TERMINALS OF ECU
1. CHECK DCM (TELEMATICS TRANSCEIVER)
Text in Illustration
|
*a |
Connector color: Blue (to Telephone antenna) |
*b |
Connector color: Gray (to GPS antenna) |
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
F39-1 (+B) - F39-4 (E) |
P - W-B |
Vehicle battery power supply |
Always |
11 to 14 V |
|
F39-2 (SPI+) - F39-4 (E) |
V - W-B |
Sound signal |
Audio system playing |
Waveform synchronized with sound is input |
|
F39-3 (SPI-) - F39-4 (E) |
P - W-B |
Sound signal |
Audio system playing |
Waveform synchronized with sound is input |
|
F39-4 (E) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 V |
|
F39-5 (SPO+) - F39-4 (E) |
LG - W-B |
Sound signal |
Audio system playing, or emergency call mode on |
Waveform synchronized with sound is output |
|
F39-6 (SPO-) - F39-4 (E) |
L - W-B |
Sound signal |
Audio system playing, or emergency call mode on |
Waveform synchronized with sound is output |
|
F39-7 (IG2) - F39-4 (E) |
W - W-B |
IG power supply |
Ignition switch ON |
11 to 14 V |
|
Ignition switch off |
Below 1 V |
|||
|
F39-8 (ACC) - F39-4 (E) |
P - W-B |
ACC power supply |
Ignition switch ACC |
11 to 14 V |
|
Ignition switch off |
Below 1 V |
|||
|
F39-10 (SPDP) - F39-4 (E) |
SB - W-B |
Vehicle speed signal |
See "Vehicle Signal Check Mode" (See page
|
- |
|
F39-11 (IND1) - F39-4 (E) |
R - W-B |
Manual (SOS) switch red indicator illumination signal |
Illuminates for 2 seconds after turning the ignition switch ON |
1 to 8.5 V |
|
Ignition switch off |
Below 1 V |
|||
|
F39-12 (IND2) - F39-4 (E) |
V - W-B |
Manual (SOS) switch green indicator illumination signal |
Illuminates for 2 seconds after turning the ignition switch ON |
1 to 8.5 V |
|
Ignition switch off |
Below 1 V |
|||
|
F39-13 (BBI-) |
G |
BUB (Back-Up Battery) power supply |
- |
- |
|
F39-17 (MUTE) - F39-4 (E) |
L - W-B |
Mute signal |
Audio system playing |
3.5 V or higher |
|
Emergency call mode on |
Below 1 V |
|||
|
F39-18 (MCO+) - F39-4 (E) |
B - W-B |
Microphone voice signal |
See "Microphone & Voice Recognition Check" (See page
|
- |
|
F39-19 (MCO-) - F39-4 (E) |
W - W-B |
Microphone voice signal |
See "Microphone & Voice Recognition Check" (See page
|
- |
|
F39-20 (CTR1) |
L |
BUB (Back-Up Battery) control line |
- |
- |
|
F39-21 (CTR2) |
GR |
BUB (Back-Up Battery) control line |
- |
- |
|
F39-23 (ILL+) - F39-4 (E) |
G - W-B |
Illumination signal |
Light control switch off |
Below 1 V |
|
Light control switch tail or on |
11 to 14 V |
|||
|
F39-24 (GSW) - F39-4 (E) |
B - W-B |
Collision detection signal |
Ignition switch ON |
Pulse generation (See waveform 1) |
|
F39-25 (SIL) |
G |
Serial communication signal |
- |
- |
|
F39-26 (SIG-) - F39-4 (E) |
LG - W-B |
Ground |
Always |
Below 1 V |
|
F39-27 (SIG1) - F39-4 (E) |
P - W-B |
Manual (SOS) switch condition signal |
Manual (SOS) switch not pressed |
1.4 to 1.8 V |
|
Manual (SOS) switch pressed |
0.5 to 0.9 V |
|||
|
F39-30 (BBI+) |
LG |
BUB (Back-Up Battery) power supply |
- |
- |
|
F39-32 (SGND) - F39-4 (E) |
Shielded - W-B |
Shield ground |
Always |
Below 1 V |
|
F39-33 (MCVD) - F39-4 (E) |
R - W-B |
Telephone microphone assembly power supply |
Ignition switch off |
Below 1 V |
|
Ignition switch ON |
4 to 6 V |
|||
|
F39-34 (MCI+) - F39-4 (E) |
B - W-B |
Microphone voice signal |
See "Microphone & Voice Recognition Check" (See page
|
- |
|
F39-35 (MCI-) - F39-4 (E) |
W - W-B |
Microphone voice signal |
See "Microphone & Voice Recognition Check" (See page
|
- |
(a) Oscilloscope waveform:
(1) Waveform 1
|
Item |
Condition |
|---|---|
|
Tester connection |
F39-24 (GSW) - F39-4 (E) |
|
Tool setting |
5.0 V/DIV., 20 ms/DIV. |
|
Vehicle condition |
Ignition switch ON |
Problem Symptoms Table
Diagnosis SystemAlarm
The system sounds the alarm and flashes the lights when forced entry is
detected.
Triggering of the alarm
The alarm is triggered in the following situations when the alarm is set:
• A locked door is unlocked or opened in any way other than using the ...
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-)
battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems ne ...