LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2023 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System (Diagnostics) >> Control Module I/O Signal >> Electrical Specification >> Seat Ventilation Control Module
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Seat Ventilation Control Module

G13202820Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Contents Measuring condition Standard
(R327) No. 1 (+) ←→ Chassis ground (-) Seat heater (driver's side) Ignition switch: ON
Seat heater switch: ON
0 V or battery voltage
(R327) No. 2 - - -
(R327) No. 3 (+) ←→ Chassis ground (-) Seat heater (driver's side) GND Ignition switch: ON
Seat heater switch: ON
Resistance 1 Ω or less
(R327) No. 4 (+) ←→ Chassis ground (-) Seat heater (passenger's side) GND Always Resistance 1 Ω or less
(R327) No. 5 (+) ←→ Chassis ground (-) Seat heater (passenger's side) Ignition switch: ON
Seat heater switch: ON
0 V or battery voltage
(R327) No. 6 - - -
(R327) No. 7 (+) ←→ Chassis ground (-) ACC power supply Ignition switch: ACC Battery voltage
(R327) No. 8 - - -
(R327) No. 9 (+) ←→ Chassis ground (-) GND Always Resistance 1 Ω or less
(R327) No. 10 (+) ←→ Chassis ground (-) ACC power supply Ignition switch: ACC Battery voltage
(R328) No. 1 LIN (communication line) Digital signal; cannot be measured -
(R328) No. 2 - - -
(R328) No. 3 (+) ←→ Chassis ground (-) Seat heater (driver's side) thermistor (+) Ignition switch: ON
Seat heater switch: ON
Varies depending on temperature at seat heater
0 - 5 V
(R328) No. 4 (+) ←→ Chassis ground (-) Seat heater (passenger's side) thermistor (+) Ignition switch: ON
Seat heater switch: ON
Varies depending on temperature at seat heater
0 - 5 V
(R328) No. 5 - - -
(R328) No. 6 - - -
(R328) No. 7 (+) ←→ Chassis ground (-) Seat heater (passenger's side) thermistor (-) Ignition switch: ON
Seat heater switch: ON
Varies depending on temperature at seat heater
0 - 5 V
(R328) No. 8 (+) ←→ Chassis ground (-) Seat heater (driver's side) thermistor (-) Ignition switch: ON
Seat heater switch: ON
Varies depending on temperature at seat heater
0 - 5 V
(R328) No. 9 - - -
(R328) No. 10 - - -
(R328) No. 11 - - -
(R328) No. 12 - - -
(R328) No. 13 - - -
(R328) No. 14 - - -
(R328) No. 15 Blower motor control signal (passenger's side) Digital signal; cannot be measured -
(R328) No. 16 Blower motor control signal (driver's side) Digital signal; cannot be measured -