RM36D0EC _58 Vehicle Interior _083102 SEAT _0407267 SEAT HEATER SYSTEM(for Gasoline Model) U

SEAT  SEAT HEATER SYSTEM(for Gasoline Model)  TERMINALS OF ECU  


CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (for HI/MID/LO Type Seat Heater)


E407961N10
1.75,0.146 2.104,0.406 0.354,0.26 2.76,0.146 3.115,0.406 0.354,0.26 3.74,0.146 4.094,0.406 0.354,0.26 4.74,0.146 5.094,0.406 0.354,0.26 5.615,0.146 5.969,0.406 0.354,0.26 1.802,0.198 2.115,0.375 0.313,0.177 10 false G50 2.823,0.198 3.135,0.375 0.313,0.177 10 false G48 3.802,0.198 4.115,0.375 0.313,0.177 10 false G47 4.792,0.198 5.104,0.375 0.313,0.177 10 false G46 5.667,0.198 5.979,0.375 0.313,0.177 10 false z11

a.

Disconnect the G46 air conditioning amplifier assembly connector.


b.

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

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
G46-6 (IG+) - Body ground GR - Body ground IG power supply Engine switch on (IG) 11 to 14 V
Engine switch off Below 1 V
G46-17 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω


c.

Reconnect the G46 air conditioning amplifier assembly connector.


d.

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

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
G48-12 (SM1R) - Body ground V - Body ground RH side front seat heater drive signal
·

Engine switch on (IG)

·

RH side refreshing seat switch (seat heater switch) on


Below 1 V
G48-13 (SM1L) - Body ground GR - Body ground LH side front seat heater drive signal
·

Engine switch on (IG)

·

LH side refreshing seat switch (seat heater switch) on


Below 1 V
G50-3 (SG-7) - Body ground GR - Body ground Ground for front seat heater sensor Always Below 1 Ω
G50-12 (TSR) - Body ground GR - Body ground RH side front seat heater sensor input signal - -
G50-13 (TSL) - Body ground GR - Body ground LH side front seat heater sensor input signal - -


e.

Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
G46-7 (LIN1) - Body ground GR - Body ground LIN communication line Engine switch on (IG) Pulse generation



CHECK REFRESHING SEAT SWITCH (SEAT HEATER SWITCH) (for HI/MID/LO Type Seat Heater)


E407962N01
3.396,0.135 3.75,0.375 0.354,0.24 3.458,0.177 3.74,0.354 0.281,0.177 10 false G31

a.

Disconnect the G31 refreshing seat switch (seat heater switch) connector.


b.

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

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
G31-9 (IG) - Body ground LA-R - Body ground IG power supply Engine switch on (IG) 11 to 14 V
Engine switch off Below 1 V
G31-7 (E) - Body ground LA - Body ground Ground Always Below 1 Ω


c.

Reconnect the G31 refreshing seat switch (seat heater switch) connector.


d.

Check for pulses according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
G31-8 (SLIN) - Body ground GR - Body ground LIN communication line Engine switch on (IG) Pulse generation