 (SW1) - H21-14 (VDD)
    		Always
    		Below 1 Ω
    H89-12 (SW1) - Body ground
    		Always
    		10 kΩ or higher
    H89-6 (E) - Body ground
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE DISPLAY MODULE BOARD (Click here)