| G124-1 (+B) - G124-20 (E) | Power source (+B) | Ignition switch off*1 Always*2 | 11 to 14 V | 
                        
                           | G124-3 (SIG-) - G124-20 (E) | Ground | Always | Below 1 V | 
                        
                           | G124-4 (IND1) - G124-20 (E) | Manual (SOS) switch red indicator illumination signal | For 2 seconds after ignition switch turned to ON | 1 to 8.5 V | 
                        
                           | Ignition switch off | Below 1 V | 
                        
                           | G124-5 (MCVD) - G124-20 (E) | Telephone microphone assembly power supply | Ignition switch ON | 4 to 6 V | 
                        
                           | Ignition switch off | Below 1 V | 
                        
                           | G124-6 (MCI+) - G124-20 (E) | Receive microphone voice signal | Voice being input to telephone microphone assembly | A waveform synchronized with microphone voice signal is input | 
                        
                           | G124-7 (MCI-) - G124-20 (E) | Receive microphone voice signal | Always | Below 1 V | 
                        
                           | G124-13 (GSW) - G124-20 (E) | Collision detection signal | Ignition switch ON | Pulse generation (Refer to waveform 1) | 
                        
                           | G124-19 (IG2) - G124-20 (E) | Power source (IG) | Ignition switch ON | 11 to 14 V | 
                        
                           | Ignition switch off | Below 1 V | 
                        
                           | G124-20 (E) - Body ground | Ground | Always | Below 1 Ω | 
                        
                           | G124-21 (SIG1) - G124-3 (SIG-) | Manual (SOS) switch button condition signal | Manual (SOS) switch not pressed | 1.3 to 1.9 V | 
                        
                           | Manual (SOS) switch pressed | 0.5 to 0.8 V | 
                        
                           | G124-22 (IND2) - G124-20 (E) | Manual (SOS) switch green indicator illumination signal | For 2 seconds after ignition switch turned to ON | 1 to 8.5 V | 
                        
                           | Ignition switch off | Below 1 V | 
                        
                           | G124-23 (SGND) - G124-20 (E) | Shield ground | Always | Below 1 Ω | 
                        
                           | G124-25 (CANP) | CAN communication signal | - | - | 
                        
                           | G124-26 (CANN) | CAN communication signal | - | - |