Actron KAL9620A - Manual (Page 15)

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 responds
with freeze frame data, then the frame
number and module display on the first line.
Press the LEFT/Right key to change modules.
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.
NOTE: If vehicle communicates using a Controller Area Network (CAN), O2 Monitor Tests
are NOT supported by vehicle. A message is displayed. See Diagnostic Monitor
Test to see O2 Monitor Data.
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.
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