| 
                               G131-1 (+B) - G131-20 (E) 
                            | 
                           
                               B - W-B*3 
                              BR - W-B*4 
                            | 
                           
                               Power source (+B) 
                            | 
                           
                               Ignition switch off 
                            | 
                           
                               11 to 14 V*3 
                              10.5 to 16 V*4 
                            | 
                        
                        
                           | 
                               G131-3 (SIG-) - G131-20 (E) 
                            | 
                           
                               BR - W-B 
                            | 
                           
                               Ground 
                            | 
                           
                               Always 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-4 (IND1) - G131-20 (E) 
                            | 
                           
                               BR - W-B 
                            | 
                           
                               Manual (SOS) switch red indicator illumination signal 
                            | 
                           
                               For 2 seconds after turning the ignition switch to ON 
                            | 
                           
                               1 to 8.5 V 
                            | 
                        
                        
                           | 
                               Ignition switch off 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-5 (MCVD) - G131-20 (E) 
                            | 
                           
                               B - W-B 
                            | 
                           
                               Telephone microphone assembly power supply 
                            | 
                           
                               Ignition switch ON 
                            | 
                           
                               4 to 6 V 
                            | 
                        
                        
                           | 
                               Ignition switch off 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-6 (MCI+) - G131-20 (E) 
                            | 
                           
                               W - W-B 
                            | 
                           
                               Receive microphone voice signal 
                            | 
                           
                               Voice being input to telephone microphone assembly 
                            | 
                           
                               A waveform synchronized with microphone voice signal is input 
                            | 
                        
                        
                           | 
                               G131-7 (MCI-) - G131-20 (E) 
                            | 
                           
                               R - W-B 
                            | 
                           
                               Receive microphone voice signal 
                            | 
                           
                               Always 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-13 (GSW) - G131-20 (E) 
                            | 
                           
                               BE - W-B 
                            | 
                           
                               Collision detection signal 
                            | 
                           
                               Ignition switch ON 
                            | 
                           
                               Pulse generation (Refer to waveform 1) 
                            | 
                        
                        
                           | 
                               G131-14 (MUTE) - G131-20 (E) 
                            | 
                           
                               BE - W-B 
                            | 
                           
                               MUTE Signal 
                            | 
                           
                               Audio system playing 
                            | 
                           
                               3.5 V or higher 
                            | 
                        
                        
                           | 
                               Emergency call mode 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-15 (USBV) - G131-20 (E) 
                            | 
                           
                               L - W-B 
                            | 
                           
                               DCM (telephone transceiver assembly) power supply signal 
                            | 
                           
                               Ignition switch ON 
                            | 
                           
                               4.75 to 5.25 V 
                            | 
                        
                        
                           | 
                               Ignition switch off 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-16 (MCO+) - G131-20 (E) 
                            | 
                           
                               SB - W-B 
                            | 
                           
                               Microphone voice signal 
                            | 
                           
                               Voice being input to telephone microphone assembly 
                            | 
                           
                               A waveform synchronized with microphone voice signal is input 
                            | 
                        
                        
                           | 
                               G131-17 (VOT+) - G131-20 (E) 
                            | 
                           
                               R - W-B 
                            | 
                           
                               Sent voice signal 
                            | 
                           
                               Calling while using the operator service 
                            | 
                           
                               A waveform synchronized with the received voice is output 
                            | 
                        
                        
                           | 
                               G131-18 (VOR+) - G131-20 (E) 
                            | 
                           
                               B - W-B 
                            | 
                           
                               Receive voice signal 
                            | 
                           
                               Receiving a call while using the operator service 
                            | 
                           
                               A waveform synchronized with the sent voice is output 
                            | 
                        
                        
                           | 
                               G131-19 (IG2) - G131-20 (E) 
                            | 
                           
                               LG - W-B*3 
                              BE - W-B*4 
                            | 
                           
                               Power source (IG) 
                            | 
                           
                               Ignition switch ON 
                            | 
                           
                               11 to 14 V*3 
                              10.5 to 16 V*4 
                            | 
                        
                        
                           | 
                               Ignition switch off 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-20 (E) - Body ground 
                            | 
                           
                               W-B - Body ground 
                            | 
                           
                               Ground 
                            | 
                           
                               Always 
                            | 
                           
                               Below 1 Ω 
                            | 
                        
                        
                           | 
                               G131-21 (SIG1) - G131-3 (SIG-) 
                            | 
                           
                               V - BR 
                            | 
                           
                               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 
                            | 
                        
