Last Modified: 11-20-2023 |
6.11:8.1.0 |
Doc ID: RM1000000014WNA |
Model Year Start: 2018 |
Model: Camry |
Prod Date Range: [06/2017 - 03/2020] |
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: Drive Mode Select Switch Circuit; 2018 - 2020 MY Camry [06/2017 - 03/2020] |
Drive Mode Select Switch Circuit
|
DESCRIPTION
The electronic throttle and the EPS character change by the operation of the drive mode 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
|
A
|
|
|
2.
|
CHECK CAN COMMUNICATION SYSTEM
|
(a) Check for DTCs.
Click here
Result
|
Proceed to
|
CAN communication system DTCs are not output.
|
A
|
CAN communication system DTCs are output.
|
B
|
A
|
|
|
3.
|
CHECK HARNESS AND CONNECTOR (DRIVE MODE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) - BODY GROUND)
|
(a) Turn the ignition switch off.
(b) Disconnect the K37 drive mode switch (electric parking brake switch assembly) connector.
|
|
*a
|
Front view of wire harness connector
(to Drive mode switch (electric parking brake switch assembly))
|
|
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
K37-16 (GND1) - Body ground
|
Always
|
Below 1 Ω
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
4.
|
INSPECT DRIVE MODE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)
|
(a) Inspect drive mode switch (electric parking brake switch assembly).
for UA80E: Click here
for UB80E: Click here
OK:
Drive mode switch (electric parking brake switch assembly) is normal.
Result
|
Proceed to
|
CAN communication system DTCs are not output. (for A25A-FKS)
|
A
|
CAN communication system DTCs are not output. (for 2GR-FKS)
|
B
|
CAN communication system DTCs are output.
|
C
|
C |
|
REPLACE ELECTRIC PARKING BRAKE SWITCH ASSEMBLY SWITCH ASSEMBLY
for UA80E: Click here
for UB80E: Click here
|
A
|
|
|
5.
|
CHECK HARNESS AND CONNECTOR (DRIVE MODE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) - ECM)
|
(a) Reconnect the K37 drive mode switch (electric parking brake switch assembly) connector.
(b) Disconnect the A24 ECM connectors.
|
|
*a
|
Front view of wire harness connector
(to ECM)
|
|
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A24-12 (PWMS) - Body ground
|
SPORT mode switch being turned and held
|
Below 1 Ω
|
A24-12 (PWMS) - Body ground
|
SPORT mode switch not turned
|
10 kΩ or higher
|
A24-13 (SPCN) - Body ground
|
NORMAL mode switch being pushed and held
|
Below 1 Ω
|
A24-13 (SPCN) - Body ground
|
NORMAL mode switch not pushed
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
6.
|
CHECK HARNESS AND CONNECTOR (DRIVE MODE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) - ECM)
|
(a) Reconnect the K37 drive mode switch (electric parking brake switch assembly) connector.
(b) Disconnect the A21 ECM connectors.
|
|
*a
|
Front view of wire harness connector
(to ECM)
|
|
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A21-55 (PWMS) - Body ground
|
SPORT mode switch being turned and held
|
Below 1 Ω
|
A21-55 (PWMS) - Body ground
|
SPORT mode switch not turned
|
10 kΩ or higher
|
A21-40 (SPCN) - Body ground
|
NORMAL mode switch being pushed and held
|
Below 1 Ω
|
A21-40 (SPCN) - Body ground
|
NORMAL mode switch not pushed
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|