Kia Optima Hybrid: Indicators And Gauges / Instrument Cluster Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Body Electrical System / Indicators And Gauges / Instrument Cluster Repair procedures

Inspection

NO	Ref Symbol	Name	Signal Input Message Name	Signal control Signal Value (X: Don’t care)	Illumination/ Power
1		Turn Left	B-CAN	Turn LH Signal Lamp Switch Status for indicator in CLU	LED/ B+
2		Turn Right	B-CAN	Turn RH Signal Lamp Switch Status for indicator in CLU	LED/ B+
3		Front Fog	B-CAN	Front Fog ON	LCD/ B+
4	-	Rear Fog	B-CAN	Rear Fog IND	LED/ IGN1
5		High Beam	B-CAN	Head Lamp High ON	LED/ B+
6		Seat Belt	B-CAN	Driver Seat Belt IND	LED/ IGN1
7		Door Open	B-CAN	Driver Door Switch Assist Door Switch RR Door Switch RL Door Switch C_DRIVETYPE (0h:LHD,1h:RHD)	LED/B+ TFT LCD/IG
8		Trunk Open	B-CAN	Tail Gate Switch	LED/B+ TFT LCD/IG
9		Immobilizer	Hardwire (SMK)	Input terminal is GND	LED/ B+
9		Immobilizer	C-CAN (EMS)	EMS Immo Lamp (Non-SMK)	LED/ IG+
10		ABS	C-CAN TCS	ABS Warning Lamp	LED/ IG+
11		Parking Brake	C-CAN TCS	Brake Warning Lamp	LED/ IG+
			B-CAN	Parking Brake Switch Brake Fluid Switch
			Brake Fluid Sensor (Hard wire)	Input terminal is GND
			AHB	AHB Warning Lamp
12		ESC	C-CAN TCS	Brake TCS Lamp	LED/ IG
13		ESC OFF	C-CAN TCS	Brake TCS Warning Lamp	LED/ IG
14		Air Bag	C-CAN ACU	Active circuit	LED/ Air/B+-
15		Oil Pressure	Hardwire	Input terminal is GND ISG control(MICOM)	LED/ IG
16		Alternator	C-CAN LDC	LDC Aux Bat Warning Lamp	LED/ IG
17		Check Engine	C-CAN EMS	EMS Mil Request	LED/ IG
18		Low Fuel	When LOW FUEL resistance is inputted	MCU Control	LED/ IG
19	CRUISE	CRUISE	C-CAN HCU	HCU Cruise On Lamp	LCD/ IG
20	SET	SET	C-CAN HCU	HCU Cruise Set Lamp	LCD/ IG
21		TPMS (TREAD)	C-CAN TPMS	TPMS Tread Warning Lamp	LED, Dispaly/ IG
21		TPMS Fail	C-CAN TPMS	TPMS Warning Lamp	LED/ IG
22		Tail Lamp	B-CAN	INT Tail Act	LCD/ B+
23	EPS	EPS (MDPS)	C-CAN MDPS	MDPS Warning Lamp	LED/ IG
24		HIGH TEMP WARNING	C-CAN EMS	EMS Eng Cool Temp	LED/ IG
25		SERVICE	C-CAN HCU	HCU Service Lamp	LED/ IGN
			MCU	MCU Service Lamp GCU Service Lamp
			BMS	BMS Service Lamp
			LDC	LDC Service lamp Request
			TCU	TCU Service Lamp
			OPU	OPU Service Lamp
26	-	READY	C-CAN HCU	HCU HEV Ready	LCD/ IGN
27	-	Washer Low	Hardwire	MCU Control SYMBOL (x), Display	Display/IG+
28	-	AAF	AAF	AAF Warning Lamp	Display/IG+
29	-	AHB	AHB	AHB Warning MSG	Display/IG+
30	-	LDC		LDC Aux Bat Warning Alarm	Display/IG+
31		EV MODE	HCU	HCU HEV Ready	LED/ IG+

Speedometer

1.	Adjust the pressure of the tires to the specified level.

2.	Drive the vehicle onto a speedometer tester. Use wheel chocks (A) as appropriate.

Check if the speedometer indicator range is within the standard values.

