Terminals Of Ecu
WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK MULTI-DISPLAY MULTI-DISPLAY
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND1 (M5-3) - Body ground W-B - Body ground Ground Always Below 1 V TX1+ (M5-4) - GND1 (M5-3) P - W-B AVC-LAN communication signal Turn ignition switch ON 2 to 3 V TX1- (M5-5) - GND1 (M5-3) L-B - W-B AVC-LAN communication signal Turn ignition switch ON 2 to 3 V TC (M5-7) - GND1 (M5-3) P-B - W-B Diagnosis ON signal Turn ignition switch ON 9 to 14 V IG (M5-10) - GND1 (M5-3) B-W - W-B Ignition (ON) Turn ignition switch OFF Below 1 V IG (M5-10) - GND1 (M5-3) B-W - W-B Ignition (ON) Turn ignition switch ON 10 to 14 V ACC (M5-11) - GND1 (M5-3) GR - W-B Accessory (ON) Turn ignition switch OFF Below 1 V ACC (M5-11) - GND1 (M5-3) GR - W-B Accessory (ON) Turn ignition switch ACC or ON 10 to 14 V B1 (M5-12) - GND1 (M5-3) L-W - W-B Battery Always 10 to 14 V PKB (M5-16) - GND1 (M5-3) R-W - W-B Parking brake signal Turn parking brake switch ON Below 1 V PKB (M5-16) - GND1 (M5-3) V - W-B Parking brake signal Turn parking brake switch OFF 10 to 14 V SPD (M5-25) - GND1 (M5-3) V - W-B Speed signal from combination meter See vehicle signal check mode SGND (M6-3) - GND1 (M5-3) W-B - W-B Screen noise or other types of noise occur Ignition switch OFF Below 1 V MIN+ (M6-4) - GND1 (M5-3) B - W-B Microphone voice signal See microphone check - MIN- (M6-5) - Body ground W - Body ground Microphone voice signal See microphone check - MACC (M6-6) - GND1 (M5-3) Y-G - W-B Microphone Accessory Turn ignition switch OFF Below 1 V MACC (M6-6) - GND1 (M5-3) Y-G - W-B Microphone Accessory Turn ignition switch ON 10 to 14 V TX3+ (M6-11) - GND1 (M5-3) P-L - W-B AVC-LAN communication signal Turn ignition switch ON 2 to 3 V TX3- (M6-12) - GND1 (M5-3) P-B - W-B AVC-LAN communication signal Turn ignition switch ON 2 to 3 V TX+ (M6-13) - GND1 (M5-3) P - W-B AVC-LAN communication signal Turn ignition switch ON 2 to 3 V TX- (M6-14) - GND1 (M5-3) L - W-B AVC-LAN communication signal Turn ignition switch ON 2 to 3 V SGND (M6-17) - GND1 (M5-3) Shielded - W-B Screen noise or other types of noise occur Ignition switch OFF Below 1 V MCO+ (M6-18) - GND1 (M5-3) B - W-B Microphone voice signal See microphone check - MCO- (M6-19) - GND1 (M5-3) W - W-B Microphone voice signal See microphone check - IVO+ (M6-21) - GND1 (M5-3) O - W-B Telephone voice signal (bluetooth) See microphone check - IVO- (M6-22) - GND1 (M5-3) W - W-B Telephone voice signal (bluetooth) See microphone check - VR - (M6-23) - GND1 (M5-3) B - W-B Video return signal Turn ignition switch OFF Below 1 V R - (M6-24) - GND1 (M5-3) Y - W-B Display signal (red) Navigation display is on Pulse generation *2 G - (M6-25) - GND1 (M5-3) W - W-B Display signal (green) Navigation display is on Pulse generation *2 B - (M6-26) - GND1 (M5-3) R - W-B Display signal (blue) Navigation display is on Pulse generation *2 SYNC (M6-27) - GND1 (M5-3) G - W-B Display signal (synchronize) Navigation display is on Pulse generation *1 VG (M6-28) - Body ground Shielded - Body ground Shielded ground Always Below 1 V NTSC (M7-1) - GND1 (M5-3) W - W-B DVD screen is in disorder Ignition switch ON and DVD displayed Pulse generation *3 SGD1 (M7-4) - GND1 (M5-3) B - W-B Screen noise or other types of noise occur Ignition switch OFF Below 1 V SGND (M7-5) - GND1 (M5-3) Shielded - W-B Screen noise or other types of noise occur Ignition switch OFF Below 1 V - *1: Oscilloscope wave
Terminal to be measured: SYNC - GND1
Setting for measurement: 500 mV/DIV., 10 - sec./DIV.,
Condition: Navigation map is displayed.
- *2: Oscilloscope wave
Terminal to be measured: R, G, B - GND1
Setting for measurement: 200 mV/DIV., 10 - sec./DIV.,
Condition: Navigation map is switched.
- *3: Oscilloscope wave
Terminal to be measured: NTSC - SGD1
Setting for measurement: 0.2 mV/DIV., 0.2 sec./DIV.,
Condition: Ignition switch ON and DVD displayed.
