OBD II Service Data Descriptions (96-30-002)

Publication date: 1996-03-01
Reference number: 96-30-002

OBD II SERVICE DATA DESCRIPTIONS

TECHNICAL SERVICE BULLETIN

Reference Number(s): 96-30-002, Date of Issue: March, 1996

HYUNDAI:	1996 Accent/Elantra/Sonata
GROUP:	30 - Fuel System

DESCRIPTION

Beginning with the 1996 model year, Hyundai vehicles are built to meet California or Federal OBD II standards. This bulletin gives a brief description of the service data available for viewing under the DATA menu on the Hyundai Scan Tool. A more detailed booklet is being developed and will be published later this year.

SERVICE DATA

AIRFLOW: Displayed in Grams per Second (g/s). Numeric value rises as air volume increases. Range = 0 to 255; [W.O.T. will produce approx. 100 g/s]
INTAKE AIR: Displays in degrees Celsius (Centigrade) or Fahrenheit. Range = -40° to 419°F.
AIR: Commanded Secondary Air Status. Does not apply to Hyundai vehicles.
THROTTLE: Displayed in percentages. Range = 0 to 100^%
COOLANT: Displayed in degrees Celsius (centigrade) or Fahrenheit. Range = -40° to 215° C / -40° to 419° F
02 B1 S1: Displayed in Mv. Range = 0 to 1.275 Oxygen Sensor (front); B1 = 1,S2 = Post-catalyst
02 B1 S2: Displayed in Mv. Range = 0 1.275 Oxygen Sensor (rear); B1 = bank 1,S2 = Post-catalyst
ST TRIM: Displayed in percentages. Range = -100 to 100%. number represents short term (ST) fuel metering corrections commanded by PCM. Negative number indicates lean command, positive number indicates rich command
LT TRIM: Displayed in percentages. Range = -100 to 100%. Number represents long term (LT) fuel metering corrections commanded by PCM. Negative number indicates lean command, positive number indicates rich command.
FUEL SYS 1: Indicates operating status of Bank 1. Displays = CL (closed loop), OL (open loop), OL DRV (open look drive), OL FLT (open loop fault) and CL FLT (closed loop fault).
FUEL SYS 2: Indicates operating status of Bank 2. Readings = Same as FUEL SYS 1
ENG. RPM: Displayed as a numeric value of crankshaft revolutions. Range = 0 to engine maximum.
IGN TIMING: Displayed in degrees. Range = -64° to 63.5°
VSS: Vehicle Speed Sensor; displayed as Mph or Kph. Range = 0 to vehicle maximum
LOAD VALUE: Displayed in percentages. Range = 0 to 100%. Calculated from the formula shown below.

Current Airflow/Peak Airflow (sea level) x Atmospheric Pressure (sea level)/Barometric Pressure x 100% = CLV