52
l
For engine system of BMW vehicles, there might be more
than one module detected. You need to select a module
before testing.
l
Use
UP/DOWN
button to select a module and press
OK
button.
NOTE: Systems that can be tested may be different for each vehicle.
9)
Wait a few seconds while the scan tool initializes diagnostic
system.
l
If the scan tool fails to communicate with the vehicle
′
s ECU
(Electronic
Control
Unit),
a
″
TESTER
NOT
COMMUNICATING WITH CONTROL UNIT
″
message
comes up on the screen.
ü
Verify that the ignition is ON.
ü
Check if the scan tool is securely connected to the vehicle
′
s
DLC.
ü
Turn the ignition off and wait for about 10 seconds. Turn the
ignition back to on and repeat the procedure from Step 5 to
Step9 on Page 51.
l
If the message remains, then there might be a problem with
the scan tool communicating with the vehicle. Contact your
local distributor or the manufacturer
′
s customer service
department for assistance.
Reading Codes
CAUTION: Don
′
t connect or disconnect any test equipment with
ignition on or engine running.
Engine System
...
►
1-6 Cylinders
7-12 Cylinders
OK
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