Toyota Corolla Cross: Terminals Of Ecu
TERMINALS OF ECU
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
(a) Disconnect the L7 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) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
L7-11 (B) - L7-12 (GND) |
Power supply | Ignition switch off |
11 to 14 V |
|
L7-12 (GND) - Body ground |
Ground | Always |
Below 1 Ω |
(c) Reconnect the L7 multiplex network master switch assembly connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
L7-15 (DOWN) - L7-12 (GND) |
Power window motor DOWN output | Ignition switch ON, driver door power window regulator switch not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, driver door power window moving, driver door power window regulator switch pushed halfway down (Manual operation) |
Below 1 V | ||
|
L7-20 (UP) - L7-12 (GND) |
Power window motor UP output | Ignition switch ON, driver door power window regulator switch not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, driver door power window moving, driver door power window regulator switch pulled halfway up (Manual operation) |
Below 1 V |
CHECK POWER WINDOW REGULATOR SWITCH ASSEMBLY
(a) Disconnect the K12 power window regulator switch assembly connector.
(b) Measure the 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) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
K12-7 (GND) - Body ground |
Ground | Always |
Below 1 Ω |
(c) Reconnect the K12 power window regulator switch assembly connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
K12-5 (UP) - K12-7 (GND) |
Power window motor UP output | Ignition switch ON, power window regulator switch assembly not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly pulled halfway up (Manual operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully open |
11 to 14 V | ||
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully closed |
11 to 14 V | ||
|
K12-4 (DOWN) - K12-7 (GND) |
Power window motor DOWN output | Ignition switch ON, power window regulator switch assembly not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly pushed halfway down (Manual operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully closed |
11 to 14 V | ||
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully open |
11 to 14 V | ||
|
K12-8 (AUTO) - K12-7 (GND) |
Power window motor AUTO UP output | Ignition switch ON, front passenger door power window fully open |
11 to 14 V |
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully closed |
11 to 14 V | ||
| Power window motor AUTO DOWN output |
Ignition switch ON, front passenger door power window fully closed |
11 to 14 V | |
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully open |
11 to 14 V |
CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door)
(a) Disconnect the N3 rear power window regulator switch assembly (for LH door) connector.
(b) Measure the 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) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
N3-7 (GND) - Body ground |
Ground | Always |
Below 1 Ω |
(c) Reconnect the N3 rear power window regulator switch assembly (for LH door) connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
N3-5 (UP) - N3-7 (GND) | Power window motor UP output |
Ignition switch ON, rear power window regulator switch assembly (for LH door) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) pulled halfway up (Manual operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully open |
11 to 14 V | ||
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully closed |
11 to 14 V | ||
|
N3-4 (DOWN) - N3-7 (GND) |
Power window motor DOWN output | Ignition switch ON, rear power window regulator switch assembly (for LH door) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) pushed halfway down (Manual operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully closed |
11 to 14 V | ||
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully open |
11 to 14 V | ||
|
N3-8 (AUTO) - N3-7 (GND) |
Power window motor AUTO UP output | Ignition switch ON, rear LH door power window fully open |
11 to 14 V |
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully closed |
11 to 14 V | ||
| Power window motor AUTO DOWN output |
Ignition switch ON, rear LH door power window fully closed |
11 to 14 V | |
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully open |
11 to 14 V |
CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for RH Door)
(a) Disconnect the M3 rear power window regulator switch assembly (for RH door) connector.
