Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Kia >> 2018 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Brake System (PHEV)) >> Stop Lamp Switch >> Repair Procedures >> Inspection

Repair Procedures: Inspection

WARNING: This page is about a different car, the 2017 Kia Optima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Fuse Inspection 

    Mount the test fuse to the switch fuse and relay fuse part to confirm a normal joint fit.

    G12357760Courtesy of KIA MOTORS AMERICA, INC.
    G12357761Courtesy of KIA MOTORS AMERICA, INC.
  2. GDS Data Analysis 
    1. Analyze GDS data and confirm if there is anything wrong with the stop lamp switch.
    1. Connect the GDS to the self-diagnosis connector.
    2. Turn the spark switch on
    3. Step on the brake pedal.
    4. Inspect the "brake switch" category that displays the "sensor data" GDS.)

      Normal Waveform  : The pressure sensor signal value will change according to the brake ON/OFF switch.

    G12357762Courtesy of KIA MOTORS AMERICA, INC.
  3. Inspection Of Connector By Each Part 

    Check to see whether or not each connector has been damaged, or terminal surge, or incomplete connection has taken place

    [Engine Room Junction Box] 

    G12357763Courtesy of KIA MOTORS AMERICA, INC.

    [Stop Signal Electronic Module] 

    G12357764Courtesy of KIA MOTORS AMERICA, INC.

    [ABS/VDC Control Module] 

    G12357765Courtesy of KIA MOTORS AMERICA, INC.
  4. Inspect The Stop Lamp Circuit 

Connect probe to each terminal wire and confirm oscilloscope waveform.

[Stop Lamp Switch Input/Output] 

G12357766Courtesy of KIA MOTORS AMERICA, INC.

[Stop Signal Electronic Module Input/Output] 

G12357767Courtesy of KIA MOTORS AMERICA, INC.

[Oscilloscope Waveform Screen] 

G12357768Courtesy of KIA MOTORS AMERICA, INC.