PRECAUTION
Note. When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected.
| System Name | See procedure |
|---|---|
| Power Window Control System | INITIALIZATION |
SYSTEM REFERENCE CHART
Scheme 244
Scheme 245
Scheme 246
Scheme 247
Scheme 248
| Sender | Receiver | Signal | Line |
|---|---|---|---|
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch LH (Position Control ECU) | Wireless door unlock signal | BEAN |
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch LH (Position Control ECU) | Smart door unlock signal | BEAN |
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch LH (Position Control ECU) | Brake indicator ON signal | BEAN |
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch RH (Position Control ECU) | Brake indicator ON signal | BEAN |
| Power Source Control ECU | Front Power Seat Switch LH (Position Control ECU) | Key code check signal | BEAN |
| Combination Meter ECU | Front Power Seat Switch LH (Position Control ECU) | Vehicle speed signal | BEAN |
| Combination Meter ECU | Front Power Seat Switch RH (Position Control ECU) | Vehicle speed signal | BEAN |
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch LH (Position Control ECU) | Key ID signal | BEAN |
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch LH (Position Control ECU) | Driver side door courtesy light switch signal | BEAN |
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch LH (Position Control ECU) | Engine switch on (IG) signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU LH | M1 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU LH | M2 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU LH | M3 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU LH | M1 switch call command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU LH | M2 switch call command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU LH | M3 switch call command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Multiplex Tilt & Telescopic ECU | M1 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Multiplex Tilt & Telescopic ECU | M2 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Multiplex Tilt & Telescopic ECU | M3 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Multiplex Tilt & Telescopic ECU | M1 switch call command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Multiplex Tilt & Telescopic ECU | M2 switch call command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Multiplex Tilt & Telescopic ECU | M3 switch call command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Multiplex Tilt & Telescopic ECU | Tilt & telescopic call permission signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Multiplex Tilt & Telescopic ECU | Tilt & telescopic call prohibit signal | BEAN |
| Multiplex Tilt & Telescopic ECU | Front Power Seat Switch LH (Position Control ECU) | Tilt & telescopic call start signal | BEAN |
| Multiplex Tilt & Telescopic ECU | Front Power Seat Switch LH (Position Control ECU) | Tilt & telescopic call completion signal | BEAN |
| Outer Mirror Control ECU LH | Front Power Seat Switch LH (Position Control ECU) | SET switch ON signal | BEAN |
| Outer Mirror Control ECU LH | Front Power Seat Switch LH (Position Control ECU) | M1 switch ON signal | BEAN |
| Outer Mirror Control ECU LH | Front Power Seat Switch LH (Position Control ECU) | M2 switch ON signal | BEAN |
| Outer Mirror Control ECU LH | Front Power Seat Switch LH (Position Control ECU) | M3 switch ON signal | BEAN |
| ECM | Front Power Seat Switch LH (Position Control ECU) | Shift position P signal | BEAN |
| Certification ECU | Front Power Seat Switch LH (Position Control ECU) | Memory call command signal | BEAN |
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch RH (Position Control ECU) | Passenger side door courtesy light switch signal | BEAN |
| Main Body ECU RH (Cowl Side J/B RH) | Front Power Seat Switch RH (Position Control ECU) | Engine switch on (IG) Signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU RH | M1 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU RH | M2 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU RH | M3 switch memory command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU RH | M1 switch call command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU RH | M2 switch call command signal | BEAN |
| Front Power Seat Switch LH (Position Control ECU) | Outer Mirror Control ECU RH | M3 switch call command signal | BEAN |
| Outer Mirror Control ECU RH | Front Power Seat Switch RH (Position Control ECU) | SET switch ON signal | BEAN |
| Outer Mirror Control ECU RH | Front Power Seat Switch RH (Position Control ECU) | M1 switch ON signal | BEAN |
| Outer Mirror Control ECU RH | Front Power Seat Switch RH (Position Control ECU) | M2 switch ON signal | BEAN |
| Outer Mirror Control ECU RH | Front Power Seat Switch RH (Position Control ECU) | M3 switch ON signal | BEAN |
| ECM | Front Power Seat Switch RH (Position Control ECU) | Shift position P signal | BEAN |
COMMUNICATION TABLE
Note. When disconnecting the negative (-) battery cable, initialize the following systems after the cable is reconnected.
| System Name | See procedure |
|---|---|
| Power Window Control System | INITIALIZATION |
SYSTEM REFERENCE CHART
Scheme 249
Scheme 250
CLIMATE CONTROL SYSTEM
| Symptom | Suspected area | See reference |
|---|---|---|
| Climate control seat system does not operate | 1. RH-IG fuse | TERMINALS OF ECU |
| 2. FR S/HTR RH fuse | TERMINALS OF ECU | |
| 3. Seat heater switch | TERMINALS OF ECU | |
| 4. Seat climate blower | TERMINALS OF ECU | |
| 5. Seatback blower | TERMINALS OF ECU | |
| 6. A/C amplifier assembly |
PROBLEM SYMPTOMS CHART
Scheme 251
Scheme 252
- A/C AMPLIFIER ASSEMBLY Measure the voltage and resistance according to the value(s) in the table below. Voltage TESTER CONDITION SPECIFIED CONDITION CHART Symbols (Terminal No. Wiring Color Terminal Description Condition Specified Condition SW-5 (J59-2) - Body ground LG - Body ground Input climate control signal (Driver side) Always 10 to 14 V SW-4 (J59-3) - Body ground R - Body ground Input climate control signal (Passenger side) Always 10 to 14 V S5-4 (J59-7) - Body ground BR - Body ground GND Engine switch on (IG) 4 to 6 V SG-4 (J59-10) - Body ground GR - Body ground Power supply Always 10 to 14 V Standard TESTER CONDITION SPECIFIED CONDITION CHART Symbols (Terminal No. Wiring Color Terminal Description Condition Specified Condition ROUT (J59-8) - Body ground W - Body ground Output climate control signal (Front RH side) Engine switch on (IG) Pulse generation LOUT (J59-16) - Body ground Y - Body ground Output climate control signal (Front LH side) Engine switch on (IG) Pulse generation Waveform (Reference): Using an oscilloscope: WAVEFORM REFERENCE CHART Item Condition Tool setting 2 V/DIV., 500 ., Vehicle condition Turn the engine switch on (IG)