TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 2A and 2C main body ECU (driver side junction block) connectors.
(b) Disconnect the 2F main body ECU connector.
(c) 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 connectors disconnected.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
2C-24 (BECU) - Body ground |
L - Body ground |
Battery power supply |
Always |
11 to 14 V |
2A-1 (ACC) - Body ground |
B - Body ground |
ACC power supply |
Always |
11 to 14 V |
2F-16 (GND1) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(d) Reconnect the 2A and 2C main body ECU (driver side junction block assembly) connectors.
(e) Reconnect the 2F main body ECU (driver side junction block assembly) connector.
(f) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D48-10 (LIN2) - 2F-16 (GND1) |
P - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the main body ECU (driver side junction block assembly) may be malfunctioning.
2. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for DRIVER SIDE)
(a) Disconnect the I4 power window regulator motor assembly (for driver side) 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
I4-2 (B) - I4-1 (GND) |
P - W-B |
Battery power supply |
Always |
11 to 14 V |
I4-1 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the I4 power window regulator motor assembly (for driver side) connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
I4-9 (LIN) - I4-1 (GND) |
P - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the power window regulator motor assembly (for driver side) may be malfunctioning.
3. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for FRONT PASSENGER SIDE)
(a) Disconnect the H4 power window regulator motor assembly (for front passenger side) 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
H4-2 (B) - H4-1 (GND) |
GR - W-B |
Battery power supply |
Always |
11 to 14 V |
H4-1 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the H4 power window regulator motor assembly (for front passenger side) connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
H4-9 (LIN) - H4-1 (GND) |
BR - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the power window regulator motor assembly (for front passenger side) may be malfunctioning.
4. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for REAR RH SIDE)
(a) Disconnect the J2 power window regulator motor assembly (for rear RH side) 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
J2-2 (B) - J2-1 (GND) |
Y - W-B |
Battery power supply |
Always |
11 to 14 V |
J2-1 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the J2 power window regulator motor assembly (for rear RH side) connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
J2-9 (LIN) - J2-1 (GND) |
V - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the power window regulator motor assembly (for rear RH side) may be malfunctioning.
5. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for REAR LH SIDE)
(a) Disconnect the K2 power window regulator motor assembly (for rear LH side) 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
K2-2 (B) - K2-1 (GND) |
GR - W-B |
Battery power supply |
Always |
11 to 14 V |
K2-1 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the K2 power window regulator motor assembly (for rear LH side) connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
K2-9 (LIN) - K2-1 (GND) |
LG - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the power window regulator motor assembly (for rear LH side) may be malfunctioning.
6. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
(a) Disconnect the I6 multiplex network master switch assembly 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
I6-11 (B) - I6-12 (E) |
GR - W-B |
Battery power supply |
Always |
11 to 14 V |
I6-12 (E) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the I6 multiplex network master switch assembly connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
I6-17 (LIN1) - I6-12 (E) |
L - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the multiplex network master switch assembly may be malfunctioning.
7. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) [w/ Sliding Roof]
(a) Disconnect the P4 sliding roof ECU (sliding roof drive gear assembly) 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
P4-1 (B) - P4-2 (E) |
R - W-B |
Battery power supply |
Always |
11 to 14 V |
P4-2 (E) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the P4 sliding roof ECU (sliding roof drive gear assembly) connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
P4-4 (LIN) - P4-2 (E) |
P - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the sliding roof ECU (sliding roof drive gear assembly) may be malfunctioning.
8. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) [w/ Smart Key System]
(a) Disconnect the D25 certification ECU (smart key ECU assembly) 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D25-1 (+B) - D25-15 (E) |
G - B |
Battery power supply |
Always |
11 to 14 V |
D25-15 (E) - Body ground |
B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the D25 certification ECU (smart key ECU assembly) connector.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D25-16 (IG) - D25-15 (E) |
R - B |
Engine switch power supply |
Ignition switch ON |
11 to 14 V |
D25-16 (IG) - D25-15 (E) |
R - B |
Engine switch power supply |
Ignition switch off |
Below 1 V |
D25-29 (LIN) - D25-15 (E) |
P - B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the certification ECU (smart key ECU assembly) may be malfunctioning.
9. CHECK POWER MANAGEMENT CONTROL ECU (w/ Smart Key System)
(a) Disconnect the D43 power management control ECU 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D43-1 (AM22) - D43-6 (GND) |
LG - W |
Battery power supply |
Always |
11 to 14 V |
D43-2 (AM21) - D43-6 (GND) |
Y - W |
Battery power supply |
Always |
11 to 14 V |
D43-5 (GND2) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
D43-6 (GND) - Body ground |
W - Body ground |
Ground |
Always |
Below 1 Ω |
(c) Reconnect the D43 power management control ECU connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D43-24 (LIN2) -D43-6 (GND) |
BR - W |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the power management control ECU connector.
10. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) [w/ Smart Key System]
(a) Disconnect the D17 steering lock ECU (steering lock actuator assembly) 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.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D17-1 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
D17-6 (IG2) - D17-1 (GND) |
LG - W-B |
Engine switch power supply |
Ignition switch ON |
11 to 14 V |
D17-6 (IG2) - D17-1 (GND) |
LG - W-B |
Engine switch power supply |
Ignition switch off |
Below 1 V |
D17-7 (B) - D17-1 (GND) |
P - W-B |
Battery power supply |
Always |
11 to 14 V |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the D17 steering lock ECU (steering lock actuator assembly) connector.
(d) Check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D17-5 (LIN) - D17-1 (GND) |
L - W-B |
LIN communication line |
Ignition switch ON |
Pulse generation |
If the result is not as specified, the steering lock ECU (steering lock actuator assembly) may be malfunctioning.
Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination
Meter
DESCRIPTION
The stereo component amplifier assembly receives a vehicle speed signal from
the combination meter assembly to control the ASL function.
HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to the
combination meter ...
Power Window Switch Malfunction (B2312)
DESCRIPTION
The power window regulator motor assembly is operated by the power window regulator
master switch assembly or power window regulator switch assembly. The power window
regulator motor assembly has motor, regulator and ECU functions.
This DTC i ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
NOTICE:
When disconnecting the steering intermediate shaft assembly and pinion shaft
of steering gear assembly, be sure to place matchmarks before servicing.
PROCEDURE
1. INSTALL TIE ROD ASSEMBLY LH
(a) I ...