Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000028LTD
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: TERMINALS OF ECU; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]

TERMINALS OF ECU

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Driver Door)

(a) Disconnect the L2 power window regulator motor assembly LH (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

Always*1

Ignition switch off*2

11 to 14 V
  • *1: for Gasoline Model
  • *2: for HV Model

(c) Reconnect the L2 power window regulator motor assembly LH (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 RH (for Front Passenger Door)

(a) Disconnect the K2 power window regulator motor assembly RH (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

Always*1

Ignition switch off*2

11 to 14 V
  • *1: for Gasoline Model
  • *2: for HV Model

(c) Reconnect the K2 power window regulator motor assembly RH (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 LH (for Rear LH Door) (w/ Rear Seat)

(a) Disconnect the N2 power window regulator motor assembly LH (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

Always*1

Ignition switch off*2

11 to 14 V
  • *1: for Gasoline Model
  • *2: for HV Model

(c) Reconnect the N2 power window regulator motor assembly LH (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 RH (for Rear RH Door) (w/ Rear Seat)

(a) Disconnect the M2 power window regulator motor assembly RH (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

Always*1

Ignition switch off*2

11 to 14 V
  • *1: for Gasoline Model
  • *2: for HV Model

(c) Reconnect the M2 power window regulator motor assembly RH (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 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

Always*1

Ignition switch off*2

11 to 14 V

L7-12 (GND) - Body ground

Ground

Always

Below 1 Ω
  • *1: for Gasoline Model
  • *2: for HV Model

(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) (w/ Rear Seat)

(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) (w/ Rear Seat)

(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 DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

(b) Reconnect the power distribution box assembly connectors.

(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 connected.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

MB-13 (GND1) - Body ground

Ground

Always

Below 1 Ω

MB-14 (GND2) - Body ground

Ground

Always

Below 1 Ω

MB-26 (BECU) - Body ground

Auxiliary battery power supply

Always*1

Ignition switch off*2

11 to 14 V

MB-27 (IGR) - Body ground

IG power supply

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V
  • *1: for Gasoline Model
  • *2: for HV Model

(d) Reconnect the MB main body ECU (multiplex network body ECU) connector.

(e) Check for voltage and check pulses according to the value(s) in the table below.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

8H-22 (FRCY) - Body ground

Front door courtesy light switch (for RH) input

Front door RH open → closed

Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*

8H-23 (FLCY) - Body ground

Front door courtesy light switch (for LH) input

Front door LH open → closed

Below 1 V → 11 to 14 V or pulse output (maximum 14 V)*

8A-15 - Body ground

LIN communication line

Ignition switch ON

Pulse generation

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