Subaru IMPREZA 2002 Service Manual page 360

SUBARU SELECT MONITOR
ENGINE (DIAGNOSTICS)
Contents
Diagnostic trouble code (DTC) for freeze frame data
Air fuel ratio control system for bank 1
Engine load data
6. READ FREEZE FRAME DATA FOR ENGINE. (OBD 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.
Display Unit of measure
Freeze frame data DTC
Fuel system for Bank1
Enaine Load
%
ON or OFF
3) Press the [YES] key after displayed the information of engine type.
4) On the ((Engine Diagnosis)) display screen, select the {OBD System} and press the [YES] key.
5) On the ((OBD Menu)) display screen, select the {Freeze Frame Data} and press the [YES] key.
A list of the support data is shown in the following table.
Oxygen sensor for monitoring test
Rich to lean oxygen sensor threshold voltage
Lean to rich oxygen sensor threshold voltage
Low oxygen sensor voltage for switch time calculation
High oxygen sensor voltage for switch time calculation
Rich to lean oxygen sensor switch time
<02 Sensor Monitor (-------)>
-
Rich to lean sensor volt
Lean to rich sensor volt
V
V
Low sensor voltage V
High sensor voltage V
Rich to lean switch time sec
I
Engine coolant temperature signal
I
Coolant Temp.
I
"C or O F
Minimum oxygen sensor voltage for test cycle
I
Minimum sensor Voltage
I
Short term fuel trim by front oxygen (NF) sensor
I
Short term fuel trim B1
I
YO
V
I
Long term fuel trim by front oxygen (NF) sensor
I
Long term fuel trim B1
I
YO
I
Intake manifold absolute pressure signal
1
mmHg or kPa or inHg or
I
Mani. Absolute Pressure
DSi
I
Vehicle speed signal
I
Vehicle Speed
I
km/h or MPH
NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
7. READ OXYGEN SENSOR MONITORING TEST RESULTS DATA FOR ENGINE. (OBD
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 displayed the information of engine type.
4) On the ((Engine Diagnosis), display screen, select the {OBD System} and press the [YES] key.
5 ) On the ((OBD Menu)) display screen, select the ( 0 2 Sensor Monitor} and press the [YES] key.
6) On the ((02 Sensor Select)) display screen, select the {Bank 1-Sensorl} or {Bank 1-Sensor2) and press
the [YES] key.
Bank 1 -Sensor1 indicates the front oxygen or A/F sensor, and Bank 1 -Sensor2 indicates the rear oxygen
sensor.
A list of the support data is shown in the following table.
MODE)
Lean to rich oxygen sensor switch time
I
Lean to rich switch time
I
sec
I
Maximum oxygen sensor voltage for test cycle
I
Maximum sensor Voltage
I
V
I
NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
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