                        
                           | 
                               G131-22 (IND2) - G131-20 (E) 
                            | 
                           
                               LG - W-B 
                            | 
                           
                               Manual (SOS) switch green indicator illumination signal 
                            | 
                           
                               For 2 seconds after turning the ignition switch to ON 
                            | 
                           
                               1 to 8.5 V 
                            | 
                        
                        
                           | 
                               Ignition switch off 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-23 (SGND) - G131-20 (E) 
                            | 
                           
                               Shielded - W-B 
                            | 
                           
                               Shield ground 
                            | 
                           
                               Always 
                            | 
                           
                               Below 1 Ω 
                            | 
                        
                        
                           | 
                               G131-25 (CANP) 
                            | 
                           
                               R 
                            | 
                           
                               CAN communication signal 
                            | 
                           
                               - 
                            | 
                           
                               - 
                            | 
                        
                        
                           | 
                               G131-26 (CANN) 
                            | 
                           
                               W 
                            | 
                           
                               CAN communication signal 
                            | 
                           
                               - 
                            | 
                           
                               - 
                            | 
                        
                        
                           | 
                               G131-31 (USBG) - Body ground 
                            | 
                           
                               GR - Body ground 
                            | 
                           
                               Shield ground 
                            | 
                           
                               Always 
                            | 
                           
                               Below 1 Ω 
                            | 
                        
                        
                           | 
                               G131-32 (MCO-) - G131-20 (E) 
                            | 
                           
                               V - W-B 
                            | 
                           
                               Microphone voice signal 
                            | 
                           
                               Always 
                            | 
                           
                               Below 1 V 
                            | 
                        
                        
                           | 
                               G131-33 (VOT-) - G131-20 (E) 
                            | 
                           
                               G - W-B 
                            | 
                           
                               Sent voice signal 
                            | 
                           
                               Calling while using the operator service 
                            | 
                           
                               A waveform synchronized with the received voice is output 
                            | 
                        
                        
                           | 
                               G131-34 (VOR-) - G131-20 (E) 
                            | 
                           
                               W - W-B 
                            | 
                           
                               Receive voice signal 
                            | 
                           
                               Receiving a call while using the operator service 
                            | 
                           
                               A waveform synchronized with the sent voice is output 
                            | 
                        
                        
                           | 
                               G133-1 (SPI+) - G131-20 (E) 
                            | 
                           
                               LA-LG - W-B*1 
                              LA-W - W-B*2 
                            | 
                           
                               Sound signal 
                            | 
                           
                               Audio system playing 
                            | 
                           
                               A waveform synchronized with sound signals is output 
                            | 
                        
                        
                           | 
                               G133-2 (SPI-) - G131-20 (E) 
                            | 
                           
                               LA-L - W-B*1 
                              LA-B - W-B*2 
                            | 
                           
                               Sound signal 
                            | 
                           
                               Audio system playing 
                            | 
                           
                               A waveform synchronized with sound signals is output 
                            | 
                        
                        
                           | 
                               G133-3 (SPO+) - G131-20 (E) 
                            | 
                           
                               LA-BE - W-B 
                            | 
                           
                               Sound signal 
                            | 
                           
                               Audio system playing, or emergency call mode 
                            | 
                           
                               A waveform synchronized with sound signals is output 
                            | 
                        
                        
                           | 
                               G133-4 (SPO-) - G131-20 (E) 
                            | 
                           
                               LA-R - W-B*1 
                              LA-L - W-B*2 
                            | 
                           
                               Sound signal 
                            | 
                           
                               Audio system playing, or emergency call mode 
                            | 
                           
                               A waveform synchronized with sound signals is output 
                            | 
                        
                        
                           | 
                               G134-1 (USB-) 
                            | 
                           
                               # 
                            | 
                           
                               USB communication line 
                            | 
                           
                               - 
                            | 
                           
                               - 
                            | 
                        
                        
                           | 
                               G134-2 (USB+) 
                            | 
                           
                               # 
                            | 
                           
                               USB communication line 
                            | 
                           
                               - 
                            | 
                           
                               - 
                            | 
                        
                        
                           | 
                               G134-3 (USBS) - Body ground 
                            | 
                           
                               Shielded - Body ground 
                            | 
                           
                               Shield ground 
                            | 
                           
                               Always 
                            | 
                           
                               Below 1 Ω 
                            |