Body Electrical System

Repair Procedures

16steps
~96min
4/5difficulty
Done 0 of 16

Inspection

Light Switch Inspection: With the combination switch in each position, make sure continuity exists between the terminals below. If continuity is not as specified, replace the combination switch.
Light Switch (Automatic Lighting)
Light Switch
Dimmer and Passing Switch
HU: High Beam HL: Low Beam P: Headlight Switch Turn Signal Switch
Front Fog Light Switch
Wiper and Washer Switch Inspection: With the combination switch in each position, make sure continuity exists between the terminals below. If continuity is not as specified, replace the combination switch.
Wiper Switch
Washer Switch

Inspection (with GDS)

  1. Check the BCM input/output specification of the multifunction switch using GDS. If the specification is not normal, replace the lamp or wiper switch.
  2. If diagnosis of the multifunction switch is required, select the model and "BCM".
  3. To view the BCM input/output current data, select "Current Data". Provides information on the BCM input/output states: power, turn signal/stop lamp, headlamp, door, locks, outside mirror, wiper, auto light and transmitters, etc.
  4. To perform a forced actuation of BCM input factors, select "ACTUATION TEST".

Removal

  1. Disconnect the negative (-) battery terminal.
  2. Remove the steering wheel. (Refer to Group ST - "Steering Column and Shaft")
  3. Remove the upper and lower steering column shrouds by removing the 3 screws.
  4. If removal is necessary, release the wiper and washer switch lock (A) only with a tool, without removing the steering wheel and clock spring.
  5. Disconnect the light switch connector (A) and the wiper and washer switch connector (B).
  6. Remove the steering wheel. (Refer to Group ST - "Steering Column and Shaft")
  7. Remove the clock spring. (Refer to RT group - "Airbag Module")
  8. Remove the multifunction switch assembly (A) after loosening the mounting screws.

Installation

  1. Install the multifunction switch.
  2. Install the clock spring.
  3. Install the upper and lower steering column covers.
  4. Install the steering wheel.
    Make sure the multifunction switch connectors are connected correctly.

Test yourself

A quick Kia Optima Hybrid Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.