Kia Optima Hybrid Owner's Manual Quiz
Body Electrical System

Instrument Cluster Repair Procedures

In this manual: Body Electrical System
General Information — 4Engine Mechanical System — 50Engine Electrical System — 20Emission Control System — 30Engine Control System/Fuel System — 84Automatic Transmission — 98Drive Shaft and Axle — 15Suspension System — 36Steering — 12Restraints — 50Brake System — 38Body (Interior and Exterior) — 54Body Electrical System — 233Heating, Ventilation, and Air Conditioning — 57
35steps
~210min
4/5difficulty
Done 0 of 35

Inspection

NO Reference
Symbol		 Name Input Signal
Message Name		 Signal Control
Signal Value
(X: Don't care)		 Lighting/
Power
1
Turn
Left		 B-CAN Turn left signal lamp switch status for indicator in CLU BEL/
B+
2
Turn
Right		 B-CAN Turn right signal lamp switch status for indicator in CLU BEL/
B+
3
Front
Fog		 B-CAN Front fog lamps ON LCD/
B+
4 - Rear
Fog		 B-CAN Rear fog IND BEL/
IGN1
5
High
Beam		 B-CAN High beam ON BEL/
B+
6
Seat
Belt		 B-CAN Driver seat belt IND BEL/
IGN1
7
Door
Open		 B-CAN Driver Door Switch
Auxiliary Door Switch
RR Door Switch
RL Door Switch
C_DRIVETYPE
(0 o'clock: LHD, 1 o'clock: RHD)		 LED/B+
TFT LCD/IG
8
Trunk
Open		 B-CAN Liftgate Switch LED/B+
TFT LCD/IG
9
Immobilizer Hard Wire
(SMK)		 Input Terminal - Ground BEL/
B+
C-CAN
(ambulance)		 EMS Immobilizer Lamp
(not SMK)		 BEL/
IG+
10
ABS C-CAN
TCS		 ABS Warning Lamp BEL/
IG+
11
Parking
Brake		 C-CAN
TCS		 Brake Warning Light BEL/
IG+
B-CAN Parking Brake Switch
Brake Fluid Switch
Brake Fluid Sensor
(hard wire)		 Input Terminal - Ground
AHB AHB Indicator Lamp
12
ESC C-CAN
TCS		 TCS Brake Lamp BEL/
IG
13
OFF TCS Brake System Warning Lamp BEL/
IG
14
Air Bag C-CAN
ACU		 Active Circuit BEL/
Air/B+-
15
Oil
Pressure		 Hard Wire Input Terminal - Ground
ISG Control (MICOM)		 BEL/
IG
16
Generator C-CAN
HCU		 LDC Aux Battery Signal Lamp BEL/
IG
17
Check
Engine		 C-CAN
ambulance		 EMS MIL Request BEL/
IG
18
Low Fuel When LOW FUEL resistance is entered Microcontroller Control BEL/
IG
19 CRUISE CRUISE C-CAN
HCU		 HCU Cruise Lamp LCD /
IG
20 SET SET HCU Cruise Control Set Lamp LCD /
IG
21
SCDP
(PROTECTION)		 C-CAN
SCDP		 TPMS Protector Warning Lamp LED Display /
IG
SCDP
Failure		 TPMS Warning Lamp BEL/
IG
22
Tail
Lamp		 B-CAN Tail Law INT LCD/
B+
23 EPS EPS
(MDPS)		 C-CAN
MDPS		 MDPS Warning Lamp BEL/
IG
24
HIGH TEMP
WARNING		 C-CAN
ambulance		 EMS Eng Cool Temp BEL/
IG
25
SERVICE C-CAN
HCU		 HCU Service Lamp BAT /
IGN
MCU Microcontroller Service Lamp
GCU Service Lamp
BCM BMS Service Lamp
HCU LDC Service Lamp Request
TCU TCU Service Lamp
EPS OPU Service Lamp
26 - READY C-CAN
HCU		 HCU HEV Ready LCD /
IGN
27 - Washer
Low		 Hard Wire Microcontroller Control
SYMBOL (x), Display		 Display / IG+
28 - AAF AAF AAF Warning Lamp Display / IG+
29 - AHB AHB AHB MSG Warning Display / IG+
30 - HCU LDC Aux Bat Warning Buzzer Display / IG+
31
Electric Vehicle
MODE		 HCU HCU HEV Ready BEL/
IG+

Speedometer
  1. Adjust the tire pressure to the specified level.
  2. Drive the vehicle onto the speedometer tester. Use wheel chocks (A) as necessary.
  3. Check that the speedometer reading is within the standard values.
    Do not engage the clutch abruptly or increase/decrease speed during the inspection.
    Tire wear and excessive or insufficient tire pressure increase the indication error.
    [Canada - km/h]
    Speed
    (km/h)    		 Tolerance (km/h)
    20 +2,20
    +0,20
    40 +2,30
    +0,30
    60 +2,50
    +0,50
    80 +3,20
    +0,70
    100 +4,00
    +1,00
    120 +4,50
    +1,50
    140 +5,00
    +2,00
    160 +5,50
    +2,50
    180 +7,00
    +3,00
    200 +7,50
    +3,50
    220 +8.00
    +4,00
    240 +8,50
    +4,50
    260 +9.00
    +5,00

