
Troubleshooting
4. DOOR SWITCH INPUT CIRCUIT
SUB FUSIBLE LINK
DOOR SWITCH
Checking individual part:
Door switch Refer to GROUP
Assembly.
Description of operation
When the door is closed (the door switch is switched OFF),
HIGH-level signals are sent to the ECU.
When the door is opened (the door switch is switched ON),
LOW-level signals are sent to the ECU.
ECU terminal voltage (Connection condition of the ECU)
ECU
terminal No.
Signal
I
Condition
Driver door
switch
Driver
door
Open
OV
Closed
Passenger
door switch
Open
OV
door
Closed
Measurement is not possible by using a voltmeter, but
possible by using an oscilloscope.
Checking the door switch circuit (Disconnect the connector of
the
check at the wiring harness
ECU
No.
Connected
to/measured
Passenger
door switch
Resistance
Resistance
Tester
connection
Check condition
Driver
door
Closed
Open Continuity
Summary of Contents for Laser 1991
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Page 7: ...DIODE LOCATION 8 7 Interior Rear section ...
Page 24: ...8 24 NOTES ...
Page 42: ...8 42 NOTES ...
Page 72: ...8 72 CIRCUIT DIAGRAMS MPI Circuit 2 OL DOHC Engine Non Turbo ...
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Page 94: ...8 94 CIRCUIT DIAGRAMS ELC 4 Speed Automatic Transaxle Circuit c D i a g n o s i s ...
Page 103: ...CIRCUIT DIAGRAMS Air Conditioner Circuit 84 03 16A0712 1 Heater relay i ...
Page 110: ...8 110 CIRCUIT DIAGRAMS Buzzer Circuit COMPONENTS LOCATION Name Symbol Seat belt timer A ...
Page 119: ... CIRCUIT DIAGRAMS Anti Lock Braking System ABS Circuit 8 713 16AO734 light connector ...
Page 120: ...8 120 CIRCUIT DIAGRAMS Anti Lock Braking System ABS Circuit ...
Page 129: ...Auto cruise indicator light I Vehicle speed sensor Reed switch 1eAo728 ...
Page 140: ......
Page 315: ...NOTES ...
Page 316: ...NOTES ...
Page 317: ...NOTES ...
Page 318: ......
Page 319: ...NOTES ...
Page 320: ... I ...