Terminals Of Ecu
- CHECK RADIO RECEIVER ASSEMBLY (for Separate Type Amplifier System)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the E62 and E80 receiver connectors.
- Measure the resistance and voltage of the wire harness side connector.TERMINAL DESCRIPTION CHART
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (E62-20) - Body ground BR - Body ground Ground Always Below 1 Ω B (E62-1) - GND (E62-20) L - BR Battery Always 11 to 14 V ACC (E62-11) - GND (E62-20) GR - BR ACC power supply Ignition switch off Blow 1 V ACC (E62-11) - GND (E62-20) GR - BR ACC power supply Ignition switch ACC 11 to 14 V SNS2 (E80-1) - Body ground W-B - Body ground Ground Always Below 1 V HINT:
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the E62 and E80 receiver connectors.
- Measure the voltage of the connectors.
TERMINAL DESCRIPTION CHARTSymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition ATX+ (E62-5) - GND (E62-20) R - BR AVC-LAN communication signal Ignition switch ACC 2 to 3 V ATX- (E62-15) - GND (E62-20) G - BR AVC-LAN communication signal Ignition switch ACC 2 to 3 V MUTE (E62-7) - GND (E62-20) P - BR Mute signal Audio system is playing → changing mode Above 3.5 V → Below 1 V L+ (E62-9) - GND (E62-20) R - BR Sound signal (left) Audio system is operating Waveform synchronized with sound is output L- (E62-19) - GND (E62-20) G - BR Sound signal (left) Audio system is operating Waveform synchronized with sound is output R- (E62-18) - GND (E62-20) W - BR Sound signal (right) Audio system is operating Waveform synchronized with sound is output R+ (E62-8) - GND (E62-20) B - BR Sound signal (right) Audio system is operating Waveform synchronized with sound is output SLD (E62-10) - GND (E62-20) Shielded - BR Shielded Always Below 1 V ALI (E49-17) - GND (E62-20) B - BR Sound signal (left) External device is playing (when stereo jack is used) Waveform synchronized with sound is output ARI (E49-15) - GND (E62-20) W - BR Sound signal (right) External device is playing (when stereo jack is used) Waveform synchronized with sound is output ASGN (E49-16) - Body ground R - Body ground Ground Always Below 1 V AGND (E49-18) - Body ground Shielded - Body ground Shielded ground Always Below 1 V AUXI (E49-19) - GND (E62-20) R - BR External input connection detection signal External device is connected Below 1 V ILL+ (E62-2) - GND (E62-20) G - BR Illumination signal Light control switch TAIL or HEAD 11 to 14 V ILL- (E62-12) - GND (E62-20) BR - BR Illumination signal Light control switch TAIL or HEAD Pulse generation SW1 (E49-7) - GND (E62-20) W - BR Steering pad switch signal Steering pad switch not pushed 4 V or more SW1 (E49-7) - GND (E62-20) W - BR Steering pad switch signal Steering pad switch SEEK+ switch pushed Approx. 0.5 V SW1 (E49-7) - GND (E62-20) W - BR Steering pad switch signal Steering pad switch SEEK- switch pushed Approx. 0.9 V SW1 (E49-7) - GND (E62-20) W - BR Steering pad switch signal Steering pad switch VOL+ switch pushed Approx. 2.0 V SW1 (E49-7) - GND (E62-20) W - BR Steering pad switch signal Steering pad switch VOL-switch pushed Approx. 3.4 V SW2 (E49-8) - GND (E62-20) R - BR Steering pad switch signal Steering pad switch not pushed 4 V or more SW2 (E49-8) - GND (E62-20) R - BR Steering pad switch signal Steering pad switch MODE switch pushed Below 0.5 V SW2 (E49-8) - GND (E62-20) R - BR Steering pad switch signal Steering pad switch ON HOOK switch pushed Approx. 0.9 V SW2 (E49-8) - GND (E62-20) R - BR Steering pad switch signal Steering pad switch OFF HOOK switch pushed Approx. 2.0 V SW2 (E49-8) - GND (E62-20) R - BR Steering pad switch signal Steering pad switch VOICE switch pushed Approx. 3.4 V SWG (E49-6) - Body ground B - Body ground Steering pad switch signal ground Always Below 1 V MIN- (E80-5) - GND (E62-20) R - BR Microphone voice signal "Bluetooth" handsfree function is ON A waveform synchronized with sounds is output MIN+ (E80-2) - GND (E62-20) W - BR Microphone voice signal "Bluetooth" handsfree function is ON A waveform synchronized with sounds is output MACC (E80-3) - GND (E62-20) B - BR Microphone AMP power supply Ignition switch off -> ON Below 1 V → 5 V SGND (E80-6) - Body ground Shielded - Body ground Shielded ground Always Below 1 V SPD (E49-3) - GND (E62-20) V - BR Speed signal from combination meter Ignition switch ON, drive wheels turned slowly Pulse generation ANT (E62-13) - GND (E62-20) B - BR Power source of antenna Radio switch ON and AM or FM 11 to 14 V IVO+ (E49-11) - GND (E62-20) B - BR Voice signal "Bluetooth" handsfree voice signal is playing A waveform synchronized with sounds is output IVO- (E49-12) - GND (E62-20) W - BR Voice signal "Bluetooth" handsfree voice signal is playing A waveform synchronized with sounds is output SLD1 (E49-13) - Body ground Shielded - Body ground Shielded ground Always Below 1 V HINT:
If the result is not as specified, the receiver may have a malfunction.
