DESCRIPTION
When the electric parking brake switch is pulled, a lock request signal is sent from the skid control ECU (brake actuator assembly) to the parking brake actuator assembly. When the electric parking brake switch is pushed, a release request signal is sent from the skid control ECU (brake actuator assembly) to the parking brake actuator assembly.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
---|---|---|---|---|---|
C060962 | Electric Parking Brake Switch Signal Compare Failure |
|
| DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
Vehicle Condition | ||||
---|---|---|---|---|
Pattern 1 | Pattern 2 | Pattern 3 | ||
Diagnosis Condition | - | - | - | - |
Malfunction Status | Parking brake switch open circuit is detected | ○ | - | - |
Parking brake switch short circuit is detected | - | ○ | - | |
Parking brake switch stuck malfunction | - | - | ○ | |
Detection Time | 1 second or more | 1 second or more | - | |
Number of Trips | 1 trip | 1 trip | 1 trip |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. | INSPECT ELECTRIC PARKING BRAKE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) |
(a) Remove the electric parking brake switch (electric parking brake switch assembly).
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(b) Inspect the electric parking brake switch (electric parking brake switch assembly).
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NG | REPLACE ELECTRIC PARKING BRAKE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) |
|
2. | CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) - ELECTRIC PARKING BRAKE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)) |
(a) Disconnect the J163 electric parking brake switch (electric parking brake switch assembly) connector.
(b) Disconnect the A41 skid control ECU (brake actuator assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
A41-36 (SWI1) - J163-10 (SWI1) | Always | Below 1 Ω |
A41-31 (SWO1) - J163-11 (SWO1) | Always | Below 1 Ω |
A41-41 (SWI2) - J163-2 (SWI2) | Always | Below 1 Ω |
A41-39 (SWO2) - J163-3 (SWO2) | Always | Below 1 Ω |
A41-36 (SWI1) or J163-10 (SWI1) - Body ground | Always | 10 kΩ or higher |
A41-31 (SWO1) or J163-11 (SWO1) - Body ground | Always | 10 kΩ or higher |
A41-41 (SWI2) or J163-2 (SWI2) - Body ground | Always | 10 kΩ or higher |
A41-39 (SWO2) or J163-3 (SWO2) - Body ground | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. | CLEAR DTC |
(a) Clear the DTCs.
Chassis > Brake/EPB > Clear DTCs(b) Turn the engine switch off.
|
4. | CHECK DTC |
(a) Check for DTCs.
Chassis > Brake/EPB > Trouble Codes Result | Proceed to |
---|---|
DTCs are output | A |
DTCs are not output | B |
A | REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
B | USE SIMULATION METHOD TO CHECK |
Lexus RX (RX 350L, RX450h) 2016-2024 Owners Manual > Do-it-yourself
maintenance: Checking and replacing
fuses
If any of the electrical components do not operate, a fuse may have
blown. If
this happens, check and replace the fuses as necessary.
1. Turn the power switch off.
2. Open the fuse box cover.
■ Engine compartment
Push the tab in and lift the lid off.
■ Driver's side instrument panel
R ...
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