Rear Seat Heater Control Unit Connector for Inputs and Outputs
Rear Seat Heater Control Unit 24P Connector (female terminals)


Terminal number
Terminal name
Description
Signal
1
RR L SEAT HEATER
Drives left rear seat heater
With left rear seat heater operation: pulse (depending on driver's seat temperature)
If none of above conditions are met: less than 0.2 V
2
RR H/SEAT RLY SW
Detects rear seat heater relay signal
With vehicle in ON mode: about battery voltage
3
RR R SEAT HEATER
Drives left rear seat heater
With left rear seat heater operation: pulse (depending on front passenger's seat temperature)
If none of above conditions are met: less than 0.2 V
4
GND
Rear seat heater control unit ground
Less than 0.2 V at all times
5
???
Not used
???
6
???
Not used
???
7
HEAT IND SW RR L
Detects left rear seat heater switch signal
With vehicle in ON mode and left rear seat heater switch pressed: about battery voltage
If none of above conditions are met: less than 0.2 V
8
HEAT IND SW RR R
Detects right rear seat heater switch signal
With vehicle in ON mode and right rear seat heater switch pressed: about battery voltage
If none of above conditions are met: less than 0.2 V
9
???
Not used
???
10
???
Not used
???
11
???
Not used
???
12
RR L H/SEAT TH?
Detects left rear seat heater thermistor signal
With vehicle in ON mode: about 0.4 - 4.9 V (depending on left rear seat temperature)
13
RR R H/SEAT TH?
Detects right rear seat heater thermistor signal
With vehicle in ON mode: about 0.4 - 4.9 V (depending on right rear seat temperature)
14
IG1 OPTION
IG1 power source
With vehicle in ON or START mode: about battery voltage
15
IND STATE
Detects indicator dimming signal
???
16
HEAT IND LO RR L
Outputs left rear seat heater switch LO indicator signal
With vehicle in ON mode and left rear seat heater switch LO indicator OFF: about battery voltage
If none of above conditions are met: less than 0.2 V
17
HEAT IND MID RR L
Outputs left rear seat heater switch MID indicator signal
With vehicle in ON mode and left rear seat heater switch MID indicator OFF: about battery voltage
If none of above conditions are met: less than 0.2 V
18
HEAT IND HI RR L
Outputs left rear seat heater switch HI indicator signal
With vehicle in ON mode and left rear seat heater switch HI indicator OFF: about battery voltage
If none of above conditions are met: less than 0.2 V
19
HEAT IND LO RR R
Outputs right rear seat heater switch LO indicator signal
With vehicle in ON mode and right rear seat heater switch LO indicator OFF: about battery voltage
If none of above conditions are met: less than 0.2 V
20
HEAT IND MID RR R
Outputs right rear seat heater switch MID indicator signal
With vehicle in ON mode and right rear seat heater switch MID indicator OFF: about battery voltage
If none of above conditions are met: less than 0.2 V
21
HEAT IND HI RR R
Outputs right rear seat heater switch HI indicator signal
With vehicle in ON mode and right rear seat heater switch HI indicator OFF: about battery voltage
If none of above conditions are met: less than 0.2 V
22
RR L H/SEAT TH?
Ground for left rear seat heater thermistor signal
Less than 0.2 V at all times
23
RR R H/SEAT TH?
Ground for right rear seat heater thermistor signal
Less than 0.2 V at all times
24
???
Not used
???