Engine General Information and Diagnosis: 1A-33
Scan Tool Data
S7RS0B1104007
As the data values are standard values estimated on the basis of values obtained from the normally operating vehicles
by using a scan tool, use them as reference values. Even when the vehicle is in good condition, there may be cases
where the checked value does not fall within each specified data range. Therefore, judgment as abnormal should not
be made by checking with these data alone.
Also, conditions that can be checked by the scan tool are those detected by ECM and output from ECM as commands
and there may be cases where the engine or actuator is not operating (in the condition) as indicated by the scan tool.
Be sure to use the timing light to check the ignition timing.
NOTE
• There are two types of OBD system depending on the vehicle specification.
For details, refer to “Precaution on On-Board Diagnostic (OBD) System”.
• With the generic scan tool, only star (*) marked data in the following table can be read.
• When checking the data with the engine running at idle or racing, be sure to shift M/T gear to the
neutral position and A/T gear to the “Park” position and pull the parking brake fully. Also, if nothing
or “no load” is indicated, turn OFF A/C (if equipped with A/C), all electric loads, P/S and all the other
necessary switches.
) P2122
Throttle/pedal position sensor/switch/“D” (main)
circuit low input
• ECM turns off throttle actuator control relay and
throttle valve is fixed at the specified opening from
its completely closed position (default opening).
For details, refer to “Description of Electric
Throttle Body System”.
• ECM controls fuel cut at specified engine speed.
• ECM stops air/fuel ratio control.
) P2123
Throttle/pedal position sensor/switch/“D” (main)
circuit high input
) P2127
Throttle/pedal position sensor/switch/“E” (sub)
circuit low input
) P2128
Throttle/pedal position sensor/switch/“E” (sub)
circuit high input
) P2135
Throttle/pedal position sensor/switch/“A”/“B”
(main) / (sub) voltage correction
) P2138
Throttle pedal position sensor/switch “D”/“E”
(main) / (sub) voltage correlation
) P2227 Barometric pressure sensor performance problem
ECM controls actuators assuming that barometric
pressure is 101.33 kPa (762 mmHg).
DTC No. Detected item Fail-safe operation
Scan tool data Vehicle condition
Normal condition /
reference values
* ) COOLANT TEMP At specified idle speed after warming up 80 – 100 °C, 176 – 212 °F
* ) INTAKE AIR TEMP. At specified idle speed after warming up
–5 °C (23 °F) + environmental
temp. to 40 °C (104 °F) +
environmental temp.
* ) ENGINE SPEED It idling with no load after warming up Desired idle speed ± 50 rpm
) INJ PULSE WIDTH
At specified idle speed with no load after warming up 2.0 – 4.0 msec.
At 2500 r/min. with no load after warming up 2.0 – 3.6 msec.
) DESIRED IDLE
It idling with radiator cooling fan stopped and all electrical
parts turned OFF after warming up, M/T at neutral
700 rpm
* ) SHORT FT B1 At specified idle speed after warming up –20 – +20%
* ) LONG FT B1 At specified idle speed after warming up –20 – +20%
) TOTAL FUEL TRIM
B1
At specified idle speed after warming up –35 – +35%
* ) MAF
At specified idle speed with no load after warming up
1.0 – 4.0 g/s 0.14 – 0.52 lb/
min.
At 2500 r/min. with no load after warming up
4.0 – 12.0 g/s 0.53 – 1.58 lb/
min.
* ) CALC LOAD
At specified idle speed with no load after warming up 18 – 28%
At 2500 r/min. with no load after warming up 13 – 23%
*
) THROTTLE
POSITION
Ignition switch ON /
warmed up engine
stopped
Accelerator pedal released 0 – 5%
Accelerator pedal depressed
fully
90 – 100%
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