Audio Visual Telematics. Corolla. Zre142 Aze141
Audio Video. Corolla. Zre142 Aze141
Audio And Visual System (W/ Multi-Display Without Dvd Player) -- Terminals Of Ecu |
RADIO AND DISPLAY RECEIVER ASSEMBLY |

Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specification |
E126-1 (FR+) - E126-7 (E) | LG - BR | Sound signal (Front Right) | Audio system playing | A waveform synchronized with sounds is output |
E126-2 (FL+) - E126-7 (E) | P - BR | Sound signal (Front Left) | Audio system playing | A waveform synchronized with sounds is output |
E126-3 (ACC) - E126-7 (E) | GR - BR | Power source (ACC) | Ignition switch off | Below 1 V |
Ignition switch ACC | 11 to 14 V | |||
E126-4 (B) - E126-7 (E) | SB - BR | Power source (+B) | Always | 11 to 14 V |
E126-5 (FR-) - E126-7 (E) | L - BR | Sound signal (Front Right) | Audio system playing | A waveform synchronized with sounds is output |
E126-6 (FL-) - E126-7 (E) | V - BR | Sound signal (Front Left) | Audio system playing | A waveform synchronized with sounds is output |
E126-7 (E) - Body ground | BR - Body ground | Ground | Always | Below 1 V |
E126-10 (ILL+) - E126-7 (E) | G - BR | Illumination signal | Light control switch off | Below 1 V |
Light control switch in tail or head position | 11 to 14 V | |||
E127-1 (RR+) - E126-7 (E) | R - BR | Sound signal (Rear Right) | Audio system playing | A waveform synchronized with sounds is output |
E127-2 (RL+) - E126-7 (E) | B - BR | Sound signal (Rear Left) | Audio system playing | A waveform synchronized with sounds is output |
E127-3 (RR-) - E126-7 (E) | W - BR | Sound signal (Rear Right) | Audio system playing | A waveform synchronized with sounds is output |
E127-5 (ILL-) - E126-7 (E) | W - BR | Illumination signal | Light control switch off | Below 1 V |
Light control switch in tail or head position | Pulse generation | |||
E127-6 (RL-) - E126-7 (E) | Y - BR | Sound signal (Rear Left) | Audio system playing | A waveform synchronized with sounds is output |
E129-2 (REV) - E126-7 (E) | R - BR | Reverse signal | See "Vehicle Signal Check Mode" in Operation Check (COROLLA_ZRE142 RM000003SKF0ARX.html) | - |
E129-4 (MACC) - E126-7 (E) | R - BR | Microphone power supply | Ignition switch off | Below 1 V |
Ignition switch ACC | 4 to 6 V | |||
E129-5 (MIC+) - E126-7 (E) | B - BR | Microphone voice signal | See "Microphone & Voice Recognition Check" in Operation Check (COROLLA_ZRE142 RM000003SKF0ARX.html) | - |
E129-6 (SNS2) - E126-7 (E) | Y - BR | Microphone connection detection signal | Always | Below 1 V |
E129-11 (AGND) - Body ground | Shield - Body ground | Shield ground | Always | Below 1 V |
E129-17 (SPD) - E126-7 (E) | V - BR | Vehicle speed signal | See "Vehicle Signal Check Mode" in Operation Check (COROLLA_ZRE142 RM000003SKF0ARX.html) | - |
E129-18 (SGND) - Body ground | Shield - Body ground | Shield ground | Always | Below 1 V |
E129-19 (MIC-) - E126-7 (E) | W - BR | Microphone voice signal | See "Microphone & Voice Recognition Check" in Operation Check (COROLLA_ZRE142 RM000003SKF0ARX.html) | - |
E129-21 (SW1) - E129-23 (SWG) | W - B*2 BE - SB*3 | Steering pad switch signal | No switch pushed | 2.97 to 3.56 V |
Seek+ switch pushed | 0.27 to 0.35 V | |||
Seek- switch pushed | 0.86 to 1.03 V | |||
Volume+ switch pushed | 1.51 to 1.79 V | |||
Volume- switch pushed | 2.22 to 2.66 V | |||
E129-22 (SW2) - E129-23 (SWG) | P - B*2 P - SB*3 | Steering pad switch signal | No switch pushed | 2.97 to 3.56 V |
MODE switch pushed | 0.27 to 0.35 V | |||
On hook switch pushed*1 | 0.86 to 1.03 V | |||
Off hook switch pushed*1 | 1.51 to 1.79 V | |||
Voice switch pushed*1 | 2.22 to 2.66 V | |||
E129-23 (SWG) - E126-7 (E) | B - BR*2 SB - BR*3 | Steering pad switch ground | Always | Below 1 V |
E129-25 (AUXI) - E126-7 (E) | L - BR | External device connection detection signal | External device connected | Below 1 V |
External device not connected | 2.1 to 3 V | |||
E129-26 (ARI) - E129-27 (ASGN) | B - R | Sound signal (Right) | External device playing (When stereo jack used) | A waveform synchronized with sounds is output |
E129-27 (ASGN) - E126-7 (E) | R - BR | Ground | Always | Below 1 V |
E129-28 (ALI) - E129-27 (ASGN) | W - R | Sound signal (Left) | External device playing (When stereo jack used) | A waveform synchronized with sounds is output |
E128-6 (PKB) - E126-7 (E) | B - BR*2 BE - BR*3 | Parking brake signal | See "Vehicle Signal Check Mode" in Operation Check (COROLLA_ZRE142 RM000003SKF0ARX.html) | - |
E130-1 (USV1) | - | Power source | - | - |
E130-2 (US1-) | - | Data signal | - | - |
E130-3 (US1+) | - | Data signal | - | - |
E130-4 (UGD1) | - | Ground | - | - |
E130-5 (USG1) | - | Shield ground | - | - |
RA-5 (ANT+) - E126-7 (E) | - - BR | Power source of antenna | Ignition switch ACC Radio switch on and FM or AM selected | 11 to 14 V |
- *1: w/ Steering Pad Switch Assembly
- *2: for TMC Made
- *3: except TMC Made