User Manual

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28
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User guide
| CP9670
AutoScanner®
573904 | REV. B | 03.2016
Bosch Automotive Service Solutions Inc.
4. Return to Diagnostic Menu.
• Press .
5.10 O2 Monitor Tests
OBDII regulations require applicable vehicles monitor
and test oxygen (O2) sensors to determine problems
related to fuel and emissions. The O2 Monitor Tests
allows retrieval of completed O2 sensors monitor test
results.
• The O2 Monitor Tests is not an on-demand test. O2
sensors are not tested when selected via the menu.
O2 sensors are tested when engine operating condi-
tions are within specified limits.
• If the vehicle communicates using a controller area
network (CAN), O2 Monitor Tests are not supported
by vehicle. A message is displayed. See “Diagnostic
Monitor Tests” in this section to see O2 monitor data.
• O2 sensors are located before (upstream) and after
(downstream) catalyst(s). Sensors are named (xy) for
their position to both cylinder banks and catalysts.
– The O2 sensor for cylinder bank 1 has prefix 1y
while O2 sensor for cylinder bank 2 has prefix 2y.
– The O2 sensor upstream of catalyst (closest to
engine) has suffix x1 while O2 sensor down-
stream of catalyst has suffix x2. If vehicle con-
tains more catalysts, O2 sensor downstream of
second catalyst has suffix x3 and O2 sensor
downstream of next catalyst has suffix x4.
– For example, O2S21 is 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
• Rich-to-lean sensor switch time
• Lean-to-rich sensor switch time
• Minimum sensor voltage test cycle
• Maximum sensor voltage test cycle
• Time between sensor transitions
• Sensor period
• Manufacturer specific tests
From Diagnostic Menu:
1. Select O2 Monitor Tests.
• Use the and keys until O2 Monitor
Tests is highlighted.
• Press .
Diagnostic Menu
Erase Codes
MIL Status
State OBD Check
View Data
Record Data
View Freeze Data
Drive Cycle Monitor
O2 Monitor Tests
Diagnostic Monitor Tests
Rd\Er
2. Select O2 sensor.
• Use the and keys until the desired O2
monitor is highlighted.
• Press .
Select O2 Sensor
Rd\Er
O2 Bank1 Sensor2
O2 Bank1 Sensor1
• The O2 sensors located upstream (before cata-
lyst) may perform differently than ones located
downstream (after catalyst).
• Test IDs are shown for unknown O2 sensor
tests.
3. View results of selection.
O2 Bank1 Sensor1
MOD
MAX
MEAS
MIN
Rd\Er
Test $86
MOD
MAX
MEAS
MIN
$09
128
128
128
$09
255
128
128
Test $8D
• Use the and keys.
4. Return to O2 Sensor Tests menu.
• Press .
5. Return to Diagnostic Menu.
• Press .