- CHECK RADIO RECEIVER (for Built-in Type Amplifier System)
- Disconnect the E47 receiver connector.
- Measure the resistance and voltage of the wire harness side connector.TERMINAL DESCRIPTION CHART
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (E47-7) - Body ground BR - Body ground Ground Always Below 1 Ω B (E47-4) - GND (E47-7) L - BR Battery Always 11 to 14 V ACC (E47-3) - GND (E47-7) GR - BR ACC power supply Ignition switch off Below 1 V ACC (E47-3) - GND (E47-7) GR - BR ACC power supply Ignition switch ACC 11 to 14 V HINT:
If the results is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the E47 receiver connector.
- Measure the voltage of the connectors.
TERMINAL DESCRIPTION CHARTSymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition FL+ (E47-2) - GND (E47-7) P - BR Sounds signal (front left) Audio system is operating Waveform synchronized with sound is output FL- (E47-6) - GND (E47-7) V - BR Sounds signal (front left) Audio system is operating Waveform synchronized with sound is output FR+ (E47-1) - GND (E47-7) LG - BR Sounds signal (front right) Audio system is operating Waveform synchronized with sound is output FR- (E47-5) - GND (E47-7) L - BR Sounds signal (front right) Audio system is operating Waveform synchronized with sound is output RL+ (E48-2) - GND (E47-7) B - BR Sounds signal (rear left) Audio system is operating Waveform synchronized with sound is output RL- (E48-6) - GND (E47-7) Y - BR Sounds signal (rear left) Audio system is operating Waveform synchronized with sound is output RR+ (E48-1) - GND (E47-7) R - BR Sounds signal (rear right) Audio system is operating Waveform synchronized with sound is output RR- (E48-3) - GND (E47-7) W - BR Sounds signal (rear left) Audio system is operating Waveform synchronized with sound is output SPD (E49-3) - GND (E47-7) V - BR Speed signal Ignition switch ON Drive wheels are turned slowly Pulse generation ALI (E49-17) - GND (E47-7) B - BR Sound signal (left) External device is playing (when stereo jack is used) Waveform synchronized with sound is output ARI (E49-15) - GND (E47-7) W - BR Sound signal (right) External device is playing (when stereo jack is used) Waveform synchronized with sound is output ASGN (E49-16) - Body ground R - Body ground Ground Always Below 1 V AGND (E49-18) - Body ground Shielded - Body ground Shielded ground Always Below 1 V AUXI (E49-19) - GND (E47-7) R - BR External input connection detection signal External device is connected Below 1 V ILL+ (E47-10) - GND (E47-7) G - BR Illumination signal Light control switch TAIL or HEAD 11 to 14 V ILL- (E48-5) - GND (E47-7) BR - BR Illumination signal Light control switch TAIL or HEAD Pulse generation SW1 (E49-7)* - GND (E47-7) W - BR Steering pad switch signal Steering pad switch not pushed 4 V or more SW1 (E49-7)* - GND (E47-7) W - BR Steering pad switch signal Steering pad switch SEEK+ switch pushed Approx. 0.5 V SW1 (E49-7)* - GND (E47-7) W - BR Steering pad switch signal Steering pad switch SEEK- switch pushed Approx. 0.9 V SW1 (E49-7)* - GND (E47-7) W - BR Steering pad switch signal Steering pad switch VOL+ switch pushed Approx. 2.0 V SW1 (E49-7)* - GND (E47-7) W - BR Steering pad switch signal Steering pad switch VOL-switch pushed Approx. 3.4 V SW2 (E49-8)* - GND (E47-7) R - BR Steering pad switch signal Steering pad switch not pushed 4 V or more SW2 (E49-8)* - GND (E47-7) R - BR Steering pad switch signal Steering pad switch MODE switch pushed Below 0.5 V SWG (E49-6)* - Body ground B - Body ground Steering pad switch signal ground Always Below 1 V ANT (E47-8) - GND (E47-7) B - BR Power source of antenna Radio switch ON and AM or FM 11 to 14 V HINT:
*: with CD Changer
If the result is not as specified, the receiver may have a malfunction. - CHECK STEREO COMPONENT AMPLIFIER (for Separate Type Amplifier System)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the L13, L14 and L15 amplifier connectors.