- *1: Oscilloscope wave
- CHECK NAVIGATION ECU NAVIGATION ECU
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition AUI+ (N2-1) - GND (N2-17) P - W-B Sound signal (input) Audio system is playing - AUO+ (N2-2) - GND (N2-17) P - W-B Sound signal (output) Audio system is playing - SLD1 (N2-3) - Body ground Shielded - Body ground Shielded ground Always Below 1.0 V SPD (N2-5) - GND1 (N2-17) V - W-B Speed signal from combination meter See vehicle signal check mode - +B (N2-9) - GND (N2-17) L-Y - W-B Battery Always 10 to 14 V AUI- (N2-10) - GND (N2-17) V - W-B Sound signal (input) Audio system is playing - AUO- (N2-10) - GND (N2-17) V - W-B Sound signal (output) Audio system is playing - VOI+ (N2-12) - Body ground O - Body ground Telephone voice signal (bluetooth) See microphone check - VOI- (N2-13) - Body ground W - Body ground Telephone voice signal (bluetooth) See microphone check - REV (N2-10) - GND (N2-17) R-B - W-B Reverse signal from combination meter See vehicle signal check mode - GND (N2-17) - Body ground W-B - Body ground Ground Always Below 1 V ACC (N2-18) - GND (N2-17) GR - W-B Accessory (ON) Turn ignition switch OFF Below 1 V ACC (N2-18) - GND (N2-17) GR - W-B Accessory (ON) Turn ignition switch ACC or ON 10 to 14 V VR - (N3-1) - GND (N2-17) B - W-B Video return signal Turn ignition switch OFF Below 1 V R - (N3-2) - GND (N2-17) Y - W-B Display signal (red) Navigation display is on Pulse generation *2 B - (N3-3) - GND (N2-17) R - W-B Display signal (blue) Navigation display is on Pulse generation *2 TX+ (N3-5) - GND (N2-17) P - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V VG (N3-6) - Body ground Shielded - Body ground Shielded ground Always Below 1 V G - (N3-7) - GND (N2-17) W - W-B Display signal (green) Navigation display is on Pulse generation *2 SYNC (N3-8) - GND (N2-17) G - W-B Display signal (synchronize) Navigation display is on Pulse generation *1 TX- (N3-10) - GND (N2-17) L-B - W-B AVC-LAN communication signal Turn ignition switch to ACC 2 to 3 V MIC+ (N4-3) - GND (N2-17) B - W-B Microphone voice signal See microphone check - MIC- (N4-5) - GND (N2-17) W - W-B Microphone voice signal See microphone check - SNSE (N4-7) - Body ground W-B - Body ground Ground Always Below 1 V - *1: Oscilloscope wave
Terminal to be measured: SYNC - GND1
Setting for measurement: 500 mV/DIV., 10 sec./DIV.,
Condition: Navigation map is displayed.
- *2: Oscilloscope wave
Terminal to be measured: R, G, B - GND1
Setting for measurement: 200 mV/DIV., 10 sec./DIV.,
Condition: Navigation map is switched.
- *1: Oscilloscope wave
- CHECK RADIO RECEIVER ASSEMBLY RADIO RECEIVER
Symbols (Terminals No.) Condition Specified Condition Problem symptoms when short circuit is detected. +B - GND (R36-1 - R36-20) Always 10 to 14 V Audio system does not operate. AMP - GND (R36-3 - R36-20) - - - MUTE - GND (R36-7 - R36-20) - - "Pop" sound, etc. Audio system does not operate. FR - GND (R36-8 - R36-20) Always 10 to 14 V Sound from front right speaker is low. FL - GND (R36-9 - R36-20) Always 10 to 14 V Sound from front left speaker is low. ACC - GND (R36-11 - R36-20) Ignition switch ACC 10 to 14 V Audio system does not operate. ANT+ - GND (R36-13 - R36-20) Radio switch ON 10 to 14 V Antenna does not extend. RR - GND (R36-18 - R36-20) Always 10 to 14 V Sound from rear right speaker is low. RL - GND (R36-19 - R36-20) Always 10 to 14 V Sound from rear left speaker is small. GND - Body ground (R36-20 -Body ground) Always Below 1 V Audio system is normal. CDR+ (R37-2) - - Sound from right side speaker is low. CDR- (R37-3) - - Sound from right side speaker is low. CDL+ (R37-4) - - Sound from left side speaker is low. CDL- (R37-5) - - Sound from left side speaker is low. MUTE - GND (R36-7 - R36-20) - - "Pop" sound, etc. Audio system does not operate. TX+ - GND (R37-9 - R36-20) AVC-LAN communication circuit - Audio system does not operate. TX- (R37-10) AVC-LAN communication circuit - Audio system does not operate. TX+ (R38-9) AVC-LAN communication circuit - Audio system does not operate. TX- (R38-10) AVC-LAN communication circuit - Audio system does not operate. - CHECK STEREO COMPONENT AMPLIFIER
