DESCRIPTION The brake hold standby indicator light turns on if brake hold control is possible when the following conditions required for operation standby are met and the brake hold switch (electric parking brake switch assembly) is turned on while the power switch is on (IG).
WIRING DIAGRAM  CAUTION / NOTICE / HINT NOTICE: After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory". Click here PROCEDURE
(a) If the brake hold standby indicator light does not illuminate even though the brake hold switch (electric parking brake switch assembly) is pushed, check that the brake hold function operation conditions are met.
HINT: If a malfunction occurs in one of the following systems, the brake hold operated indicator light will blink. If this occurs, perform troubleshooting on the malfunctioning system.
(a) Check if CAN communication system DTCs are output. Click here
(a) Check if the skid control ECU (brake booster with master cylinder assembly) connector is securely connected. OK: The connector is securely connected.
(a) Turn the power switch off. (b) Perform the Active Test of the combination meter assembly (meter CPU) using the Techstream. Click here
(c) Check the combination meter assembly. OK: The brake hold standby indicator light turns on or off in accordance with Techstream operation.
(a) Select the Active Test on the Techstream. Click here
(b) Check the operating condition of the brake hold standby indicator light when operating it using the Techstream.
(b) Make sure that there is no looseness at the locking part and the connecting part of the connector. OK: The connector is securely connected. (c) Disconnect the G24 brake hold switch (electric parking brake switch assembly) connector. (d) Check both the connector case and the terminals for deformation and corrosion. OK: No deformation or corrosion. (e) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Make sure that there is no looseness at the locking part and the connecting part of the connector. OK: The connector is securely connected. (b) Disconnect the A35 skid control ECU (brake booster with master cylinder assembly) connector. (c) Check both the connector case and the terminals for deformation and corrosion. OK: No deformation or corrosion. (d) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Turn on the interior lights and check that they illuminate, and then set the switch so that the lights illuminate when the door is opened. (b) Check that the lights illuminate when the driver side door is opened. OK: The interior lights illuminate when the driver side door is opened.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Refrigerant: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET HINT: The following examples show the readings of a manifold gauge set and the corresponding air conditioning system problems. (a) Read the manifold gauge pressure when the following conditions are met: The doors ...
