Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014TFO
Model Year Start: 2018 Model: Camry Prod Date Range: [06/2017 - 10/2020]
Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: Steering Pad Switch Circuit; 2018 - 2020 MY Camry [06/2017 - 10/2020]

Steering Pad Switch Circuit

DESCRIPTION

  • The steering pad switch assembly outputs the on/off signal and various control signals to the ECM.
  • The ECM performs cruise control according to the signals received from the steering pad switch assembly.

WIRING DIAGRAM

for A25A-FKS:
for 2GR-FKS:

CAUTION / NOTICE / HINT

NOTICE:

  • The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

    Click here 2018 - 2019 MY Camry [06/2017 - 09/2019]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PRECAUTION 2020 MY Camry [09/2019 - 03/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PRECAUTION 2020 MY Camry [03/2020 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: PRECAUTION

  • Before replacing the ECM, refer to Registration.

    w/o Smart Key System: 2018 - 2019 MY Camry [03/2017 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION 2020 - 2024 MY Camry [09/2019 -        ]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION

    w/ Smart Key System: 2018 - 2019 MY Camry [03/2017 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION 2020 - 2022 MY Camry [09/2019 - 08/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION

PROCEDURE

1.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

*c

+RES Switch

*d

CANCEL Switch

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Radar Cruise 1 / Data List.

(e) Read the Data List according to the display on the Techstream.

Powertrain > Cruise Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Cancel Switch

CANCEL switch status

ON or OFF

ON: CANCEL switch pushed

OFF: CANCEL switch not pushed

-

-SET Switch

-SET switch status

ON or OFF

ON: -SET switch pushed

OFF: -SET switch not pushed

-

+RES Switch

+RES switch status

ON or OFF

ON: +RES switch pushed

OFF: +RES switch not pushed

-

Cruise Main Switch Operation Condition

Cruise control main switch status

ON or OFF

ON: Cruise control main switch pushed

OFF: Cruise control main switch not pushed

-

Powertrain > Cruise Control > Data List

Tester Display

Cancel Switch

-SET Switch

+RES Switch

Cruise Main Switch Operation Condition

OK:

The value of each measurement item changes according to the operation of the steering pad switch assembly.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 2018 - 2020 MY Camry [06/2017 - 03/2020]; CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: PROBLEM SYMPTOMS TABLE 2020 MY Camry [03/2020 - 10/2020]; CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Remove the steering pad switch assembly.

Click here 2018 - 2020 MY Camry [06/2017 - 10/2020]; STEERING COLUMN: STEERING PAD SWITCH: REMOVAL

(b) Inspect the steering pad switch assembly.

Click here 2018 - 2020 MY Camry [03/2017 - 10/2020]; STEERING COLUMN: STEERING PAD SWITCH: INSPECTION

NG

REPLACE STEERING PAD SWITCH ASSEMBLY

OK

3.

INSPECT SPIRAL CABLE SUB-ASSEMBLY

(a) Remove the spiral cable sub-assembly.

Click here 2018 - 2020 MY Camry [06/2017 - 10/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: REMOVAL

(b) Inspect the spiral cable sub-assembly.

Click here 2018 - 2020 MY Camry [03/2017 - 03/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: INSPECTION 2020 - 2024 MY Camry [03/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: INSPECTION

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY 2018 - 2020 MY Camry [03/2017 - 03/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: COMPONENTS 2020 - 2024 MY Camry [03/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SPIRAL CABLE: COMPONENTS

OK

4.

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)

(a) Disconnect the K22 spiral cable sub-assembly connector.

(b) Disconnect the A24 ECM connector (for A25A-FKS).

(c) Disconnect the A21 ECM connector (for 2GR-FKS).

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

Standard Resistance (for A25A-FKS):

Tester Connection

Condition

Specified Condition

A24-27 (CCS) - K22-13 (CCS)

Always

Below 1 Ω

A24-28 (ECCS) - K22-2 (ECC)

Always

Below 1 Ω

A24-27 (CCS) or K22-13 (CCS) - Body ground

Always

10 kΩ or higher

A24-28 (ECCS) or K22-2 (ECC) - Body ground

Always

10 kΩ or higher

Standard Resistance (for 2GR-FKS):

Tester Connection

Condition

Specified Condition

K22-13 (CCS) - A21-41 (CCS)

Always

Below 1 Ω

K22-2 (ECC) - Body ground

Always

Below 1 Ω

K22-13 (CCS) or A21-41 (CCS) - Body ground

Always

10 kΩ or higher

Result

Proceed to

OK (for A25A-FKS)

A

OK (for 2GR-FKS)

B

NG

C
B

REPLACE ECM

C

REPAIR OR REPLACE HARNESS OR CONNECTOR
A

5.

CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND)

(a) Disconnect the A24 ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A24-10 (E1) - Body ground

Always

Below 1 Ω
OK

REPLACE ECM 2018 - 2020 MY Camry [03/2017 - 03/2020]; A25A-FKS (ENGINE CONTROL): ECM: COMPONENTS 2020 - 2024 MY Camry [03/2020 -        ]; A25A-FKS (ENGINE CONTROL): ECM: COMPONENTS

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR