Pulse Sensor And Its Circuit Inspection (Pinching Prevention Function Model) - Suzuki 2006 SX4 Service Manual

9E-23 Glass / Windows / Mirrors:
Pulse Sensor and Its Circuit Inspection
(Pinching Prevention Function Model)
NOTE
After replacing or disconnecting the driver
side power window regulator (motor), power
window main switch, battery and/or fuse,
make sure to execute the initial setting, (to
have the door glass closed position learned)
refer to "Power Window Main Switch
Initialization (Pinching Prevention Function
Model)".
Pulse Sensor Circuit Diagram
IG
B
E
SG SA SV SB
SG SA SV SB
3 4
[A]
SB SA
SV
[A]: Power window main switch connector
(viewed from harness side)
[B]: Driver side power window motor connector
(viewed from harness side)
1. Power window main switch
2. Driver side power window motor
3. Pulse sensor 1
4. Pulse sensor 2
S6RW0D9506029
1
2
[B]
SG
SA
SB SV SG
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1) Remove driver side door trim referring to Step 1) to
3) of "Front Door Glass Removal and Installation".
2) Remove power window main switch from driver side
door trim, and them connect connector to power
window main switch.
3) Disconnect power window motor connector.
4) Turn ignition switch to ON position.
5) Check that "SV" wire terminal voltage of power
window motor connector is 10 – 14 V. If voltage is
not satisfied, check power window main switch
circuit for open, short and high resistance. If circuit is
OK, replace power window main switch.
6) Connect power window motor connector.
7) Connect oscilloscope to power window main switch
connector terminals.
8) Check pulse sensor signal by using oscilloscope. If
pulse sensor signal is not satisfied, check pulse
sensor 1 and 2 circuit. If circuit is OK, replace door
window regulator (motor).
Reference Waveform
Measurement CH1: "SA" terminal to "SG" terminal
terminal CH2: "SB" terminal to "SG" terminal
Oscilloscope CH1: 5V/DIV, CH2: 5V/DIV
setting TIME: 10ms/DIV
Measurement Ignition switch is at ON position,
condition driver side power window operate
1. Normal operation
2. Something caught
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