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
STEREO COMPONENT AMPLIFIERSymbols (Terminals No.) Condition Specified Condition Problem symptoms when short circuit is detected. FR+ - E (S6-1 - S6-12) Radio switch ON 5 to 7 V RH side speaker does not sound. FL+ - E (S6-2 - S6-12) Radio switch ON 5 to 7 V LH side speaker does not sound. RR+ - E (S6-3 - S6-12) Radio switch ON 5 to 7 V Rear RH side speaker does not sound. RL+ - E (S6-4 - S6-12) Radio switch ON 5 to 7 V Rear LH side speaker does not sound. WFR+ - E (S6-5 - S6-12) Radio switch ON 5 to 7 V Rear RH side speaker does not sound. WFL+ - E (S6-6 - S6-12) Radio switch ON 5 to 7 V Rear LH side speakers do not sound. +B - E (S6-7 - S6-12) Always 10 to 14 V All speakers do not sound. FR- - E (S6-8 - S6-12) Radio switch ON 5 to 7 V RH side speaker does not sound. FL- - E (S6-9 - S6-12) Radio switch ON 5 to 7 V LH side speaker does not sound. RR- - E (S6-10 - S6-12) Radio switch ON 5 to 7 V Rear RH side speaker does not sound. RL- - E (S6-11 - S6-12) Radio switch ON 5 to 7 V Rear LH side speaker does not sound. E - Body ground (S6-12 - Body ground) Always Below 1 V - GND2 - Body ground (S6-13 -Body ground) Always Below 1 V - WFR- - E (S6-14 - S6-12) Radio switch ON 5 to 7 V Rear RH side speaker does not sound. WFL- - E (S6-15 - S6-12) Radio switch ON 5 to 7 V Rear LH side speaker does not sound. +B2 - GND2 (S6-16 - S6-13) Always 10 to 14 V All speakers do not sound. AMP (S7-1) - - - ACC - GND2 (S7-2 - S6-13) Ignition switch ACC 10 to 14 V Audio system does not operate. BEEP (S7-4) - - LH side speaker does not sound. FL - GND2 (S7-5 - S6-13) Always 10 to 14 V Sound from front LH speaker is low. FR - GND2 (S7-6 - S6-13) Always 10 to 14 V Sound from front RH speaker is low. SGND - GND2 (S7-11 - S6-13) - 5 to 7 V - MUTE - GND2 (S7-12 - S6-13) Radio switch ON 5 to 7 V Audio system does not operate. RL - GND2 (S7-13 - S6-13) Always 10 to 14 V Sound from rear LH speaker is low. RR - GND2 (S7-2 - S6-13) Always 10 to 14 V Sound from rear RH speaker is low. - CHECK DISC PLAYER CHANGER
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DISC PLAYER CHANGERSymbols (Terminal No.) Condition Specified Condition Problem symptoms when short circuit is detected. ACC - GND (D26-1 - D26-20) Ignition switch ACC 10 to 14 V Disc player changer does not operate. TXM+ - GND (D26-3 - D26-20) AVC-LAN communication circuit - Audio system does not operate. CDR+ (D26-5) - - Sound from right side speaker is low. CDL+ (D26-6) - - Sound from left side speaker is low. NTSC (D26-9) - - - +B - GND (D26-10 - D26-20) Always 10 to 14 V Disc player changer does not operate. MUTE - GND (D26-11 - D26-20) DISC switch ON 5 to 7 V Audio system does not operate. TXM- - GND (D26-13 - D26-20) AVC-LAN communication circuit - Audio system does not operate. CDR- (D26-15) - - Sound from right side speaker is low. CDL- (D26-16) - - Sound from left side speaker is low. - CHECK NETWORK GATEWAY ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NETWORK GATEWAY ECUSymbols (Terminal No.) Wiring Color Condition Specified Condition IG - GND (G4-2 - G4-14) B-W - W-B Ignition switch ON 10 to 14 V MPD1 (G4-4) B Communication circuit (Gateway ECU and Center ECU) - GTX+ (G4-5) P - L AVC-LAN communication circuit - CG - Body ground (G4-7 - Body ground) BR - Body ground Always Below 1 V BATT - GND (G4-8 - G4-14) L-W - W-B Always 10 to 14 V MPD2 (G4-11) P - B Communication circuit (Gateway ECU and Center ECU) - GTX- (G4-12) P - B AVC-LAN communication circuit - GND - Body ground (G4-7 - Body ground) BR - Body ground Always Below 1 V - *1: Oscilloscope wave
Terminal to be measured: SYNC - GND1
Setting for measurement: 500 mV/DIV., 10 sec./DIV.,
Condition: Navigation display is ON.
- *2: Oscilloscope wave
Terminal to be measured: R, G, B - GND1
Setting for measurement: 200 mV/DIV., 10 sec./DIV.,
Condition: Navigation map is switched ON.
- *1: Oscilloscope wave