Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GX0Q
Model Year Start: 2020 Model: Corolla Hatchback Prod Date Range: [01/2019 - 09/2022]
Title: K120 / K121 (CVT): SHIFT LEVER: INSPECTION; 2020 - 2022 MY Corolla Corolla Hatchback [01/2019 - 09/2022]

INSPECTION

PROCEDURE

1. INSPECT SHIFT LOCK CONTROL ECU (w/ Smart Key System)

HINT:

If the results of the following inspections are as specified but a malfunction has occurred, replace the shift lock control unit assembly.

(a) Inspect wire harness:

(1) Disconnect the shift lock control ECU connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

5 (IG) - Body ground

Engine switch on (IG)

11 to 14 V

Engine switch off

Below 1 V

4 (STP) - Body ground

Brake pedal depressed

11 to 14 V

Brake pedal released

Below 1 V

If the result is not as specified, repair or replace the shift lock control ECU wire harness.

*a

Front view of wire harness connector

(to Shift Lock Control ECU)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (E) - Body ground

Always

Below 1 Ω

If the result is not as specified, repair or replace the shift lock control ECU wire harness.

*a

Front view of wire harness connector

(to Shift Lock Control ECU)

(b) Inspect shift lock solenoid:

(1) Disconnect the shift lock solenoid connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (P) - 3 (E2)

Shift lever in P

10 kΩ or higher

Shift lever not in P

Below 1 Ω

If the result is not as specified, replace the shift lock control unit assembly.

*a

Front view of wire harness connector

(to Shift Lock Solenoid)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (SLS+) - 2 (SLS-)

Always

112 Ω

If the result is not as specified, replace the shift lock control unit assembly.

*a

Front view of wire harness connector

(to Shift Lock Solenoid)

2. INSPECT SHIFT LOCK CONTROL ECU (w/o Smart Key System)

HINT:

If the results of the following inspections are as specified but a malfunction has occurred, replace the shift lock control unit assembly.

(a) Inspect wire harness:

(1) Disconnect the shift lock control ECU connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

1 (ACC) - Body ground

Ignition switch ACC

11 to 14 V

Ignition switch off

Below 1 V

8 (STP) - Body ground

Brake pedal depressed

11 to 14 V

Brake pedal released

Below 1 V

4 (IG) - Body ground

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

If the result is not as specified, repair or replace the shift lock control ECU wire harness.

*a

Front view of wire harness connector

(to Shift Lock Control ECU)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

7 (E) - Body ground

Always

Below 1 Ω

If the result is not as specified, repair or replace the shift lock control ECU wire harness.

*a

Front view of wire harness connector

(to Shift Lock Control ECU)

(b) Inspect key interlock solenoid operation signal:

(1) Connect the shift lock control ECU connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

5 (KLS+) - Body ground

Ignition switch ACC and shift lever in P

Below 1 V

Ignition switch ACC and shift lever not in P

11 to 14 V

HINT:

Do not disconnect the shift lock control ECU connector.

If the result is not as specified, replace the shift lock control unit assembly.

*a

Component with harness connected

(Shift Lock Control ECU)

(c) Inspect shift lock solenoid:

(1) Disconnect the shift lock solenoid connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (P) - 3 (E2)

Shift lever in P

10 kΩ or higher

Shift lever not in P

Below 1 Ω

If the result is not as specified, replace the shift lock control unit assembly.

*a

Front view of wire harness connector

(to Shift Lock Solenoid)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (SLS+) - 2 (SLS-)

Always

112 Ω

If the result is not as specified, replace the shift lock control unit assembly.

*a

Front view of wire harness connector

(to Shift Lock Solenoid)

3. INSPECT TRANSMISSION CONTROL SWITCH

(a) Disconnect the transmission control switch connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (IG) - 5 (S)

Shift lever in M, "+" or "-"

Below 1 Ω

Shift lever not in M, "+" or "-"

10 kΩ or higher

3 (SFTU) - 2 (E)

Shift lever held in "+"

(Up-shift)

Below 1 Ω

Shift lever not held in "+"

(Up-shift)

10 kΩ or higher

1 (SFTD) - 2 (E)

Shift lever held in "-"

(Down-shift)

Below 1 Ω

Shift lever not held in "-"

(Down-shift)

10 kΩ or higher

If the result is not as specified, replace the shift lock control unit assembly.

*a

Component without harness connected

(Transmission Control Switch)