Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM1000000025QEJ
Model Year Start: 2023 Model: Corolla Hatchback Prod Date Range: [09/2022 -           ]
Title: K120 / K121 (CVT): SHIFT LEVER: INSPECTION; 2023 - 2025 MY Corolla Corolla Hatchback [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 (w/ Sequential Shift)

(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)