TERMINALS OF ECU
1. AIR CONDITIONING AMPLIFIER ASSEMBLY
HINT:
Check from the rear of the connector while it is connected to the air conditioning amplifier assembly.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
A14-1 (IG+) - A14-12 (GND) |
P - W-B |
Power source (IG) |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
|||
A14-2 (BLRH) - A14-12 (GND) |
SB - W-B |
Blower switch signal |
|
Below 1 V |
|
11 to 14 V |
|||
A14-3 (MC) - A14-12 (GND) |
BE - W-B |
Air mix select switch signal |
|
1 to 14 V |
|
Below 1 V |
|||
A14-4 (LOCK) - A14-12 (GND) |
G - W-B |
A/C lock sensor signal |
|
Pulse generation (See waveform 1) |
A14-5 (PRE) - A14-12 (GND) |
V - W-B |
Air conditioner pressure sensor signal |
|
4.71 V or higher |
|
Below 0.74 V |
|||
|
0.74 to 4.71 V |
|||
A14-6 (TE) - A14-32 (SG-2) |
B - GR |
Evaporator temperature sensor signal |
|
1.7 to 2.1 V |
|
0.9 to 1.3 V |
|||
A14-7 (TAM) - A14-33 (SG-1) |
W - LG |
Ambient temperature sensor signal |
|
1.35 to 1.75 V |
|
0.9 to 1.2 V |
|||
A14-8 (S5-1) - A14-12 (GND) |
SB - W-B |
Power supply for air conditioner pressure sensor |
Ignition switch off |
Below 1 V |
Ignition switch ON |
4.5 to 5.5 V |
|||
A14-9 (ACT) - A14-12 (GND) |
R - W-B |
Compressor operation signal |
|
Below 1 V |
|
4.75 to 5.25 V |
|||
A14-10 (CANH) |
L |
CAN communication system |
- |
- |
A14-11 (CANL) |
W |
CAN communication system |
- |
- |
A14-12 (GND) - Body ground |
W-B - Body ground |
Ground for main power supply |
Always |
Below 1 Ω |
A14-13 (PTC3) - A14-12 (GND)*1 |
P - W-B |
Quick heater operation signal |
|
11 to 14 V |
|
Below 1 V |
|||
A14-14 (PTC2) - A14-12 (GND)*1 |
W - W-B |
Quick heater operation signal |
|
11 to 14 V |
|
Below 1 V |
|||
A14-15 (PTC1) - A14-12 (GND)*1 |
V - W-B |
Quick heater operation signal |
|
11 to 14 V |
|
Below 1 V |
|||
A14-18 (MGC) - A14-12 (GND) |
G - W-B |
Magnetic clutch operation signal |
|
11 to 14 V |
|
Below 1 V |
|||
A14-20 (REC) - A14-12 (GND) |
R - W-B |
Recirculation/Fresh switch signal |
|
11 to 14 V (Servo motor operating) |
A14-21 (B) - A14-12 (GND) |
LG - W-B |
Power source (Back-up) |
Always |
11 to 14 V |
A14-22 (DEF) - A14-12 (GND) |
R - W-B |
Mode switch signal |
|
1 to 14 V |
|
Below 1 V |
|||
A14-26 (MR/F) - A14-12 (GND) |
SB - W-B |
REC switch operation signal |
|
4 to 5 V |
|
Below 1 V |
|||
A14-27 (A/C) - A14-12 (GND) |
GR - W-B |
A/C switch operation signal |
|
4 to 5 V |
|
Below 1 V |
|||
A14-32 (SG-2) - Body ground |
GR - Body ground |
Ground for evaporator temperature sensor |
Always |
Below 1 Ω |
A14-33 (SG-1) - Body ground |
LG - Body ground |
Ground for air conditioner pressure sensor, ambient temperature sensor, A/C lock sensor |
Always |
Below 1 Ω |
A14-35 (ACID) - A14-12 (GND) |
B - W-B |
A/C switch LED signal |
|
11 to 14 V |
|
Below 3 V |
|||
A14-37 (AC1) - A14-12 (GND) |
BE - W-B |
Compressor operation signal |
|
11 to 14 V |
|
Below 1 V |
|||
A14-40 (FRS) - A14-12 (GND) |
V - W-B |
Recirculation/Fresh switch signal |
|
11 to 14 V Servo motor operating) |
(a) Waveform 1:
Item |
Content |
---|---|
Terminal No. |
A14-4 (LOCK) - A14-12 (GND) |
Tool Setting |
200 mV/DIV., 10 ms./DIV. |
Vehicle Condition |
|
2. ECM (2TR-FE) (See page
)
3. ECM (2GR-FKS) (See page
)
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL RADIATOR GRILLE MOULDING
(a) Engage the 8 claws to install the radiator grille moulding.
(b) Install the 8 screws.
2. INSTALL NO. 1 RADIATOR GRILLE GARNISH
(a) for Type A and Type B:
(1) Engag ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL UPPER RADIATOR TANK
(a) Install a new upper radiator tank.
Text in Illustration
*1
Upper Radiator Tank
*2
Core Plate
*a
Correc ...
Front Camera Module Incorrect Axial Gap (C1AA8,C1AA9)
DESCRIPTION
If the forward recognition camera detects that the forward recognition camera
axis has deviated, DTC C1AA8 is stored. Also, if Forward Recognition Camera Axis
Adjustment is not performed after installing the forward recognition camera, DTC
C1AA9 is stored.
DTC No.
...