Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000015G7M
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 - 09/2019]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): Transmission Control Switch Circuit; 2018 - 2019 MY Camry HV [07/2017 - 09/2019]

Transmission Control Switch Circuit

DESCRIPTION

When the shift lever is in S, different ranges can be chosen using the floor shift sequential gate.

WIRING DIAGRAM

PROCEDURE

1.

READ VALUE USING TECHSTREAM (SPORTS SHIFT POSITION)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Data List / Sports Shift Position.

Powertrain > Hybrid Control > Data List

Tester Display

Sports Shift Position

(d) Read the value displayed on the Techstream.

Result

Proceed to

The Techstream display changes according to the shift lever operation.

A

The Techstream display does not change according to the shift lever operation.

B

(e) Turn the power switch off.

B

GO TO STEP 4

A

2.

READ VALUE USING TECHSTREAM (SPORTS SHIFT UP SIGNAL, SPORTS SHIFT DOWN SIGNAL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Data List / Sports Shift UP Signal, Sports Shift DOWN Signal.

Powertrain > Hybrid Control > Data List

Tester Display

Sports Shift UP Signal

Sports Shift DOWN Signal

(d) Read the value displayed on the Techstream.

Result

Proceed to

The Techstream display changes according to the transmission control switch (shift lock control unit assembly) operation.

A

The Techstream display does not change according to the transmission control switch (shift lock control unit assembly) operation.

B

(e) Turn the power switch off.

B

GO TO STEP 7

A

3.

CHECK FOR INTERMITTENT PROBLEMS

Click here 2018 - 2024 MY Camry HV [07/2017 -        ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): CHECK FOR INTERMITTENT PROBLEMS

OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

NG

REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

4.

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

(a) Disconnect the K29 transmission control switch (shift lock control unit assembly) connector.

(b) Turn the power switch on (IG).

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

K29-4 (IG) - Body ground

Power switch on (IG)

11 to 14 V

*a

Front view of wire harness connector

(to Transmission Control Switch (Shift Lock Control Unit Assembly))

(d) Turn the power switch off.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

K29-4 (IG) - Body ground

Power switch off

Below 1 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K29-2 (E) - Body ground

Power switch off

Below 1 Ω

(g) Reconnect the K29 transmission control switch (shift lock control unit assembly) connector.

NG

CHECK POWER SOURCE CIRCUIT
OK

5.

INSPECT TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY)

(a) Disconnect the K29 transmission control switch (shift lock control unit assembly) connector.

(b) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Condition

Specified Condition

K29-4 (IG) - K29-5 (S)

Shift lever in S

Shift lever held in "+" or "-"

Below 13 Ω

K29-4 (IG) - K29-5 (S)

Shift lever in any position except S

10 kΩ or higher

K29-3 (SFTU) - K29-2 (E)

Shift lever held in "+"

Below 13 Ω

K29-3 (SFTU) - K29-2 (E)

Shift lever in S

10 kΩ or higher

K29-1 (SFTD) - K29-2 (E)

Shift lever held in "-"

Below 13 Ω

K29-1 (SFTD) - K29-2 (E)

Shift lever in S

10 kΩ or higher

*a

Component without harness connected

(Transmission Control Switch (Shift Lock Control Unit Assembly))

(c) Reconnect the K29 transmission control switch (shift lock control unit assembly) connector.

NG

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

OK

6.

CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY))

(a) Disconnect the K70 hybrid vehicle control ECU assembly connector.

*a

Rear view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

(b) Turn the power switch on (IG).

(c) Measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.

Standard Voltage:

Tester Connection

Condition

Specified Condition

K70-1 (M) - Body ground

Power switch on (IG)

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

11 to 14 V

Power switch on (IG)

Except shift lever in S, "+" and "-"

Below 1 V

NOTICE:

If the power switch is turned on (IG) with the hybrid vehicle control ECU assembly connector disconnected, other DTCs will be stored. After performing the inspection, clear the DTCs.

(d) Turn the power switch off.

(e) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Condition

Specified Condition

K70-9 (SFTU) - Body ground

Shift lever held in "+"

Below 13 Ω

K70-9 (SFTU) - Body ground

Shift lever in S

10 kΩ or higher

K70-8 (SFTD) - Body ground

Shift lever held in "-"

Below 13 Ω

K70-8 (SFTD) - Body ground

Shift lever in S

10 kΩ or higher

(f) Reconnect the K70 hybrid vehicle control ECU assembly connector.

OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.

INSPECT TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY)

(a) Disconnect the K29 transmission control switch (shift lock control unit assembly) connector.

(b) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Condition

Specified Condition

K29-3 (SFTU) - K29-2 (E)

Shift lever held in "+"

Below 13 Ω

K29-3 (SFTU) - K29-2 (E)

Shift lever in S

10 kΩ or higher

K29-1 (SFTD) - K29-2 (E)

Shift lever held in "-"

Below 13 Ω

K29-1 (SFTD) - K29-2 (E)

Shift lever in S

10 kΩ or higher

*a

Component without harness connected

(to Transmission Control Switch (Shift Lock Control Unit Assembly))

(c) Reconnect the K29 transmission control switch (shift lock control unit assembly) connector.

NG

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

OK

8.

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY) - HYBRID VEHICLE CONTROL ECU ASSEMBLY)

(a) Disconnect the K70 hybrid vehicle control ECU assembly connector.

(b) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard Resistance:

Tester Connection

Condition

Specified Condition

K70-9 (SFTU) - Body ground

Shift lever held in "+"

Below 13 Ω

Shift lever in S

10 kΩ or higher

K70-8 (SFTD) - Body ground

Shift lever held in "-"

Below 13 Ω

Shift lever in S

10 kΩ or higher

*a

Rear view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

(c) Reconnect the K70 hybrid vehicle control ECU assembly connector.

OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR