Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000028DB8
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: LIGHTING (INT): LIGHTING SYSTEM: TERMINALS OF ECU; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]

TERMINALS OF ECU

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

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

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition
*1: HV model

*2: Gasoline model

*3: for Hatchback

*4: for Sedan

*5: w/ Unlock Detection Switch

*6: Differs depending on the vehicle model

8K-1 - Body ground

Auxiliary battery power supply

Ignition switch off*1

Always*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

8H-27 - Body ground

Rear door courtesy light switch assembly RH input

Rear door RH open

Below 1 V

Rear door RH closed

11 to 14 V or pulse output (maximum 14 V)*6

8D-11 - Body ground

Interior lights power supply

DOME CUT relay on

11 to 14 V

DOME CUT relay off

Below 1 V

I85-3 (LSFR) - Body ground

Front door unlock detection switch RH input

Front door RH locked

11 to 14 V or pulse output (maximum 14 V)*6

Front door RH unlocked

Below 1 V

I85-9 (LSFL) - Body ground

Front door unlock detection switch LH input

Front door LH locked

11 to 14 V or pulse output (maximum 14 V)*6

Front door LH unlocked

Below 1 V

I85-10 (LSWL) - Body ground*5

Rear door unlock detection switch LH input

Rear door LH locked

11 to 14 V or pulse output (maximum 14 V)*6

Rear door LH unlocked

Below 1 V

I86-23 (LSWR) - Body ground*5

Rear door unlock detection switch RH input

Rear door RH locked

11 to 14 V or pulse output (maximum 14 V)*6

Rear door RH unlocked

Below 1 V

I85-5 (ILE) - Body ground

Illuminated entry system drive output

Illuminated entry system inactive

11 to 14 V

Illuminated entry system operation

Below 1 V

8H-24 - Body ground

No. 1 luggage compartment light assembly power supply

DOME CUT relay on

11 to 14 V

DOME CUT relay off

Below 1 V

8H-18 - Body ground

Rear door courtesy light switch assembly LH input

Rear door LH open

Below 1 V

Rear door LH closed

11 to 14 V or pulse output (maximum 14 V)*6

8H-5 - Body ground

back door lock with courtesy light switch assembly*3 or luggage compartment door lock assembly*4 input

Back door*3 or luggage compartment door*4 open

Below 1 V

Back door*3 or luggage compartment door*4 closed

11 to 14 V or pulse output (maximum 14 V)*6

8H-23 - Body ground

Front door courtesy light switch assembly LH input

Front door LH open

Below 1 V

Front door LH closed

11 to 14 V or pulse output (maximum 14 V)*6

8H-22 - Body ground

Front door courtesy light switch assembly RH input

Front door RH open

Below 1 V

Front door RH closed

11 to 14 V or pulse output (maximum 14 V)*6

8H-19 - Body ground

No. 1 luggage compartment light assembly drive output

No. 1 luggage compartment light assembly off

11 to 14 V

No. 1 luggage compartment light assembly on

Below 1 V

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System)

(a) Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

I167-20 (SWIL) - I167-30 (AGND)

Engine switch illumination drive output

Engine switch illumination on

11 to 14 V

Engine switch illumination off

Below 1 V