(b) Measure the 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) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
M3-7 (GND) - Body ground |
Ground | Always |
Below 1 Ω |
(c) Reconnect the M3 rear power window regulator switch assembly (for RH door) connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
M3-5 (UP) - M3-7 (GND) | Power window motor UP output |
Ignition switch ON, rear power window regulator switch assembly (for RH door) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) pulled halfway up (Manual operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully open |
11 to 14 V | ||
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully closed |
11 to 14 V | ||
|
M3-4 (DOWN) - M3-7 (GND) |
Power window motor DOWN output | Ignition switch ON, rear power window regulator switch assembly (for RH door) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) pushed halfway down (Manual operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully closed |
11 to 14 V | ||
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully open |
11 to 14 V | ||
|
M3-8 (AUTO) - M3-7 (GND) |
Power window motor AUTO UP output | Ignition switch ON, rear RH door power window fully open |
11 to 14 V |
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully closed |
11 to 14 V | ||
| Power window motor AUTO DOWN output |
Ignition switch ON, rear RH door power window fully closed |
11 to 14 V | |
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully open |
11 to 14 V |
CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)
(a) Disconnect the L2 power window regulator motor assembly (for driver door) 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) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
L2-1 (GND) - Body ground |
Ground | Always |
Below 1 Ω |
|
L2-2 (B) - Body ground |
Power supply | Ignition switch off |
11 to 14 V |
(c) Reconnect the L2 power window regulator motor assembly (for driver door) connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
L2-7 (DOWN) - L2-1 (GND) |
Power window motor DOWN input | Ignition switch ON, multiplex network master switch assembly (driver door power window regulator switch) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, driver door power window moving, multiplex network master switch assembly (driver door power window regulator switch) pushed halfway down (Manual operation) |
Below 1 V | ||
| Ignition switch ON, driver door power window fully closed |
11 to 14 V | ||
| Ignition switch ON, driver door power window moving, multiplex network master switch assembly (driver door power window regulator switch) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, driver door power window fully open |
11 to 14 V | ||
|
L2-10 (UP) - L2-1 (GND) |
Power window motor UP input | Ignition switch ON, multiplex network master switch assembly (driver door power window regulator switch) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, driver door power window moving, multiplex network master switch assembly (driver door power window regulator switch) pulled halfway up (Manual operation) |
Below 1 V | ||
| Ignition switch ON, multiplex network master switch assembly (driver door power window regulator switch) fully open |
11 to 14 V | ||
| Ignition switch ON, driver door power window moving, multiplex network master switch assembly (driver door power window regulator switch) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, driver door power window fully closed |
11 to 14 V |
CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Door)
(a) Disconnect the K2 power window regulator motor assembly (for front passenger door) 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) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
K2-1 (GND) - Body ground |
Ground | Always |
Below 1 Ω |
|
K2-2 (B) - Body ground |
Power supply | Ignition switch off |
11 to 14 V |
(c) Reconnect the K2 power window regulator motor assembly (for front passenger door) connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
K2-4 (AUTO) - K2-1 (GND) |
Power window motor AUTO UP input | Ignition switch ON, front passenger door power window fully open |
11 to 14 V |
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully closed |
11 to 14 V | ||
| Power window motor AUTO DOWN input |
Ignition switch ON, front passenger door power window fully closed |
11 to 14 V | |
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully open |
11 to 14 V | ||
|
K2-7 (DOWN) - K2-1 (GND) |
Power window motor DOWN input | Ignition switch ON, power window regulator switch assembly not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly pushed halfway down (Manual operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully closed |
11 to 14 V | ||
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully open |
11 to 14 V | ||
|
K2-10 (UP) - K2-1 (GND) |
Power window motor UP input | Ignition switch ON, power window regulator switch assembly not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly pulled halfway up (Manual operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully open |
11 to 14 V | ||
| Ignition switch ON, front passenger door power window moving, power window regulator switch assembly fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, front passenger door power window fully closed |
11 to 14 V |
CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door)
(a) Disconnect the N2 power window regulator motor assembly (for rear LH door) 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) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
N2-1 (GND) - Body ground |
Ground | Always |
Below 1 Ω |
|
N2-2 (B) - Body ground |
Power supply | Ignition switch off |
11 to 14 V |
(c) Reconnect the N2 power window regulator motor assembly (for rear LH door) connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
N2-4 (AUTO) - N2-1 (GND) |
Power window motor AUTO UP input | Ignition switch ON, rear LH door power window fully open |
11 to 14 V |
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully closed |
11 to 14 V | ||
| Power window motor AUTO DOWN input |
Ignition switch ON, rear LH door power window fully closed |
11 to 14 V | |
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully open |
11 to 14 V | ||
|
N2-7 (DOWN) - N2-1 (GND) |
Power window motor DOWN input | Ignition switch ON, rear power window regulator switch assembly (for LH door) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) pushed halfway down (Manual operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully closed |
11 to 14 V | ||
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully open |
11 to 14 V | ||
|
N2-10 (UP) - N2-1 (GND) |
Power window motor UP input | Ignition switch ON, rear power window regulator switch assembly (for LH door) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) pulled halfway up (Manual operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully open |
11 to 14 V | ||
| Ignition switch ON, rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear LH door power window fully closed |
11 to 14 V |
CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door)
(a) Disconnect the M2 power window regulator motor assembly (for rear RH door) 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) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
M2-1 (GND) - Body ground |
Ground | Always |
Below 1 Ω |
|
M2-2 (B) - Body ground |
Power supply | Ignition switch off |
11 to 14 V |
(c) Reconnect the M2 power window regulator motor assembly (for rear RH door) connector.