- Measure the resistance and voltage of the wire harness side connectors.TERMINAL DESCRIPTION CHART
Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition +B (L15-1) - Body ground L - Body ground Battery Always 11 to 14 V +B2 (L15-5) - Body ground L - Body ground Battery Always 11 to 14 V ACC (L13-12) - Body ground GR - Body ground ACC power supply Ignition switch ACC 11 to 14 V GND (L14-6) - Body ground W-B - Body ground Ground Always Below 1 Ω GND2 (L14-7) - Body ground W-B - Body ground Ground Always Below 1 Ω HINT:
If the results is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the L13, L14 and L15 amplifier connectors.
- Measure the voltage of the connectors.
TERMINAL DESCRIPTION CHARTSymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition TX+ (L13-8) - GND (L14-6) R - W-B AVC-LAN communication signal Ignition switch ACC 2 to 3 V TX- (L13-7) - GND (L14-6) G - W-B AVC-LAN communication signal Ignition switch ACC 2 to 3 V MUTE (L13-1) - GND (L14-6) P - W-B Mute signal Audio system playing → changing mode Above 3.5 V → Below 1 V L+ (L13-3) - GND (L14-6) R - W-B Sound signal (left) Audio system is operating Waveform synchronized with sound is output L- (L13-2) - GND (L14-6) G - W-B Sound signal (left) Audio system is operating Waveform synchronized with sound is output R- (L13-4) - GND (L14-6) W - W-B Sound signal (right) Audio system is operating Waveform synchronized with sound is output R+ (L13-5) - GND (L14-6) B - W-B Sound signal (right) Audio system is operating Waveform synchronized with sound is output FR- (L14-3) - GND (L14-6) L - W-B Sound signal (front right) Audio system is operating Waveform synchronized with sound is output FR+ (L14-9) - GND (L14-6) LG - W-B Sound signal (front right) Audio system is operating Waveform synchronized with sound is output FR- (L15-6) - GND (L14-6) L - W-B Sound signal (front right) Audio system is operating Waveform synchronized with sound is output FR+ (L15-2) - GND (L14-6) LG - W-B Sound signal (front right) Audio system is operating Waveform synchronized with sound is output FL- (L14-1) - GND (L14-6) V - W-B Sound signal (front left) Audio system is operating Waveform synchronized with sound is output FL+ (L14-2) - GND (L14-6) P - W-B Sound signal (front left) Audio system is operating Waveform synchronized with sound is output FL- (L15-7) - GND (L14-6) V - W-B Sound signal (front left) Audio system is operating Waveform synchronized with sound is output FL+ (L15-8) - GND (L14-6) P - W-B Sound signal (front left) Audio system is operating Waveform synchronized with sound is output RL+ (L15-3) - GND (L14-6) B - W-B Sound signal (rear left) Audio system is operating Waveform synchronized with sound is output RL- (L15-9) - GND (L14-6) Y - W-B Sound signal (rear left) Audio system is operating Waveform synchronized with sound is output RR+ (L15-10) - GND (L14-6) R - W-B Sound signal (rear right) Audio system is operating Waveform synchronized with sound is output RR- (L15-4) - GND (L14-6) W - W-B Sound signal (rear right) Audio system is operating Waveform synchronized with sound is output WFL+ (L14-5) - GND (L14-6) B - W-B Sound signal (woofer) Audio system is operating Waveform synchronized with sound is output WFL- (L14-12) - GND (L14-6) G - W-B Sound signal (woofer) Audio system is operating Waveform synchronized with sound is output WFR- (L14-10) - GND (L14-6) V - W-B Sound signal (woofer) Audio system is operating Waveform synchronized with sound is output WFR+ (L14-4) - GND (L14-6) P - W-B Sound signal (woofer) Audio system is operating Waveform synchronized with sound is output SPD (L13-11) - GND (L14-6) V - W-B Speed signal Ignition switch ON Drive wheels are turned slowly Pulse generation INT+ (L13-23) - GND (L14-6) B - W-B Voice signal "Bluetooth" handsfree voice signal is playing A waveform synchronized with sounds is output INT- (L13-22) - GND (L14-6) W - W-B Voice signal "Bluetooth" handsfree voice signal is playing A waveform synchronized with sounds is output HINT.
If the result is not as specified, the amplifier may have a malfunction.