Components
COMPONENTS
ILLUSTRATION
|
*1 | BRAKE HOLD SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY) |
- | - |
Inspection
INSPECTION
PROCEDURE
1. INSPECT BRAKE HOLD SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)
| (a) Make sure that there is no looseness in the locking part and the connecting part of the connector. OK: The connector is securely connected. |
|
(b) Disconnect the brake hold switch (electric parking brake switch assembly) connector.
(c) Check both the connector case and the terminal for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
8 (+B) - 16 (GND1) | Switch pushed |
Below 1 Ω |
|
8 (+B) - 16 (GND1) | Switch not pushed |
10 kΩ or higher |
HINT:
If the result is not as specified, replace the brake hold switch (electric parking brake switch assembly).
Installation
INSTALLATION
PROCEDURE
1. INSTALL BRAKE HOLD SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)
| (a) Engage the claw and install the brake hold switch (electric parking brake switch assembly) with the 4 screws. |
|
(b) Engage the guide and clamp.
2. INSTALL REAR UPPER CONSOLE PANEL SUB-ASSEMBLY
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Removal
REMOVAL
PROCEDURE
1. PRECAUTION
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2. REMOVE REAR UPPER CONSOLE PANEL SUB-ASSEMBLY
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3. REMOVE BRAKE HOLD SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY)
| (a) Disengage the clamp and guide. |
|
(b) Remove the 4 screws and brake hold switch (electric parking brake switch assembly).
Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Networking: Lin Communication System(for Gasoline Model)
Lost Communication with Power Source Control (B278C) DESCRIPTION This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and power management control ECU stops for 10 seconds or more. DTC No. Detection Item DTC Detection Condition Trouble Area B278C Lost Comm ...