CHECK AT ECU TERMINAL





note B-304 (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: B-304


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
1 V or less
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 (electric motor switch: ACC)
Electric motor switch: ACC
System voltage
11
Power supply to rear wiper (electric motor switch: ACC)
Electric motor switch: ACC
System voltage
12
Output to rear washer
When rear washer is operating
System voltage
13
Output to rear wiper
When rear wiper is operating
System voltage
14
Input of rear wiper automatic stop signal
When rear wiper is operating
System voltage
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
System voltage
18
Output to room lamp
When the room lamp is on
Pulse signal
19
Output to high-beam headlamps
When high-beam headlamps are on
System voltage
20
Battery power supply (for ECU)
Always
System voltage

CONNECTOR: B-318


Terminal No.
Check item
Check condition
Normal condition
21
Output to tailgate open actuator
When the tailgate open actuator is operative
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 - 26
-
-
-
27
Input from remote controlled mirror switch (fold switch)
Remote controlled mirror switch (fold switch): ON
1 V or less
28, 29
-
-
-
30
Output to electric retractable remote controlled mirror (unfold)
When the door mirrors are unfolding

System voltage
31 ~ 35
-
-
-
36
Input to front door lock actuator (RH) (lock switch)
Driver’s door lock: locked
1 V or less
37 ~ 39
-
-
-
40
Output to electric retractable remote controlled mirror (fold)
When the door mirrors are folding
System voltage
41
Input to front door lock actuator (unlock switch)
Driver’s door lock: Unlocked
1 V or less
42
-
-
-
43
Output to the rear window defogger relay
When the rear window defogger are operative
System voltage
44
Power supply from electric motor switch (IG2)
Electric motor switch: ON
System voltage

CONNECTOR: B-317


Terminal No.
Check item
Check condition
Normal condition
51
Input from driver’s door switch
Driver’s door switch: ON (door open)
1 V or less
52
-
-
-
53
Input to key reminder switch
Key reminder switch: ON (Electric motor key removed)
1 V or less
54
LIN communication line
Always
0 to 12 V (pulse signal)
55, 56
-
-
-
57
Output of key ring antenna signal
Always
1V or less
58
Input of key ring antenna signal
Always
1V or less
59
Output to the power window relay
When the power windows are operative
System voltage
60
Input from seat belt switch (passenger’s side)
Seat belt switch (passenger’s side): ON
1 V or less
61
Input from the rear door switches or tailgate switch

  • One of the rear door switches: ON (door open)
  • Tailgate switch: ON (tailgate open)

1 V or less
62
-
-
-
63
Input from the front passenger’s door switch
One of the front passenger’s door switch: ON (door open)
1 V or less
64
Back-up input from windshield wiper switch
Windshield low-speed wiper switch or windshield high-speed wiper switch: ON
1 V or less
65
-
-
-
66
Input from seat belt switch (driver’s side)
Seat belt switch (driver’s side): ON
1 V or less
67
-
-
-
68
Power supply from electric motor switch (IG1)
Electric motor switch: ON or START
System voltage
69
Input to tailgate lock release handle
Tailgate lock release handle: ON
1 V or less
70
Earth (for sensor)
Always
1 V or less
71
Input from hazard warning lamp switch
Hazard warning lamp switch: ON
1 V or less
72
Input from rear window defogger switch
Rear window defogger switch: ON
1 V or less
73
Output to windshield intermittent wiper volume
Turn the electric motor switch to the ACC or ON position, and move the wiper volume from "Fast" to "Slow."
0 to 2.5 V
74
Power supply from electric motor switch (ACC)
Electric motor switch: ON or ACC
System voltage





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