Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GUQS
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: DOOR LOCK: FRONT DOOR LOCK: INSPECTION; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]

INSPECTION

PROCEDURE

1. INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH

(a) Check the operation of the door lock motor.

(1) Apply auxiliary battery voltage and check the operation of the door lock motor.

OK:

Auxiliary Battery Connection

Result

Auxiliary battery positive (+) → Terminal 4 (L)

Auxiliary battery negative (-) → Terminal 1 (UL)

Locks

Auxiliary battery positive (+) → Terminal 1 (UL)

Auxiliary battery negative (-) → Terminal 4 (L)

Unlocks

If the result is not as specified, replace the front door lock with motor assembly LH.

*a

Unlock

*b

Lock

*c

Component without harness connected

(Front Door Lock with Motor Assembly LH)

(b) Check the operation of the door unlock detection switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

8 (LSSR) - 7 (E)

Locked

10 kΩ or higher

8 (LSSR) - 7 (E)

Unlocked

Below 1 Ω

If the result is not as specified, replace the front door lock with motor assembly LH.

(c) Check the operation of the door key lock and unlock switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

9 (L) - 7 (E)

Held to lock side

Below 1 Ω

9 (L) - 7 (E)

Neutral or held to unlock side

10 kΩ or higher

10 (UL) - 7 (E)

Held to unlock side

Below 1 Ω

10 (UL) - 7 (E)

Neutral or held to lock side

10 kΩ or higher

If the result is not as specified, replace the front door lock with motor assembly LH.

*a

Unlock

*b

Neutral

*c

Lock

*d

Component without harness connected

(Front Door Lock with Motor Assembly LH)

2. INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH

(a) Check the operation of the door lock motor.

(1) Apply auxiliary battery voltage and check the operation of the door lock motor.

OK:

Auxiliary Battery Connection

Result

Auxiliary battery positive (+) → Terminal 4 (L)

Auxiliary battery negative (-) → Terminal 1 (UL)

Locks

Auxiliary battery positive (+) → Terminal 1 (UL)

Auxiliary battery negative (-) → Terminal 4 (L)

Unlocks

If the result is not as specified, replace the front door lock with motor assembly RH.

*a

Unlock

*b

Lock

*c

Component without harness connected

(Front Door Lock with Motor Assembly RH)

(b) Check the operation of the door unlock detection switch.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

7 (LSSR) - 8 (E)

Locked

10 kΩ or higher

7 (LSSR) - 8 (E)

Unlocked

Below 1 Ω

If the result is not as specified, replace the front door lock with motor assembly RH.

(c) Check the operation of the door key lock and unlock switch. (w/ Lock Cylinder)

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

5 (UL) - 8 (E)

Held to unlock side

Below 1 Ω

5 (UL) - 8 (E)

Neutral or held to lock side

10 kΩ or higher

6 (L) - 8 (E)

Held to lock side

Below 1 Ω

6 (L) - 8 (E)

Neutral or held to unlock side

10 kΩ or higher

If the result is not as specified, replace the front door lock with motor assembly RH.

*a

Unlock

*b

Neutral

*c

Lock

*d

Component without harness connected

(Front Door Lock with Motor Assembly RH)