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Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> Body & Frame >> Seats >> Seats - Testing & Troubleshooting (Except Hybrid) >> Connector View >> Front Seat Heater Control Unit Connector for Inputs and Outputs

Front Seat Heater Control Unit Connector for Inputs and Outputs

Connector Index
Front Seat Heater Control Unit 24P Connector (with auto idle stop system)
Front Seat Heater Control Unit 24P Connector (without auto idle stop system)

Front Seat Heater Control Unit 24P Connector (female terminals) (with auto idle stop system) 

GHH430412Courtesy of HONDA, U.S.A., INC.

Front Seat Heater Control Unit 24P Connector (female terminals) (without auto idle stop system) 

GHH430413Courtesy of HONDA, U.S.A., INC.
Terminal number Terminal name Description Signal
1 HEATER DR Drives driver's seat heater With driver's seat heater operation: pulse (depending on driver's seat temperature) If none of above conditions are met: less than 0.2 V
2 DR H/SEAT LO RLY COM Detects front seat heater relay signal With vehicle in ON mode: about battery voltage
3 AS H/SEAT LO RLY COM Drives front passenger's seat heater With front passenger's 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 Front seat heater control unit ground Less than 0.2 V at all times
5 --- Not used ---
6 --- Not used ---

*1: With auto idle stop system*2: Without auto idle stop system*3: With second row seat heater

Terminal number Terminal name Description Signal
7 --- Not used ---
8 --- Not used ---
9 B-CAN_L Communication line ---
10 B-CAN_H Communication line ---
11 --- Not used ---
12 TH+ DR Detects driver's seat heater thermistor signal With vehicle in ON mode: about 0.4 - 4.9 V (depending on driver's seat temperature)
13 TH+ AS Detects front passenger's seat heater thermistor signal With vehicle in ON mode: about 0.4 - 4.9 V (depending on front passenger's seat temperature)
14 IG1 RELAY1* 1IG1 OPTION* 2 IG1 power source With vehicle in ON or START mode: about battery voltage
15* 3 IND STATE Outputs indicator dimming signal ---
16 --- Not used ---
17 --- Not used ---
18 --- Not used ---
19 --- Not used ---
20 --- Not used ---
21 --- Not used ---
22 TH- DR Ground for driver's seat heater thermistor signal Less than 0.2 V at all times
23 TH- AS Ground for front passenger's seat heater thermistor signal Less than 0.2 V at all times
24 --- Not used ---

*1: With auto idle stop system

*2: Without auto idle stop system

*3: With second row seat heater