Subaru Impreza 2003, Service Manual

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EN(H4DOTC)-33
ENGINE (DIAGNOSTICS)
SUBARU SELECT MONITOR
4. READ CURRENT DATA FOR ENGINE. (NORMAL MODE)
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen, select the {Engine Control System} and press the [YES]
key.
3) Press the [YES] key after the information of engine type is displayed.
4) On the «Engine Diagnosis» display screen, select the {Current Data Display & Save} and press the [YES]
key.
5) On the «Data Display Menu» display screen, select the {Data Display} and press the [YES] key.
6) Using the scroll key, move the display screen up or down until desired data is shown.
• A list of the support data is shown in the following table.
Contents Display Unit of measure
Battery voltage Battery Voltage V
Vehicle speed signal Vehicle Speed km/h or MPH
Engine speed signal Engine Speed rpm
Engine coolant temperature signal Coolant Temp.
°
C or
°
F
Ignition timing signal Ignition Timing deg
Throttle position signal Throttle Opening Angle %
Throttle position signal Throttle Sensor Voltage V
Injection pulse width Fuel Injection #1 Pulse ms
Idle air control signal ISC Valve Duty Ratio %
Alternator duty control signal ALT Duty %
Fuel pump duty control signal Fuel Pump Duty %
A/F sensor current A/F Sensor #1 Current mA
A/F sensor resistance A/F Sensor #1 Resistance
Ω
Front oxygen (A/F) sensor output signal A/F Sensor #1 —
Rear oxygen sensor output signal Rear O
2
Sensor V
Short term fuel trim A/F Correction #1 %
Knock sensor signal Knocking Correction deg
Atmospheric absolute pressure signal Atmosphere Pressure mmHg or kPa or inHg or
psi
Intake manifold relative pressure signal Mani. Relative Pressure mmHg or kPa or inHg or
psi
Intake manifold absolute pressure signal Mani. Absolute Pressure mmHg or kPa or inHg or
psi
A/F correction (short term fuel trim) by rear oxygen sensor A/F Correction #3 %
Long term whole fuel trim A/F Learning #1 %
Front oxygen (A/F) sensor heater current A/F Heater Current 1 A
Rear oxygen sensor heater voltage Rear O
2
Heater Voltage V
Canister purge control solenoid valve duty ratio CPC Valve Duty Ratio %
Primary supercharged pressure control signal Primary Control %
Tumble generator valve position sensor signal (right side) TGV Position Sensor R V
Tumble generator valve position sensor signal (left side) TGV Position Sensor L V
Tumble generator valve drive signal TGV Drive OPEN or CLOSE
Fuel level signal Fuel Level V
Intake air temperature signal Intake Air Temp.
°
C or
°
F
Learned ignition timing Learned Ignition Timing deg
Mass air flow sensor signal Mass Air Flow g/s
Mass air flow sensor signal Air Flow Sensor Voltage V
Valve timing signal VVT Adv. Ang. Amount R deg
Valve timing signal VVT Adv. Ang. Amount L deg
Variable valve timing solenoid valve signal OCV Duty R %
Variable valve timing solenoid valve signal OCV Duty L %