CHECK AT ECU TERMINAL



ETACS-ECU




note C-218 (terminal numbers 1 to 20) cannot be measured as the ETACS-ECU is mounted on the junction block directly. The values are for reference only.

CONNECTOR: C-218
Terminal No.
Check item
Check condition
Normal condition
1
Power supply to the central door locking system (battery positive voltage)
Always
System voltage
2
Earth (for ECU)
Always
0 V
3
Output to left turn-signal lamps
When the left turn-signal lamps are on
System voltage
4
Output to right turn-signal lamps
When the right turn-signal lamps are on
System voltage
5
Power supply to hazard warning lamp (battery positive voltage)
Always
System voltage
6
Input of windshield wiper automatic stop signal
When windshield wipers are operating
System voltage
7
Output to windshield wiper (high-speed operation)
When windshield wipers are operating at high speed
System voltage
8
Output to windshield wiper (low speed operation)
When windshield wipers are operating at low speed
System voltage
9
Output to windshield washer
When windshield washer is operating
System voltage
10
Power supply to windshield wiper/washer (ignition switch: ACC)
Ignition switch: ACC
System voltage
11 - 14
-
-
-
15
Output to tail lamps
When the tail lamps are on
System voltage
16
Battery power supply (for tail lamps)
Always
System voltage
17
Output to low-beam headlamps
When low-beam headlamps are on
2 V or less
18
Output to room lamp
When the room lamp is on
2 V or less
19
Output to high-beam headlamps
When high-beam headlamps are on
2 V or less
20
Battery power supply (for ECU)
Always
System voltage

CONNECTOR: C-220
Terminal No.
Check item
Check condition
Normal condition
21
Output to central door locking (for unlocking the driver’s door)
When the door lock actuators unlock the driver’s door
System voltage
22
Output to central door locking (for unlocking the doors)
When the door lock actuators unlock the doors
System voltage
23
Output to central door locking (for locking the doors)
When the door lock actuators lock the doors
System voltage
24 - 35
-
-
-
36
Input to front door lock actuator (RH) (lock switch)
Driver’s door lock: locked
0 V
37 - 40
-
-
-
41
Input to front door lock actuator (unlock switch)
Driver’s door lock: Unlocked
0 V
42, 43
-
-
-
44
Power supply from ignition switch (IG2)
Ignition switch: ON
System voltage

CONNECTOR: C-219
Terminal No.
Check item
Check condition
Normal condition
51
Input from driver’s door switch
Driver’s door switch: ON (door open)
0 V
52
-
-
-
53
Input to key reminder switch
Key reminder switch: ON (ignition key removed)
0 V
54
LIN communication line
Always
0 to 12 V (pulse signal)
55
Output to door ajar indicator
Door ajar indicator is illuminated
System voltage
56 - 58
-
-
-
59
Output to the power window relay
When the power windows are operative
System voltage
60
Input seat belt switch (RH) <L.H. drive vehicles> or seat belt switch (LH) <R.H. drive vehicles>
When the seat belt is removed.
0 V
61
Input from the rear door switches
One of the rear door switches: ON (door open)
0 V
62
-
-
-
63
Input from the front passenger’s door switch
One of the front passenger’s door switch: ON (door open)
0 V
64
Back-up input from windshield wiper switch
Windshield low-speed wiper switch or windshield high-speed wiper switch: ON
0 V
65
-
-
-
66
Input seat belt switch (LH) <L.H. drive vehicles> or seat belt switch (RH) <R.H. drive vehicles>
When the seat belt is removed.
0 V
67
-
-
-
68
Power supply from ignition switch (IG1)
Ignition switch: ON or START
System voltage
69
-
-
-
70
Earth (for sensor)
Always
0 V
71
Input from hazard warning lamp switch
Hazard warning lamp switch: ON
0 V
72
-
-
-
73
Output to seat belt indicator
Seat belt indicator is illuminated
System voltage
74
Power supply from ignition switch (ACC)
Ignition switch: ON or ACC
System voltage