INSTRUMENTATION/DRIVER INFO > Combination Meter System

1. SELF-DIAGNOSIS

The self-diagnosis (checking of each meter, warning light, indicator, illumination, LCD) of combination meter can be performed in the following procedure.

NOTE:

Perform the steps described in 2) and 4) within 10 seconds.

1. Within 3 seconds after turning the ignition switch to ON, set the lighting switch to tail light or headlight position.

2. Press the odo/trip meter knob three times.

3. Turn the lighting switch to OFF, and press the odo/trip meter knob three times.

4. Set the lighting switch to tail light or headlight position again, and press the odo/trip meter knob three times.

NOTE:

• When pressing the odo/trip meter knob four times, the display changes to DTC display mode.

• Warning light, indicator, and LCD display checks are performed when self-diagnosis is performed. After this, every time the odo/trip meter knob is pressed, the buzzer will sound for 0.5 seconds, and operation checks for meter operation, meter readings, and the LCD are performed in this order. Turn the ignition switch to OFF to cancel the self-diagnosis function.

• The self-diagnosis function is not cancelled if the engine is started during diagnosis. However, the self-diagnosis function is cancelled automatically for safety when you start to drive the vehicle.

5. Go to “Check meter indicator operation”.

Check meter operation, warning lights, indicator lights and LCD.

Meter indicator	LCD display, illumination	Warning light, indicator light
MIN indication ↓ MAX indication	ILL1 (Min. brightness) ↓(Displayed for one second for each level) ILL6 (Max. brightness)	Light ON Engine coolant temperature warning light color is red. (Non-turbo model)
MAX indication ↓ MIN indication	ILL6 (Max. brightness) ↓(Displayed for one second for each level) ILL1 (Min. brightness)

Meter indicator

LCD display, illumination

Warning light, indicator light

MIN indication

↓

MAX indication

ILL1 (Min. brightness)

↓(Displayed for one second for each level)

ILL6 (Max. brightness)

Light ON

Engine coolant temperature warning light color is red. (Non-turbo model)

MAX indication

↓

MIN indication

ILL6 (Max. brightness)

↓(Displayed for one second for each level)

ILL1 (Min. brightness)

6. Press the odo/trip meter knob once.

7. Go to “Check meter indication”.

Check meter operation, warning lights, indicator lights and LCD.

NOTE:

• Meter indicator switches every 1.5 seconds for each indication.

• ILL indication illuminates at the same brightness as when entering “Check meter indication”.

Speedometer (km/h)	Tachometer (rpm)	Fuel gauge	Engine coolant temperature gauge (Turbo model)	Low fuel warning light	Warning light, indicator light
0	0	Lowest point	Lowest point	Light ON	Light OFF Engine coolant temperature indicator light color blue. (Non-turbo model)
0	0	E	C	Light ON
40	1000	1/2	1/2	Light OFF
100	4000	F	H	Light OFF
40	1000	1/2	1/2	Light OFF
0	0	E	C	Light ON

8. Press the odo/trip meter knob once.

9. Go to “Check LCD display”.

Check the LCD.

NOTE:

• All warning and indicator lights go off.

• The meter indication remains at the same level as “Check meter indication”.

• ILL indication illuminates at ILL6 level (max. brightness).

Illuminating order	1	2	3	4	5	6	7	8	9	10	11	12	13	Go back to 1 and repeat.
ODO, TRIP A/B	All lights ON	All lights OFF	ODO	All lights OFF	TRIP A	All lights OFF	TRIP B	All lights OFF	All lights OFF	All lights OFF	TRIP A	All lights OFF	TRIP B
Odo/trip meter	88888.8	111111	22222.2	333333	44444.4	555555	66666.6	777777	88888.8	999999	00000.0	888888	88888.8
AT shift indicator	All lights ON	1	2	3	4	5	6	7	P	R	N	D	E
		All lights OFF		All lights OFF		All lights OFF		All lights OFF		All lights OFF		All lights OFF
		All lights OFF		All lights OFF		All lights OFF		All lights OFF		All lights OFF		All lights OFF

2. SYMPTOM CHART

Symptoms	Repair order	Reference
Combination meter assembly does not operate.	(1) Power supply (2) Ground circuit (3) Combination meter
Speedometer does not operate.	(1) ABS C/M or VDC C/M (2) Harness (3) Combination meter
Tachometer does not operate.	(1) ECM (2) Harness (3) Combination meter
Fuel gauge does not operate.	(1) Communication circuit (2) Fuel level sensor (3) Harness (4) Combination meter
Engine coolant temperature gauge does not operate.	(1) Communication circuit (2) Engine coolant temperature sensor (3) Harness (4) Combination meter

CAUTION:

When measuring the voltage and resistance of each control module or sensor, use a tapered pin with a diameter of less than 0.64 mm (0.025 in) in order to avoid poor contact. Do not insert the pin more than 2 mm (0.08 in).

