| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001B1W6 |
| Model Year Start: 2019 | Model: Avalon | Prod Date Range: [04/2018 - 08/2020] |
| Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Gasoline Model): Drive Mode Select Switch Circuit; 2019 - 2020 MY Avalon [04/2018 - 08/2020] | ||
|
Drive Mode Select Switch Circuit |
DESCRIPTION
The characteristics of the electronic throttle and EPS operation change according to operation of the drive mode select switch (electric parking brake switch assembly).
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK THE PROBLEM SYMPTOMS |
(a) Check each symptom by checking the suspected areas in the table below.
|
Result |
Proceed to |
|---|---|
|
SPORT mode or NORMAL mode is abnormal. |
A |
|
ECO mode is abnormal. |
B |
| B |
|
|
|
2. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check for DTCs.
Click here
![2019 - 2022 MY Avalon [04/2018 - ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
|
Result |
Proceed to |
|---|---|
|
CAN communication system DTCs are not output. |
A |
|
CAN communication system DTCs are output. |
B |
| B |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (DRIVE MODE SELECT SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) - BODY GROUND) |
(a) Turn the engine switch off.
|
(b) Disconnect the G24 drive mode select switch (electric parking brake switch assembly) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G24-16 (GND1) - Body ground |
Always |
Below 1 Ω |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
INSPECT DRIVE MODE SELECT SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) |
(a) Inspect drive mode select switch (electric parking brake switch assembly).
Click here
OK:
Drive mode select switch (Electric parking brake switch assembly) is normal.
|
Result |
Proceed to |
|---|---|
|
CAN communication system DTCs are not output. |
A |
|
CAN communication system DTCs are output. |
B |
| B |
|
REPLACE DRIVE MODE SELECT SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) |
|
|
5. |
CHECK HARNESS AND CONNECTOR (DRIVE MODE SELECT SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) - ECM) |
(a) Connect the G24 drive mode select switch (electric parking brake switch assembly) connector.
|
(b) Disconnect the A18 ECM connectors. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
w/ Adaptive Variable Suspension System
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A18-55 (PWMS) - Body ground |
SPORT S/S+ mode switch being turned and held |
Below 1 Ω |
|
A18-55 (PWMS) - Body ground |
SPORT S/S+ mode switch not turned |
10 kΩ or higher |
|
A18-40 (SPCN) - Body ground |
NORMAL/CUSTOM mode switch being pushed and held |
Below 1 Ω |
|
A18-40 (SPCN) - Body ground |
NORMAL/CUSTOM mode switch not pushed |
10 kΩ or higher |
w/o Adaptive Variable Suspension System
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A18-55 (PWMS) - Body ground |
SPORT mode switch being turned and held |
Below 1 Ω |
|
A18-55 (PWMS) - Body ground |
SPORT mode switch not turned |
10 kΩ or higher |
|
A18-40 (SPCN) - Body ground |
NORMAL mode switch being pushed and held |
Below 1 Ω |
|
A18-40 (SPCN) - Body ground |
NORMAL mode switch not pushed |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|