Do not operate the clutch suddenly or increase/ decrease speed rapidly while testing.

Tire wear and tire over or under inflation will increase the indication error.

[Canada - km/h]

Velocity (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]

Velocity (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

Fuel Gauge

1.	Disconnect the fuel sender connector from the fuel sender.

2.	Connect a 3.4 watt, 12V test bulb to terminals 1 and 3 on the wire harness side connector.

3.	Turn the ignition switch to the ON, and then check that the bulb lights up and the fuel gauge needle moves to full.

Main Fuel Gauge Sender

Using an ohmmeter, measure the resistance between terminals 1 and 3 of sender connector (A) at each float level.

NO	Description	NO	Description
1	Gauge signal GND	4	Fuel pump (+)
2	-	5	Fuel pump GND
3	Gauge signal (+)	-	-

Also check that the resistance changes smoothly when the float is moved from "E" to "F"

[Supervision]

Position	Liter (?)	U.S. gal.	Resistance (?)
Warning lamp blink	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?

If the height resistance is unsatisfied, replace the fuel sender as an assembly.

After completing this test, wipe the sender dry and reinstall it in the fuel tank.

Engine Coolant Temperature Sender

1.	Information of engine coolant temperature is inputed via CAN communication and displayed on cluster LCD.

Engine coolant temperature specification

Temperature	Gauge Segment	Remarks
[°F(°C)]	Gauge Segment	Remarks
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	Warning ON

Brake Fluid Level Warning Switch

1.	Remove the connector (A) from the switch located at the brake fluid reservoir.

2.	Verify that continuity exists between switch terminals 1 and 2 while pressing the switch (float) down with a rod.

Brake Fluid Level Warning Lamp

1.	Ignition "ON"

2.	Release the parking brake.

3.	Remove the connector from the brake fluid level warning switch.

4.	Ground the connector at the harness side.

5.	Verify that the warning lamp lights.

Parking Brake Switch

The parking brake switch (A) is a pulling type. It is located under the parking brake lever. To adjust, move the switch mount up and down with the parking brake lever released all the way.

1.	Check that there is continuity between the terminal and switch body with the switch ON (Lever is pulled).

2.	Check that there is no continuity between the terminal and switch body with the switch OFF (Lever is released). If continuity is not as specified, replace the switch or inspect its ground connection.

Door Switch

Remove the door switch and check for continuity between the terminals.

Seat Belt Switch

1.	Remove the connector from the switch.

Check for continuity between terminals.

Seat belt condition	Continuity
Fastened	Non-conductive (??)
Not fastened	Conductive (?)

Seat Belt Warning Lamp

With the ignition switch turned ON, verify that the lamp glows.

Seat belt condition	Warning lamp
Fastened	OFF
Not fastened	ON

Removal

•	Take care not to scratch the center fascia panel and related parts.

•	Eject all the disc before removing the audio unit to prevent damaging the CD player''s load mechanism.

1.	Disconnect the negative (-) battery terminal.

Using a screwdriver or remover, remove the crash pad garnish RH (A).

Apply the protective tapes to crash pad garnish and its related parts.

3.	Using a screwdriver or remover, remove the crash pad side cover (A).

4.	After loosening the crash pad lower panel mounting screws, then remove the lower panel (A).

5.	Remove the switch connector (A) and SSB connector (B) from crash pad lower panel.

6.	Remove the crash pad garnish LH (A) after removing the screws.

7.	Remove the instrument cluster fascia panel (A) after loosening the screws.

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 to the cluster housing.

2.	Install the cluster fascia panel and crash pad side garnish [LH].

3.	Install the crash pad lower pannel and side cover.

4.	Install the side pad garnish [RH].

Instrument Cluster Schematic Diagrams

Circuit Diagram ...

Trip Switch Schematic Diagrams

Circuit Diagram ...

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