| Last Modified: 11-27-2007 | 1.6 U | |
| Service Category: Steering | Section: Steering Column | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000000XO300IX |
| Title: VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: TERMINALS OF ECU (2008 LX570) | ||
TERMINALS OF ECU
1. CHECK STEERING CONTROL ECU
HINT:
Inspect the connectors from the back side while they are connected.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
E82-3 (IG) - E82-7 (PGND) |
G - W-B |
Power supply (ECU-IG No. 4 fuse) |
Engine switch on (IG) |
11 to 14 V |
|
E82-7 (PGND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
E82-8 (PIG) - E82-7 (PGND) |
B - W-B |
Power supply (VGRS fuse) |
Always |
11 to 14 V |
|
E82-10 (+B1) - E82-7 (PGND) |
R - W-B |
Power supply (ECU-B1 fuse) |
Always |
11 to 14 V |
|
E83-1 (BMV) - E82-7 (PGND) |
W - W-B |
Steering actuator motor signal (V phase) |
Engine running |
Sine wave |
|
E83-2 (BMU) - E82-7 (PGND) |
B - W-B |
Steering actuator motor signal (U phase) |
Engine running |
Sine wave |
|
E83-3 (BMW) - E82-7 (PGND) |
R - W-B |
Steering actuator motor signal (W phase) |
Engine running |
Sine wave |
|
E83-6 (SG) - E83-8 (PGD2) |
BR - W-B |
Steering actuator motor signal shielded ground |
Always |
Below 1 Ω |
|
E83-8 (PGD2) - Body ground |
W-B - Body ground |
Steering control ECU ground |
Always |
Below 1 Ω |
|
E84-1 (+BO) - E82-7 (PGND) |
R - W-B |
Steering angle sensor power supply line |
Always |
11 to 14 V |
|
E84-3 (LV) - E82-7 (PGND) |
B - W-B |
Power source for steering actuator lock |
Engine switch on (IG) |
11 to 14 V |
|
E84-4 (S1) - E82-7 (PGND) |
R - W-B |
Steering actuator motor rotation angle sensor signal |
Engine switch on (IG) |
Sine wave |
|
E84-6 (RV) - E82-7 (PGND) |
W- W-B |
Steering actuator resolver excitation output voltage |
Engine switch on (IG) |
Sine wave |
|
E84-7 (SIL) - E82-7 (PGND) |
R - W-B |
Diagnostic communication signal |
Engine switch on (IG) |
Pulse generation |
|
E84-9 (CANH) - E84-20 (CANL) |
LG - L |
CAN communication |
Engine switch on (IG) |
Pulse generation |
|
E84-10 (SS1-) - E82-7 (PGND) |
GR - W-B |
Steering angle sensor signal |
Engine running and steering wheel turned |
Pulse generation |
|
E84-12 (LG) - E82-7 (PGND) |
Y - W-B |
Steering actuator lock ground |
Engine running |
Pulse generation |
|
E84-14 (S2) - E82-7 (PGND) |
L - W-B |
Steering actuator motor rotation angle sensor signal |
Engine switch on (IG) |
Sine wave |
|
E84-15 (RG) - E82-7 (PGND) |
G - W-B |
Steering actuator resolver common ground |
Always |
Below 1 Ω |
|
E84-16 (SG2+) - E82-7 (PGND) |
Shielded - W-B |
Shielded ground wire for steering actuator motor rotation angle sensor signal wire and control signal wire |
Engine switch on (IG) |
Pulse generation |
|
E84-19 (SS1+) - E82-7 (PGND) |
L - W-B |
Steering angle sensor signal |
Engine running and steering wheel turned |
3 to 4 V |
|
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