TERMINALS OF ECU
1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR)
(a) Disconnect the I13 connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
|
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
I13-14 (BDR) - Body ground |
V - Body ground |
+B power supply |
Always |
11 to 14 V |
|
I13-6 (CPUB) - Body ground |
LG - Body ground |
+B power supply |
Always |
11 to 14 V |
|
I13-5 (SIG) - Body ground |
L - Body ground |
Ignition power supply |
Ignition switch off → ON |
0 V → 11 to 14 V |
|
I13-7 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the I13 connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
I12-1 (LMVR) - I12-9 (LMHR) |
LG - P |
Vertical mirror motor drive voltage |
LH mirror surface moving upward → stopped |
11 to 14 V → 0 V |
|
I12-10 (LM+R) - I12-1 (LMVR) |
R - LG |
Vertical mirror motor drive voltage |
LH mirror surface moving downward → stopped |
11 to 14 V → 0 V |
|
I12-10 (LM+R) - I12-9 (LMHR) |
R - P |
Horizontal mirror motor drive voltage |
LH mirror surface moving right → stopped |
11 to 14 V → 0 V |
|
I12-9 (LMHR) - I12-1 (LMVR) |
P - LG |
Horizontal mirror motor drive voltage |
LH mirror surface moving left → stopped |
11 to 14 V → 0 V |
|
I12-5 (LVC) - I12-14 (LE1) |
Y - GR |
Mirror position sensor power supply |
Ignition switch ON |
4.55 to 5.45 V |
|
I12-6 (VSSR) - I12-14 (LE1) |
G - GR |
Mirror position sensor signal |
Ignition switch ON |
0.96 to 4.04 V |
|
I12-13 (HSSR) - I12-14 (LE1) |
L - GR |
Mirror position sensor signal |
Ignition switch ON |
0.96 to 4.04 V |
|
I13-3 (M2) - I13-13 (MSWE) |
V - Y |
M2 switch signal for seat memory switch |
M2 switch on |
Below 1 V |
|
M2 switch off |
11 to 14 V |
|||
|
I13-2 (M1) - I13-13 (MSWE) |
B - Y |
M1 switch signal for seat memory switch |
M1 switch on |
Below 1 V |
|
M1 switch off |
11 to 14 V |
|||
|
I13-1 (MM) - I13-13 (MSWE) |
GR - Y |
SET switch signal for seat memory switch |
SET switch on |
Below 1 V |
|
SET switch off |
11 to 14 V |
2. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR)
(a) Disconnect the H13 connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
|
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
H13-14 (BDR) - Body ground |
R - Body ground |
+B power supply |
Always |
11 to 14 V |
|
H13-6 (CPUB) - Body ground |
B - Body ground |
+B power supply |
Always |
11 to 14 V |
|
H13-5 (SIG) - Body ground |
L - Body ground |
Ignition power supply |
Ignition switch off → ON |
0 V → 11 to 14 V |
|
H13-7 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the H13 connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
H12-1 (RMVR) - H12-9 (RMHR) |
LG - P |
Vertical mirror motor drive voltage |
RH mirror surface moving upward → stopped |
11 to 14 V → 0 V |
|
H12-10 (RM+R) - H12-1 (RMVR) |
R - LG |
Vertical mirror motor drive voltage |
RH mirror surface moving downward → stopped |
11 to 14 V → 0 V |
|
H12-10 (RM+R) - H12-9 (RMHR) |
R - P |
Horizontal mirror motor drive voltage |
RH mirror surface moving right → stopped |
11 to 14 V → 0 V |
|
H12-9 (RMHR) - H12-1 (RMVR) |
P - LG |
Horizontal mirror motor drive voltage |
RH mirror surface moving left → stopped |
11 to 14 V → 0 V |
|
H12-5 (RVC) - H12-14 (RE1) |
Y - GR |
Mirror position sensor power supply |
Ignition switch ON |
4.55 to 5.45 V |
|
H12-6 (VSSR) - H12-14 (RE1) |
G - GR |
Mirror position sensor signal |
Ignition switch ON |
0.96 to 4.04 V |
|
H12-13 (HSSR) - H12-14 (RE1) |
L - GR |
Mirror position sensor signal |
Ignition switch ON |
0.96 to 4.04 V |
Problem Symptoms Table
Data List / Active TestData List / Active Test
DATA LIST / ACTIVE TEST
1. READ DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very usefu ...
TRAC OFF Indicator Light does not Come ON
DESCRIPTION
The skid control ECU is connected to the combination meter via CAN communication.
WIRING DIAGRAM
Refer to TRAC OFF Indicator Light Remains ON (See page
).
PROCEDURE
1.
CHECK CAN COMMUNICATION SYSTEM
(a) Check ...
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DESCRIPTION
The DTC is stored when the headlight leveling ECU assembly detects malfunctions
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DTC No.
DTC Detecting Conditio ...