Terminals Of Ecu
- CHECK RADIO RECEIVER
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the E41 receiver connector.
- Measure the resistance and voltage of the wire harness side connector.
Standard:
ECU TERMINALS VOLTAGE SPECIFICATIONSymbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (E41-7) - Body ground BR - Body ground Ground Always Below 1 Ω B (E41-4) - GND (E41-7) L-Y - BR Battery Always 11 to 14 V ACC (E41-3) - GND (E41-7) GR-BR ACC power supply Ignition switch OFF Below 1 V Ignition switch ACC 11 to 14 V HINT:
If the results are not as specified, there may be a malfunction in the wire harness.
- Reconnect the E41 receiver connector.
- Measure the voltage of the connector.
Standard voltage:
ECU TERMINALS VOLTAGE SPECIFICATIONSymbols (Terminal No.) Wiring Color Terminal Description Condition Specification ILL+ (E41-10) - GND (E41-7) G-BR Illumination signal Light control switch OFF Below 1 V Light control switch TAIL 11 to 14 V ILL- (E42-5) - GND (E41-7) BR-W - BR Illumination signal Light control switch OFF Below 1 V Light control switch TAIL 11 to 14 V FR+ (E41-1) - GND (E41-7) LG-BR Sound signal (Front right) Audio system is playing A waveform synchronized with sound is output FR- (E41-5) - GND (E41-7) L-BR Sound signal (Front right) Audio system is playing A waveform synchronized with sound is output FL+ (E41-2) - GND (E41-7) P-BR Sound signal (Front left) Audio system is playing A waveform synchronized with sound is output FL- (E41-6) - GND (E41-7) V-BR Sound signal (Front left) Audio system is playing A waveform synchronized with sound is output RR+ (E42-1) - GND (E41-7) R-BR Sound signal (Rear right) Audio system is playing A waveform synchronized with sound is output RR- (E42-3) - GND (E41-7) W-BR Sound signal (Rear right) Audio system is playing A waveform synchronized with sound is output RL+ (E42-2) - GND (E41-7) B-BR Sound signal (Rear left) Audio system is playing A waveform synchronized with sound is output RL- (E42-6) - GND (E41-7) Y-BR Sound signal (Rear left) Audio system is playing A waveform synchronized with sound is output AMP (E41-9) - GND (E41-7) (1) P-L - BR Woofer speaker signal Woofer speaker switch OFF Below 1 V Woofer speaker switch ON 11 to 14 V SWG (E43-6) - GND (E41-7) W-R - BR Steering pad switch ground Always Below 1 V SW1 (E43-7) - GND (E41-7) V-W - BR Steering pad switch signal Steering pad switch not operated 4 V or more SEEK+ switch pushed Approximately 0.5 V SEEK- switch pushed Approximately 0.9 V VOL+ switch pushed Approximately 2.0 V VOL- switch pushed Approximately 3.4 V SW2 (E43-8) - GND (E41-7) Y-B - BR Steering pad switch signal Steering pad switch not operated 4 V or more MODE switch pushed Approximately 0.5 V ON HOOK switch pushed Approximately 0.9 V OFF HOOK switch pushed Approximately 2.0 V VOICE switch pushed Approximately 3.4 V ARI (E43-15) - GND (E41-7) P-BR Sound signal (Right) External device is playing (When stereo jack adapter is used) A waveform synchronized with sound is output ASGN (E43-16) - GND (E41-7) (Shielded) - BR Ground (Shielded) Always Below 1 V ALI (E43-17) - GND (E41-7) L-BR Sound signal (Left) External device is playing (When stereo jack adapter is used) A waveform synchronized with sound is output AUXI (E43-19) - GND (E41-7) P-G - BR External device connection detection signal External device is connected Below 1 V (1) w/ Woofer Speaker HINT:
If the results are not as specified, there may be a malfunction in the wire harness.