Keyless Access Control Module
| Terminal No. | Contents | Measuring condition | Standard |
|---|---|---|---|
| (B573) No. 1 (+B2) ←→ Chassis ground | +B power supply (SUB) | Always *1 | 9.5 V - 16 V |
| (B573) No. 2 | - | - | - |
| (B573) No. 3 | - | - | - |
| (B573) No. 4 (+B1) ←→ (B573) No. 20 (GND1) | +B power supply (MAIN) | Always *1 | 9.5 V - 16 V |
| (B573) No. 5 | - | - | - |
| (B573) No. 6 (TACH) ←→ Chassis ground | Engine speed | While engine idling | Waveform 2 |
| (B573) No. 7 (SPD) ←→ Chassis ground | Vehicle speed input | Always | 30 kΩ or more |
| (B573) No. 8 (SSW1) ←→ (B573) No. 20 (GND1) | Start switch input 1 | Push button ignition switch released → pressed*1 | Less than 1 Ω→ 10 kΩ or more |
| (B573) No. 9 (SSW2) ←→ (B573) No. 20 (GND1) | Start switch input 2 | Push button ignition switch released → pressed*! | Less than 1 Ω→ 10 kΩ or more |
| (B573) No. 10 (SLR+) ←→ Chassis ground | Steering lock motor power supply signal output | Always *1 | 10 kΩ or more |
| (B573) No. 11 (SLP) ←→ (B573) No. 20 (GND1) | Steering lock position input | With ignition switch OFF and shift position P, and with push button ignition switch pressed, Steering lock → Steering unlock | 9.5 V or more → 1.2 V or less |
| (B573) No. 12 (INDW) ←→ (B573) No. 20 (GND1) | Indicator output (orange) | With ACC ON or IG ON, brake pedal not depressed. | 9.5 V or more |
| (B573) No. 13 | - | - | - |
| (B573) No. 14 (CLUT) ←→ Chassis ground | Clutch switch input | Clutch pedal depressed → Released | 9.5 V or more → less than 1 V |
| (B573) No. 15 | - | - | - |
| (B573) No. 16 (ACCD) ←→ Chassis ground | ACC relay operation request | Always *1 | Depending on vehicle ACC circuit |
| (B573) No. 17 (TSW5) ←→ (B573) No. 20 (GND1) | Lock/unlock button input | Power OFF, all doors closed, all doors locked, trunk opener button OFF → ON | 9.5 V or more → less than 2 V |
| (B573) No. 18 (IDW) ←→ Chassis ground | ID code box presence judgment | Always *1 | ID code box present: less than 1 Ω ID code box absent: 1M Ω or more |
| (B573) No. 19 (ACCR) ←→ (B573) No. 20 (GND1) | ACC cutoff input | Brake pedal depressed, push button ignition switch pressed (while cranking) → Except when cranking | Less than 2 V → 9.5 V or more |
| (B573) No. 20 (GND1) ←→ Chassis ground | GND | Always *1 | Less than 1 Ω |
| (B573) No. 21 | - | - | - |
| (B573) No. 22 | - | - | - |
| (B573) No. 23 (STSW) ←→ (B573) No. 20 (GND1) | Starter operation request output | Shift lever is in position P or position N and access key is in passenger room. While depressing the brake pedal, press the push button ignition switch (engine starts). | Less than 2 V → 9.5 V or more |
| (B573) No. 24 | - | - | - |
| (B573) No. 25 (INDS) ←→ Chassis ground | Indicator output (green) | With ACC ON or IG ON, brake pedal depressed | 9.5 V or more |
| (B573) No. 26 (SWIL) ←→ Chassis ground | Start switch character illumination | When illumination of start switch goes off, the headlight is OFF → ON, after setting the illumination control to MAX | Less than 2 V → 9.5 V or more |
| (B573) No. 27 (IG2D) ←→ Chassis ground | IG2 relay drive output | Always *1 | Depending on vehicle relay circuit |
| (B573) No. 28 (IG1D) ←→ Chassis ground | IG1 relay drive output | Always *1 | Depending on vehicle relay circuit |
| (B574) No. 1 (CG7B) ←→ (B574) No. 17 (GND2) | Trunk room antenna - | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected |
| (B574) No. 2 (CLG7) ←→ (B574) No. 17 (GND2) | Trunk room antenna + | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected |
| (B574) No. 3 (CG6B) ←→ (B574) No. 17 (GND2) | Rear interior antenna - | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected |
| (B574) No. 4 (CLG2) ←→ (B574) No. 17 (GND2) | Passenger side external antenna + | Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room | No pulse output → Pulse output detected |
| (B574) No. 5 (CG1B) ←→ (B574) No. 17 (GND2) | Driver side external antenna - | Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room | No pulse output → Pulse output detected |
| (B574) No. 6 (CLG1) ←→ (B574) No. 17 (GND2) | Driver side external antenna + | Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room | No pulse output → Pulse output detected |
