Test Messages - Midtronics MDX-650P SOH Instruction Manual

Decision
HIGH OUTPUT
EXCESSIVE
RIPPLE
6. Press  6 to print the test results or

Test Messages

For a more decisive result, the tester may prompt you for additional
information. The messages in the following table may appear before the tester
can display a result.
Test Message
BAT. TEMPERATURE
CHARGE STATE
SURFACE CHARGE
DETECTED
CHECK
CONNECTION
ENGINE REV NOT
DETECTED PRESS
WHILE REVVING
REVERSE
CONNECTION
SYSTEM NOISE
CHECK LOADS
UNSTABLE
BATTERY
WIGGLE
CLAMPS
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Alternator voltage output exceeds the normal limits.
√ Make sure there are no loose connections and
the ground connection is normal. If there are no
connection problems, replace the regulator. Most
alternators have a built-in regulator that requires
replacing the alternator. In older vehicles that
use external voltage regulators, you may need to
replace only the voltage regulator.
Excessive AC ripple detected.
√ One or more diodes in the alternator is not
functioning or there is stator damage.
Select ambient temperature above or below 32 ºF (0 ºC)
Select before or after battery has been charged.
Remove the surface charge before it begins testing.
Testing will resume after charge has been removed.
One or both clamps are not making proper contact with
the battery terminals.
Tester has not detected an increase in engine rpm
Clamps are connected in the wrong polarity:
positive to negative or negative to positive.
In-vehicle testing. Tester has detected computer, ignition
noise or parasitic drain. Make sure all vehicle loads are
off including open doors and ignition switch.
Out-of-vehicle. Weak battery, should be charged and
retested.
Clamps are not making good contact with
battery terminals
13
Interpretation
to return to the Options Menu.
Interpretation
MDX-650P SOH