Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - SEAT
CLIMATE CONTROL SEAT SYSTEM - TERMINALS OF ECU
| CHECK SEAT CLIMATE CONTROL ECU LH |
Disconnect the c35 seat climate control ECU LH connector.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| c35-12 (B) - Body ground | G - Body ground | Battery power supply | Always | 11 to 14 V |
| c35-13 (IG) - Body ground | G - Body ground | Ignition power supply | Engine switch on (IG) | 11 to 14 V |
| c35-15 (V5) - c35-6 (VS) | B - G | Front seat heater switch (LH side) signal | Front seat heater switch (LH side) (blower on HI) | Below 100 Ω |
| c35-15 (V5) - c35-17 (VG) | B - BR | Front seat heater switch (LH side) signal | Always | 4 to 6 kΩ |
| c35-3 (GND) -Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
Reconnect the c35 seat climate control ECU LH connector.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| c35-15 (V5) - Body ground | B - Body ground | Front seat heater switch (LH side) power supply | Engine switch on (IG) | 4.7 to 5.2 V |
| c35-26 (IND) - Body ground | L - Body ground | Seat heater switch indicator light (LH side) illumination signal | Engine switch on (IG), front LH blower fan operating (seat heater switch indicator light [LH side] illuminated) | Below 1 V |
| Engine switch on (IG), front LH blower fan not operating (seat heater switch indicator light [LH side] not illuminated) | 11 to 14 V | |||
| c35-24 (BCS) - c35-1 (BFC-) | L - B | Front climate control blower LH drive signal | Engine switch on (IG), front seat heater switch (LH side) off | Below 1 V |
| Engine switch on (IG), front seat heater switch (LH side) on (blower on HI) | 12.6 to 13.4 V |
| CHECK SEAT CLIMATE CONTROL ECU RH |
Disconnect the c32 seat climate control ECU RH connector.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| c32-12 (B) - Body ground | G - Body ground | Battery power supply | Always | 11 to 14 V |
| c32-13 (IG) - Body ground | G - Body ground | Ignition power supply | Engine switch on (IG) | 11 to 14 V |
| c32-15 (V5) - c32-6 (VS) | B - W | Front seat heater switch (RH side) signal | Front seat heater switch (RH side) (blower on HI) | Below 100 Ω |
| c32-15 (V5) - c32-17 (VG) | B - BR | Front seat heater switch (RH side) signal | Always | 4 to 6 kΩ |
| c32-3 (GND) -Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
Reconnect the c32 seat climate control ECU RH connector.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| c32-15 (V5) - Body ground | B - Body ground | Front seat heater switch (RH side) power supply | Engine switch on (IG) | 4.7 to 5.2 V |
| c32-26 (IND) - Body ground | R - Body ground | Seat heater switch indicator light (RH side) illumination signal | Engine switch on (IG), front RH blower fan operating (seat heater switch indicator light [RH side] illuminated) | Below 1 V |
| Engine switch on (IG), front RH blower fan not operating (seat heater switch indicator light [RH side] not illuminated) | 11 to 14 V | |||
| c32-24 (BCS) - c32-1 (BFC-) | L - B | Front climate control blower RH drive signal | Engine switch on (IG), front seat heater switch (RH side) off | Below 1 V |
| Engine switch on (IG), front seat heater switch (RH side) on (blower on HI) | 12.6 to 13.4 V |