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Home >> Volvo >> 2007 >> V70 Base, 2.4 64 >> Repair and Diagnosis >> Body & Frame >> Seats >> Power Seat Module (PSM) - Specifications >> Power Seat Module (PSM) Signal Description (2001-2007) >> Signal Specification, Power Seat Module >> Output Signals To The Motors >> Connector, Black (12-Pin)
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Connector, Black (12-Pin)

Fig 1: Audio Control Module (AUM)/External Amplifier To Loudspeakers, Gray Connector
GLL104014Courtesy of VOLVO CARS OF NORTH AMERICA.

Before taking any readings, read Connecting the breakout box and checking the ground terminals .

Terminals E1-E12 correspond to terminals 15-26 on the breakout box.

Terminal  Terminal on the breakout box Signal type  Not operated  During operation  Other 
#E1 #15 Positive power supply (M1+), motor for front-rear adjustment, forward U = Ulow U = Ubat
#E2 #16 Negative supply (M1-), motor for front-rear adjustment, back U = Ulow U = Ubat
#E3 #17 Signal (H1+), hall sensor 1 U = Ubat A pulsed signal with duty = 50%
f<= 100 Hz
One pulse / engine revolution
High pulse value: Ubat
Low pulse value: 7.0-9.0 V (60-70% of Ubat
#E4 #18 Signal ground (H1G), hall sensor 1 U = Ulow U = Ulow
#E5 #19 Positive power supply (M3+), motor for rear height adjustment, up U = Ulow U = Ubat
#E6 #20 Negative supply (M3-), motor for rear height adjustment, down U = Ulow U = Ubat
#E7 #21 Signal (H3+), hall sensor 3 U = Ubat A pulsed signal with duty = 50%
f<= 100 Hz
One pulse / engine revolution
High pulse value: Ubat
Low pulse value: 7.0-9.0 V (60-70% of Ubat
#E8 #22 Signal ground (H3G), hall sensor 3 U = Ulow U = Ulow
#E9 #23 Positive power supply (M4+), motor for front height adjustment, down U = Ulow U = Ubat
#E10 #24 Negative supply (M4-), front height adjustment motor down U = Ulow U = Ubat
#E11 #25 Signal (H4+), hall sensor 4 U = Ubat A pulsed signal with duty = 50%
f<= 100 Hz
One pulse / engine revolution
High pulse value: Ubat
Low pulse value: 7.0-9.0 V (60-70% of Ubat
#E12 #26 Signal ground (H4S), hall sensor 4 U = Ulow U = Ulow