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P 0 1 0 1 – Actron Global OBD II Scan Tool 9620 User Manual

Page 15

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9620 Professional OBD II Scan Tool

15

2.3.6 View Freeze Data

When an emission-related fault occurs, certain vehicle conditions are recorded by the

on-board computer. This information is referred to as a Freeze Frame data. The information

is a “snapshot” of operating conditions at time of a fault. This data can be overwritten by

faults with a higher priority.

NOTE: If codes were erased, then freeze frame data may not be stored in vehicle memory.

Select View Freeze Data from the OBDII Function

List and press ENTER.

The scan tool links to the vehicle and displays

Freeze Frame data. Use UP/DOWN arrow keys

to scroll through data.

NOTE: If more than one computer module respons

with freeze fram data, then the frame num-

ber and module display on the first line.

Press the LEFT/Right key to change mod-

ules.

When done, press BACK key to return to OBDII Function List.

2.3.7 O2 Monitor Test

NOTE: The O2 Monitor Test is NOT AN ON-DEMAND TEST. O2 sensors are NOT tested

when selected via the menu. The O2 sensors are tested when engine operating

conditions are within specified limits.

OBD II regulations require that applicable vehicles monitor and test the oxygen (O2)

sensors to determine problems related to fuel and emissions. The O2 Monitor Test

allows retrieval of completed O2 sensors monitor test results.
O2 sensors are located before (upstream) and after (downstream) catalyst(s). The

sensors are named (xy) for their position relative to both cylinder banks and catalysts.

• The O2 sensor for cylinder bank 1 has the prefix 1y while the O2 sensor for

cylinder bank 2 has the prefix 2y.

• The O2 sensor upstream of the catalyst (closest to the engine) has the suffix x1

while the O2 sensor downstream of the catalyst has suffix x2. If vehicle contains

more catalysts, the O2 sensor downstream of the second catalyst has the suffix

x3 and the O2 sensor downstream of the next catalyst has the suffix x4.

• For example, O2S 21 is the upstream O2 sensor for cylinder bank 2.

The following O2 sensor tests are available:

• Rich to Lean sensor threshold voltage
• Lean to Rich sensor threshold voltage
• Low sensor voltage for switch time
• High sensor voltage for switch time

FREEZE FRAME DATA

TROUB CODE

P0443

CALC LOAD(%)

85.6[

ENGINE(RPM)($10)

1120

OBDII Function List

|

4)Erase Codes

]

5)View Data

[

`6)View Freeze Data

FRAME 1 Mod $1A

TROUB CODE P0443

CALC LOAD(%)

85.6[

ENGINE(RPM)($10)

1120

22

9620 Professional OBD II Scan Tool

Example:

P0101 - Mass or Volume Air Flow

Circuit Range/Performance Problem

P 0 1 0 1

Powertrain Codes

P0xxx - Generic (SAE)

P1xxx - Manufacturer Specific

P2xxx - Generic (SAE)

P30xx-P33xx - Manufacturer Specific

P34xx-P39xx - Generic (SAE)

Chassis Codes

C0xxx - Generic (SAE)

C1xxx - Manufacturer Specific

C2xxx - Manufacturer Specific

C3xxx - Generic (SAE)

Body Codes

B0xxx - Generic (SAE)

B1xxx - Manufacturer Specific

B2xxx - Manufacturer Specific

B3xxx - Generic (SAE)

Network Communication Codes

U0xxx - Generic (SAE)

U1xxx - Manufacturer Specific

U2xxx - Manufacturer Specific

U3xxx - Generic (SAE)

Bx - Body

Cx - Chassis

Px - Powertrain

Ux - Network Comm.

  x = 0, 1, 2 or 3

Vehicle Specific System

Specific Fault Designation

Section 3: Diagnostic Trouble Codes (DTC)

3.1 DTC Format

Diagnostic Trouble Codes (DTCs) consist of a five-digit alphanumeric code. The DTC

format and types are shown below. When the on-board computer recognizes and identifies

a problem, a DTC for that fault is stored in memory. These codes are intended to help you

determine the root cause of a problem.

J2012 and ISO 15031-6 are standards for all DTCs, established by SAE, International

Organization for Standardization (ISO) and other governing bodies. Codes and definitions

assigned by this specification are known as Generic OBD II codes. OBD II requires

compliance with standards, and has made it standard for all cars, light trucks, APVs,

MPVs, and SUVs sold in U.S. Codes not reserved by SAE are reserved for manufacturer

and referred to as Manufacturer Specific.
Periodically, new DTCs are defined and approved by SAE, ISO and other governing

bodies. The scan tool software will be periodically updated to reflect these changes. For

more information regarding DTC updates, please call our Technical Support line at

1-800-228-7667 (8:00 – 6:00 EST Monday – Friday), or send an email to

[email protected].

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