(d) Measure the voltage according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
M2-4 (AUTO) - M2-1 (GND) |
Power window motor AUTO UP input | Ignition switch ON, rear RH door power window fully open |
11 to 14 V |
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully closed |
11 to 14 V | ||
| Power window motor AUTO DOWN input |
Ignition switch ON, rear RH door power window fully closed |
11 to 14 V | |
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully open |
11 to 14 V | ||
|
M2-7 (DOWN) - M2-1 (GND) |
Power window motor DOWN input | Ignition switch ON, rear power window regulator switch assembly (for RH door) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) pushed halfway down (Manual operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully closed |
11 to 14 V | ||
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pushed down (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully open |
11 to 14 V | ||
|
M2-10 (UP) - M2-1 (GND) |
Power window motor UP input | Ignition switch ON, rear power window regulator switch assembly (for RH door) not pushed or not pulled |
11 to 14 V |
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) pulled halfway up (Manual operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully open |
11 to 14 V | ||
| Ignition switch ON, rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pulled up (Auto operation) |
Below 1 V | ||
| Ignition switch ON, rear RH door power window fully closed |
11 to 14 V |
CHECK POWER DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
(a) Remove the main body ECU (multiplex network body ECU).
Click here
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|
*1 | Power Distribution Box Assembly |
*2 | Main Body ECU (Multiplex Network Body ECU) |
(b) Reconnect the power distribution box assembly connectors.
Click here
(c) Measure the voltage and resistance according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
MB-13 (GND1) - Body ground |
Ground | Always |
Below 1 Ω |
|
MB-26 (BECU) - Body ground |
Auxiliary battery power supply |
Ignition switch off | 11 to 14 V |
|
MB-27 (IGR) - Body ground |
IG power supply | Ignition switch off |
Below 1 V |
|
Ignition switch ON | 11 to 14 V |
(d) Install the main body ECU (multiplex network body ECU).
Click here
(e) Measure the voltage and check for pulses according to the value(s) in the table below.
|
Terminal No. (Symbol) | Terminal Description |
Condition | Specified Condition |
|---|---|---|---|
|
8F-3 (FLCY) - Body ground |
Front door courtesy light switch (for LH) input |
Front door LH open | Below 1 V |
|
Front door LH closed |
Below 1 V → 11 to 14 V or pulse output (maximum 14 V)* | ||
|
8F-5 (FRCY) - Body ground |
Front door courtesy light switch (for RH) input |
Front door RH open | Below 1 V |
|
Front door RH closed |
Below 1 V → 11 to 14 V or pulse output (maximum 14 V)* | ||
|
I85-28 (L2) - Body ground |
Driver door key-linked lock input |
Driver door key cylinder turned to lock |
Below 1 V |
|
Driver door key cylinder not turned |
Pulse generation | ||
|
I85-4 (UL3) - Body ground |
Driver door key-linked unlock input |
Driver door key cylinder turned to unlock |
Below 1 V |
|
Driver door key cylinder not turned |
Pulse generation |
- *: Differs depending on the vehicle model
READ NEXT:
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a p
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Power Window Control System
DTC No. Detection Item
Link B2312
Power Window Switch Malfunction
B231D96 D-Door P/W Motor Component Inte
VEHICLE CONTROL HISTORY (RoB)
VEHICLE CONTROL HISTORY (RoB)
NOTICE:
If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has
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Right Side Airbag Deployment Control Circuit Short to Ground (B002811)
DESCRIPTION
DTC No. Detection Item
DTC Detection Condition Trouble Area
Warning Indicate Test Mode / Check Mode
B002811 Right Side Airbag Deployment Control Circuit Short to Ground
One of the following conditions is met:
The airbag ECU assembly detects
Rear seats
The seatbacks of the rear
seats can be folded down.
Folding down the rear
seatbacks
1. Move the front seats forward.
2. Stow the rear armrest. (if
equipped).
3. Stow the rear center seat belt
buckle.
4. Lower the head restraints to
the lowest position.
5. Fold the seatback down while
pulling the se
