Tec Display Table; Engine Data Display Table Definitions - Daewoo Nubira Owner's Manual

1F – 10IENGINE CONTROLS
At idle / Upper Radiator / Closed Throttle / Park or Neutral / Closed loop / Acc. OFF
Scan Tool Parameter
Engine Speed
TP Angle
Engine Coolant Temperature
Intake Air Temperature
Cam Active Counter
Spark
MAP
Vehicle Speed
Decel Fuel Mode
Power Enrichment Mode
Injector Pulse Bank 1
Crank Error Latched
Sum Out Of Range
Opposing Factor Out Of Range
Factor Out Of Range
Enable Criteria Not Met
Cat Damaging Misfire
Test is Running
Learned This Key Cycle
Attempts to Learn
ENGINE DATA DISPLAY TABLE
DEFINITIONS
PCM/ECM Data Description
The following information will assist in diagnosing emis-
sion or driveability problems. A first technician can view
the displays while the vehicle is being driven by second
technician. Refer to Powertrain On–Board Diagnostic
(OBD II) System Check for additional information.
A/C Clutch
The A/C Relay represents the commanded state of the
A/C clutch control relay. The A/C clutch should be en-
gaged when the scan tool displays ON.
A/C Pressure
The A/C High Side displays the pressure value of the A/C
refrigerant pressure sensor. The A/C High Side helps to
diagnose the diagnostic trouble code (DTC) P0533.

TEC Display Table

Units Displayed
RPM
%
C,F
C,F
Counts
Degrees
kPa
mph
Yes/No
Yes/No
mS
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Counts
A/C Request
The A/C Request represents whether the air conditioning
is being requested from the HVAC selector. The input is re-
ceived by the instrument panel cluster and then sent over
universal asynchronous receiver transmitter (UART) seri-
al data to the powertrain control module (PCM)/engine
control module (ECM) and finally to the scan tool over
class 2 serial data.
Air Fuel Ratio
The Air Fuel Ration indicates the air to fuel ratio based on
the Oxygen Sensor (O2S 1) inputs. The PCM/ECM uses
the fuel trims to adjust fueling in order to attempt to main-
tain an air fuel ratio of 14.7:1.
BARO
The Barometric Pressure (BARO) sensor measures the
change in the intake manifold pressure which results from
altitude changes. This value is updated at ignition ON and
also at Wide Open Throttle (WOT).
Typical Data
µ100 rpm from the Desired RPM
0 (up to 100% at wide open throttle)
85³–115³C (185³–239³F) Varies
with the coolant temperature
10³–80³C(50³–176³F) Varies with
the underhood temperature
0–255
Varies
25–35 kPa
0
–
–
Varies
–
–
–
–
–
–
–
–
DAEWOO V–121 BL4