If a generic OBD-II scan tool is used it may require PID references to be entered. See GENERIC PID DEFINITION table. Turn ignition off. Ensure test equipment is properly attached. Program scan tool using the following steps:

Turn ignition on or start engine and allow to idle.
Select VEHICLE & ENGINE SELECTION menu (optional).
Select year, engine, model and any additional information requested by scan tool (optional).
Select DIAGNOSTIC FUNCTIONS. Press CONT button if all monitors are not complete.
Select PID/DATA MONITOR.
Select PIDs and press "Trigger".
Press START to begin.

GENERIC PID DEFINITION

Acronym

Description

PID Values

CCNT ⁽¹⁾

O2S Sensor Voltage Cross Count

N/A

ECT ⁽¹⁾

Engine Coolant Temperature

°F

FUEL SYS1 ⁽¹⁾

Fuel System Status - Bank No. 1

⁽²⁾ OL; CL; OL Drive; OL Fault; CL Fault

FUEL SYS2 ⁽¹⁾

Fuel System Status - Bank No. 2

⁽²⁾ OL; CL; OL Drive; OL Fault; CL Fault

OBD SUP ⁽¹⁾

Level Of On-Board Diagnostic Support

N/A

O2S11

Oxygen Sensor 11

Volts

O2S12

Oxygen Sensor 12

Volts

IAT

Intake Air Temperature

°F

LONGFT1 ⁽¹⁾

Long Term Fuel Trim Bank 1

Percent

LOAD ⁽¹⁾

Calculated Engine Load

Percent

MAF ⁽¹⁾

Mass Airflow Rate

Lb./Min.

MAP ⁽¹⁾

Manifold Air Pressure

in-Hg (mm-Hg)

MIL ⁽¹⁾

Malfunction Indicator Light

On/Off

RPM ⁽¹⁾

Engine RPM

RPM

SHRTFT1 ⁽¹⁾

Short Term Fuel Trim Bank 1

Percent

SHRTFT11 ⁽¹⁾

Short Term Fuel Trim O2S 11

Percent

SHRTFT12 ⁽¹⁾

Short Term Fuel Trim O2S 12

Percent

SPARKADV

Spark Advance Cylinder No. 1

Degrees

Throttle Position

Percent

VSS ⁽¹⁾

Vehicle Speed Sensor

MPH

⁽¹⁾	Also available in freeze frame data mode. Refer to FREEZE FRAME DATA MODE .

⁽²⁾	OL = Open Loop, Closed Loop (CL) conditions have not been satisfied. CL = Using HO2S feedback for fuel control. OL Drive = Open loop due to driving conditions (heavy acceleration). OL Fault = Open loop due to vehicle system fault. CL Fault = Closed loop fuel control, but fault with HO2S sensor(s).

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Generic OBD-II PIDs

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?