3. CHECK POWER SUPPLY AND GROUND CIRCUIT

STEP	CHECK	YES	NO
1.CHECK POWER SUPPLY FOR COMBINATION METER. 1) Remove the combination meter. 2) Disconnect the combination meter harness connector. 3) Turn the ignition switch to ON. 4) Measure the voltage between combination meter connector and chassis ground. Connector & terminal (i10) No. 2 (+) — Chassis ground (−):	Is the voltage 10 V or more?		Check the harness for open or short between the ignition switch and combination meter.
2.CHECK POWER SUPPLY FOR COMBINATION METER. Measure the voltage between combination meter connector and chassis ground. Connector & terminal (i10) No. 1 (+) — Chassis ground (−):	Is the voltage 10 V or more?		Check the harness for open or short between the fuse and combination meter.
3.CHECK GROUND CIRCUIT OF COMBINATION METER. 1) Turn the ignition switch to OFF. 2) Measure the resistance of harness between combination meter connector and chassis ground. Connector & terminal (i10) No. 21 — Chassis ground: (i10) No. 22 — Chassis ground:	Is the resistance less than 10 Ω?	Replace the meter case assembly.	Repair the wiring harness.

4. CHECK THE ABSCM OR VDCCM

STEP	CHECK	YES	NO
1.CHECK VEHICLE SPEED SIGNAL. 1) Lift up the vehicle and support it with rigid racks. 2) Drive the vehicle faster than 10 km/h (6 MPH). WARNING: Be careful not to get caught in the running wheels. 3) Measure the voltage between combination meter connector and chassis ground. Connector & terminal (i10) No. 31 (+) — Chassis ground (−):	Is the voltage less than 1 V ←→ 5 V or more?	Replace the meter case assembly.
2.CHECK HARNESS BETWEEN ABSCM OR VDCCM AND COMBINATION METER. 1) Turn the ignition switch to OFF. 2) Disconnect the connector from ABSCM or VDCCM and combination meter. 3) Measure the resistance between ABSCM or VDCCM harness connector and the combination meter harness connector. Connector & terminal Model without VDC (B301) No. 23 — (i10) No. 31: Model with VDC (B310) No. 33 — (i10) No. 31:	Is the resistance less than 10 Ω?	Model without VDC: Check the ABSCM. Model with VDC: Check the VDCCM.	Repair the wiring harness.

5. CHECK ENGINE CONTROL MODULE (ECM)

STEP	CHECK	YES	NO
1.CHECK ECM SIGNAL. 1) Start the engine. 2) Measure the voltage between ECM connector and chassis ground. Connector & terminal Non-turbo model (B135) No. 25 (+) — Chassis ground (−): Turbo model (B136) No. 22 (+) — Chassis ground (−):	Is the voltage 0 ←→ 14 V or more?		Inspect the ECM.
2.CHECK HARNESS BETWEEN COMBINATION METER AND ECM. 1) Turn the ignition switch to OFF. 2) Disconnect the connector from ECM and combination meter. 3) Measure the resistance between ECM harness connector and combination meter harness connector. Connector & terminal Turbo model (B136) No. 22 — (i10) No. 32: Non-turbo model (B135) No. 25 — (i10) No. 32:	Is the resistance less than 10 Ω?	Replace the meter case assembly.	Repair the wiring harness.

