TERMINALS OF ECU
1. AIR CONDITIONING AMPLIFIER
(a) Measure the voltage and resistance according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
F87-9 (ROUT) - Body ground |
LG - Body ground |
Output climate control signal (Front passenger side) |
Engine switch on (IG) Refreshing seat switch RH blower side level 3 |
Pulse generation (see waveform 1) |
|
F87-10 (LOUT) - Body ground |
L - Body ground |
Output climate control signal (Driver side) |
Engine switch on (IG) Refreshing seat switch LH blower side level 3 |
Pulse generation (see waveform 1) |
|
F87-15 (SW 5) - Body ground |
W - Body ground |
Input climate control signal (Front passenger side) |
Engine switch on (IG) Refreshing seat switch RH level 0 |
4.5 to 5.5 V |
|
Engine switch on (IG) Refreshing seat switch RH blower side level 3 |
Below 1 V |
|||
|
F87-16 (SW 4) - Body ground |
V - Body ground |
Input climate control signal (Driver side) |
Engine switch on (IG) Refreshing seat switch LH level 0 |
4.5 to 5.5 V |
|
Engine switch on (IG) Refreshing seat switch LH blower side level 3 |
Below 1 V |
|||
|
F42-31 (S5-4) - Body ground |
V - Body ground |
Power supply |
Engine switch on (IG) |
4.5 to 5.5 V |
|
F42-35 (SG-4) - Body ground |
SB - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, the air conditioning amplifier may have a malfunction.
(1) Using an oscilloscope, check waveform 1.
Waveform 1 (Reference)
|
Item |
Content |
|---|---|
|
Terminal No. (Symbol) |
F87-9 (ROUT) - Body ground F87-10 (LOUT) - Body ground |
|
Tool Setting |
2 V/DIV., 500 μsec/DIV. |
|
Condition |
Engine switch on (IG) Refreshing seat switch blower side level 3 |
On-vehicle InspectionCD Sound Skips
CAUTION / NOTICE / HINT
NOTICE:
After replacing the navigation receiver assembly of vehicles subscribed to pay-type
satellite radio broadcasts, XM radio ID registration is necessary.
PROCEDURE
1.
CHECK DISC
(a) ...
Dcm Operation History
DCM OPERATION HISTORY
1. DCM OPERATION HISTORY
This function shows the telematics network status when the DCM (Telematics Transceiver)
was operated. Use this function when no DTC is stored but the telematics system
is unable to connect to the call center ...