User Manual

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User guide
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OBD1300 Enchanced ODB I & OBD II Scan Tool
573700 | REV. B | 03.2016
Bosch Automotive Service Solutions Inc.
From On Demand Tests Menu:
1. Select Cylinder Balance Test.
• Use the UP and DOWN keys until Cylinder
Balance Test is highlighted.
• Press .
On Demand Tests
KOEO Wiggle Test
KOER Wiggle Test
Output Switch Test
Cylinder Balance Test
KOER Computed Timing
STAR Test Mode
Acronyms
Review Data
Print Data
CAUTION
Keep hands and tools away from fan and
engine during test.
2. Perform the following:
• Set parking brake.
• Transmission in park (P) or neutral (N).
• Turn A/C off.
• Start engine and let idle until hot.
• Turn ignition key off.
• Wait 10 seconds. Start engine and let idle.
• If vehicle is equipped with a manual transmis-
sion, release clutch.
• Press to continue.
3. Wait for the Cylinder ID.
• Follow all user prompts:
– Work Steering Wheel
– Pump brake pedal and cycle overdrive (OD)
cancel switch.
• Observe the screen for the prompt to perform
the next action.
– Quickly press and release the throttle. One
time only!
– If no DTC is present, continue to Step 4. If
any DTC(s) are present, the Cylinder Bal-
ance Test stops and the tool displays the
DTCs.
4. Start Cylinder Balance Test.
• Depress and release the throttle halfway within
the next 1.5 minutes.
• Press to continue.
Cylinder Balance Test
Depress throttle half way
& release once in next 1.5
min.
Time remaining
7:58
Please Wait
• Do not move the throttle.
– If throttle is moved after pressing and
releasing the throttle, the tool displays an
error message indicating the test failed due
to throttle movement.
– Noise from the throttle position sensor
(TPS) may cause the test to abort even
though the throttle was not moved.
5. View test results.
• If the engine operates properly, the screen
below displays. Press to continue.
Cylinder Balance Test
Press ENTER to continue
PASS
• If a problem exists with one or more cylinders,
the tool displays a list of failed cylinder(s).
Press to continue.
• Refer to the applicable vehicle service manual
for cylinder numbering sequence. Cylinder
failure may be caused by faulty injectors, sparks
plugs, or wiring.
Cylinder Balance Test
Press ENTER to continue
Failed cylinders found.
5
• Press to continue — the tool prompts the
user to retest (up to three times). If required,
rerun the test to double check the results, or to
check for weaker or dead cylinders.
6. Return to On Demand Tests Menu.
• Turn the ignition key off.
• Press .
7.7 KOER Computed Timing (1984-1991
EEC-IV Vehicles)
The KOER Computed Timing function allows you to
check both the Base engine timing (no computer adjust-
ment) and the ability of the computer to control spark
advance.
• This does not apply to 7.3L diesel vehicles.
• Connect a timing light to the vehicle in accordance
with the manufacturer’s instructions. (For 2.3L dual
plug engines, use exhaust side plug. Refer to ignition