| (B574) No. 7 (CG8B) ←→ (B574) No. 17 (GND2) | Rear exterior antenna - | Power OFF, all doors closed, all doors locked, trunk opener button OFF → ON | No pulse output → Pulse output detected |
| (B574) No. 8 (CLG8) ←→ (B574) No. 17 (GND2) | Rear exterior antenna + | Power OFF, all doors closed, all doors locked, trunk opener button OFF → ON | No pulse output → Pulse output detected |
| (B574) No. 9 (CLG6) ←→ (B574) No. 17 (GND2) | Rear interior antenna + | Power OFF, all doors closed, all doors locked, trunk opener button OFF → ON | No pulse output → Pulse output detected |
| (B574) No. 10 | - | - | - |
| (B574) No. 11 | - | - | - |
| (B574) No. 12 (CG5B) ←→ (B574) No. 17 (GND2) | Front interior antenna - | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected |
| (B574) No. 13 | - | - | - |
| (B574) No. 14 | - | - | - |
| (B574) No. 15 (EGIO) ←→ (B574) No. 17 (GND2) | Immobilizer collation communication | Ignition switch ON | 7 V or more → pulse generates temporarily |
| (B574) No. 16 (CG2B) ←→ (B574) No. 17 (GND2) | Passenger side external antenna - | Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room | No pulse output → Pulse output detected |
| (B574) No. 17 (GND2) ←→ Chassis ground | GND | Always | Less than 1 Ω |
| (B574) No. 18 (P) ←→ Chassis ground | Shift P position input | Except for shift positions P → Shift position P | Depending on shift position internal resistance |
| (B574) No. 19 (TXCT) ←→ (B574) No. 17 (GND2) | Immobilizer signal reception (start switch) | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less |
| Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch. (With the access key battery removed) | Waveform 3 | ||
| (B574) No. 20 (LIN) ←→ (B574) No. 17 (GND2) | LIN communication | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation |
| (B574) No. 21 (VC5) ←→ (B574) No. 17 (GND2) | Immobilizer amplifier power supply | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less |
| Within 30 seconds after the push button ignition switch is pressed with IGN OFF and access key not in the passenger room | Waveform 4 | ||
| (B574) No. 22 (CODE) ←→ (B574) No. 17 (GND2) | Immobilizer signal reception (start switch) | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less |
| Within 30 seconds after the push button ignition switch is pressed with IGN OFF and access key not in the passenger room | Waveform 1 | ||
| (B574) No. 23 | - | - | - |
| (B574) No. 24 (AGND) ←→ Chassis ground | Immobilizer amplifier GND | Always *1 | 1 ess than 1 Ω |
| (B574) No. 25 (CLG5) ←→ (B574) No. 17 (GND2) | Front interior antenna + | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON | No pulse output → Pulse output detected |
| (B574) No. 26 | - | - | - |
| (B574) No. 27 (STP1) ←→ Chassis ground | St op light switch input | Brake pedal depressed → released | 9.5 V or more → 1 V or less |
| (B574) No. 28 | - | - | - |
| (B574) No. 29 (CANL) ←→ Chassis ground | CAN communication (Lo) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation |
| (B574) No. 30 (CANH) ←→ Chassis ground | CAN communication (Hi) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation |
NOTE:
*1: Perform while the keyless access control module connector is disconnected.
- Waveform 1
Item Contents Measured terminal (B574) No. 22 (CODE) ←→ (B574) No. 17 (GND2) Equipment setting 2 V/DIV, 20 ms/DIV Measuring condition Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch (with the access key battery removed). - Waveform 2
Item Contents Measured terminal (B573) No. 6 (TACH) ←→ Chassis ground Equipment setting 5 V/DIV, 100 ms/DIV Measuring condition While engine idling - Waveform 3
Item Contents Measured terminal (B574) No. 19 (TXCT) ←→ (B574) No. 17 (GND2) Equipment setting 2 V/DIV, 20 ms/DIV Measuring condition Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch (with the access key battery removed). - Waveform 4
Item Contents Measured terminal (B574) No. 21 (VC5) ←→ (B574) No. 17 (GND2) Equipment setting 2 V/DIV, 200 ms/DIV Measuring condition Within 30 seconds after the push button ignition switch is pressed with IG OFF and access key not in the passenger room