6. CHECK FUEL LEVEL SENSOR

STEP	CHECK	YES	NO
1.CHECK COMMUNICATION. 1) Connect the Subaru Select Monitor, and turn the ignition switch and the Subaru Select Monitor to ON. 2) Read the DTC of the body integrated unit.	Is DTC being displayed?	Perform the diagnosis according to DTC.
2.CHECK COMBINATION METER. 1) Remove the fuel sub level sensor. 2) Using suitable lead wires and a 2 — 6 Ω resistor, short circuit the fuel sub level sensor connector to chassis ground. 3) Turn the ignition switch to ON. Terminals (R59) No. 1 — Chassis ground:	Does the fuel gauge in the combination meter indicate FULL mark?		Inspect harnesses for open or shorting condition. If there is no fault, replace the meter case assembly.
3.CHECK FUEL LEVEL SENSOR. 1) Remove the fuel level sensor. 2) Measure the resistance between fuel level sensor terminals when the float is in FULL or EMPTY position. Terminals (R58) No. 1 — No. 4:	Is the resistance 1.0 to 3.0 Ω (FULL) and 31 to 33 Ω (EMPTY)?		Replace the fuel level sensor.
4.CHECK FUEL SUB LEVEL SENSOR. 1) Remove the fuel sub level sensor. 2) Measure the resistance between fuel sub level sensor terminals when the float is in FULL or EMPTY position. Terminals (R59) No. 1 — No. 2:	Is the resistance 1.0 to 3.0 Ω (FULL) and 61 to 63 Ω (EMPTY)?		Replace the fuel sub level sensor.
5.CHECK HARNESS BETWEEN FUEL SUBLEVEL SENSOR AND BODY INTEGRATED UNIT. 1) Disconnect the connector from body integrated unit. 2) Measure the resistance between fuel sub level sensor harness connector terminal and body integrated unit harness connector terminal. Connector & terminal (R59) No. 1 — (B281) No. 7:	Is the resistance less than 10 Ω?		Repair the wiring harness.
6.CHECK HARNESS BETWEEN FUEL LEVEL SENSOR AND FUEL SUB LEVEL SENSOR. Measure the resistance between fuel level sensor harness connector terminal and fuel sub level sensor harness connector terminal. Connector & terminal (R58) No. 1 — (R59) No. 2:	Is the resistance less than 10 Ω?		Repair the wiring harness.
7.CHECK FUEL LEVEL SENSOR GROUND CIRCUIT. Measure the resistance between fuel level sensor harness connector terminal and chassis ground. Connector & terminal (R58) No. 4 — Chassis ground:	Is the resistance less than 10 Ω?	Replace the meter case assembly.	Repair the wiring harness.

7. CHECK ENGINE COOLANT TEMPERATURE SENSOR

STEP	CHECK	YES	NO
1.CHECK COMMUNICATION. 1) Connect the Subaru Select Monitor, and turn the ignition switch and the Subaru Select Monitor to ON. 2) Read the DTC of the body integrated unit.	Is DTC being displayed?	Perform the diagnosis according to DTC.
2.CHECK ENGINE COOLANT TEMPERATURE SENSOR. Check the engine coolant temperature sensor.	Is the engine coolant temperature sensor OK?	Replace the meter case assembly.	Replace the engine coolant temperature sensor.

8. DTC DISPLAY MODE

The combination meter DTC can be displayed according to the following procedure.

NOTE:

Perform the steps described in 2) and 4) within 10 seconds.

1. Within 3 seconds after turning the ignition switch to ON, set the lighting switch to tail light or headlight position.

2. Press the odo/trip meter knob four times.

3. Turn the lighting switch to OFF, and press the odo/trip meter knob four times.

4. Set the lighting switch to tail light or headlight position again, and press the odo/trip meter knob four times.

NOTE:

• When the engine starts during diagnosis, the self-diagnosis function is not cancelled, however, once ignition switch is turned OFF or the vehicle is driven, the DTC display mode is cancelled automatically for safety.

• When the DTC display mode operates, the display is changed every 3 seconds or {ECM}, {TCM}, {ABS/VDC} is displayed cyclically in this order for every press of the trip knob. DTC is displayed in the following table according to type of control module, receiving DTC, DTC detected, No DTC.

• When the DTC of individual control modules changes in status from current trouble to past trouble, and the trouble is fixed, the DTC will no longer appear in the combination meter if the engine is started three times or more. In this case, read the DTC using the Subaru Select Monitor.

Control module	Condition	Display
ECM	Receiving DTC	Trip “A” + “P (Blink)”
	DTC detected	Trip “A” + “P xxxx”
	No DTC	Trip “A” + “P ----”
TCM	Receiving DTC	Trip “B” + “P (Blink)”
	DTC detected	Trip “B” + “P xxxx”
	No DTC	Trip “B” + “P ----”
ABS/VDCCM	Receiving DTC	Trip “A” + “C (Blink)”
	DTC detected	Trip “A” + “C xxxx”
	No DTC	Trip “A” + “C ----”
When CAN communication error is occurred	—	“ ----- ”

NOTE:

As MT model is not equipped with TCM, only “Receiving DTC” is displayed.