DESCRIPTIONThe skid control ECU (brake actuator assembly) inputs the stop light signal and brake operation condition. When the brake pedal is depressed and the stop light switch signal is not input, this DTC is output.
WIRING DIAGRAMRefer to DTC C13807E. CAUTION / NOTICE / HINTNOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE
OK: The brake pedal height and stop light switch assembly installation are normal. HINT: If the on/off status of the stop light switch assembly and the pressure increase information from the master cylinder pressure sensor do not match due to an improperly installed brake pedal or stop light switch assembly, this DTC may be stored. Therefore, be sure to check the installation condition of the pedal and stop light switch assembly before inspecting the input signals and other related parts.
(a) Check that the stop lights come on when the brake pedal is depressed, and go off when the brake pedal is released. OK:
(a) Check that the stop light switch display observed on the GTS change according to brake pedal operation. Chassis > Brake/EPB > Data List
Chassis > Brake/EPB > Data List
OK: The GTS displays OFF / ON according to brake pedal operation.
(a) Clear the DTCs. Chassis > Brake/EPB > Clear DTCs(b) Turn the ignition switch off.
(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred. (b) Check if the same DTC is output. Chassis > Brake/EPB > Trouble Codes
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors. OK: The connector is securely connected. (c) Disconnect the A140 skid control ECU (brake actuator assembly) connector. (d) Check both the connector case and the terminals for deformation and corrosion. OK: No deformation or corrosion. (e) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(a) Reconnect the A140 skid control ECU (brake actuator assembly) connector. (b) Clear the DTCs. Chassis > Brake/EPB > Clear DTCs(c) Turn the ignition switch off.
(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred. (b) Check if the same DTC is output. Chassis > Brake/EPB > Trouble Codes
OK: The stop light switch assembly is normal.
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors. OK: The connector is securely connected. (c) Disconnect the A140 skid control ECU (brake actuator assembly) connector. (d) Check both the connector case and the terminals for deformation and corrosion. OK: No deformation or corrosion. (e) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(a) Reconnect the A140 skid control ECU (brake actuator assembly) connector. (b) Clear the DTCs. Chassis > Brake/EPB > Clear DTCs(c) Turn the ignition switch off.
(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred. (b) Check if the same DTC is output. Chassis > Brake/EPB > Trouble Codes
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