    [USA – mph]
    Speed
    (km/h)    		 Tolerance (km/h)
    20 +1,7
    +0,2
    40 +1,8
    +0,3
    60 +2,6
    +0,6
    80 +3,3
    +0,8
    100 +3,8
    +1,3
    120 +4,8
    +1,8
    140 +5,3
    +2,3
    160 +5,8
    +2,8
  4. Disconnect the fuel level sender connector from the fuel level sender.
  5. Connect a 12 V, 3.4 W test lamp to terminals 1 and 3 on the harness-side connector.
  6. Turn the ignition ON, then check that the lamp illuminates and the fuel gauge needle is at the maximum mark.
  7. Using an ohmmeter, measure the resistance between terminals 1 and 3 of the sender connector (A) at each float level.
    NO Description NO Description
    1 Sensor GND Signal 4 Fuel pump (+)
    2 - 5 Fuel Pump Ground
    3 Sensor Signal (+) - -
  8. Also check that the resistance changes smoothly when the float moves from the "E" position to the "F" position. [Monitor]
    Position Liter
    (?)    		 USA Gal. Resistance
    (?)
    Warning Lamp Flashes 5 1,32 200+5/-2?
    1/12 (E) 8,5 2,24 170±2?
    6/12 35 9.24 72,7?
    12/12 (F) 66 17,4 8±1?
  9. If the resistance is out of specification, replace the fuel level sender assembly.
    After completing this inspection, wipe the sender dry and reinstall it in the fuel tank.
  10. Engine coolant temperature information is input via the CAN bus and displayed on the LCD of the instrument cluster.
  11. Engine Coolant Temperature Specification
    Temperature Calibration Segment Notes
    [°F(°C)]
    131(55) SEG1 ?
    160(71) SEG5 ?
    230(110) SEG5 ?
    242,6 (117) SEG9 Warning OFF
    249,35 (120,75) SEG11 Warning ON
    256,1 (124,5) SEG12
  12. Disconnect the connector (A) from the switch located on the brake fluid reservoir.
  13. Check for continuity between terminals 1 and 2 of the switch while pressing the switch (float) with a rod.
  14. Ignition switch ON
  15. Release the parking brake.
  16. Disconnect the connector from the brake fluid level warning switch.
  17. Ground the harness-side connector.
  18. Check that the warning lamp illuminates.
  19. Check for continuity between the terminal and the switch body with the switch ON (lever pulled up).
  20. Check that there is no continuity between the terminal and the switch body with the switch OFF (lever released). If continuity does not match the specification, replace the switch or check its ground.
  21. Disconnect the connector from the switch.
  22. Check the circuit between the terminals for continuity.
    Seat Belt Status Continuity
    Fastened Non-conductive (??)
    Unfastened Conductive (?)

Fuel Level Gauge, Main Fuel Level Sensor, Engine Coolant Temperature Sensor, Brake Fluid Level Warning Switch, Brake Fluid Level Warning Lamp, Parking Brake Switch. Parking Brake Switch (A) is pull type. It is located under the parking brake lever. To adjust, move the switch bracket up and down with the parking brake lever fully released. Door Switch: Remove the door switch and check continuity between the terminals. Seat Belt Switch, Seat Belt Warning Lamp: With the ignition ON, make sure the lamp illuminates.
Seat Belt Status Indicator Lamp
Fastened OFF
Unfastened ON

Removal
  • Be careful not to scratch the center fascia and related parts.
  • Eject the disc completely before removing the audio unit to avoid damaging the CD player loading mechanism.
  1. Disconnect the negative (-) battery terminal.
  2. Using a screwdriver or removal tool, remove the right garnish (A).
    Apply protective tape to the airbag trim and related components.
  3. Using a screwdriver or pry tool, remove the crash pad side cover (A).
  4. After loosening the mounting screws, remove the airbag lower panel (A).
  5. Disconnect the switch connector (A) and SSB connector (B) from the airbag lower panel.
  6. After removing the screws, remove the left garnish (A).
  7. After loosening the screws, remove the instrument cluster front panel (A).
  8. Remove the instrument cluster (A) after loosening the screws.
  9. Disconnect the cluster connector (A), then remove the cluster.

Installation

  1. Install the cluster into the cluster housing.
  2. Install the instrument cluster front panel and the side trim of the airbag [LH].
  3. Install the airbag lower panel and side cover.
  4. Install the side garnish trim [RH].

Test yourself

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