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Bosch BAT 131 Manual Original página 9

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4.8
Charging System Test Results
i
Press the  to print the test results or MENU/POWER to return to the Options 1Menu.
Message
Interpretation
NO PROBLEMS
System is showing normal
output from the alternator.
NO OUTPUT
No alternator output de-
tected.
LOW OUTPUT
Alternator not providing
sufficient current to po-
wer the system's electri-
cal loads and to charge the
battery.
HIGH OUTPUT
Alternator voltage output
exceeds the normal limits.
EXCESSIVE RIPPLE
Excessive AC ripple de-
tected.
CHARGE BATTERY
The starter voltage is low
and the battery is dischar-
ged.
REPLACE BATTERY
If the battery test result
was REPLACE or BAD
CELL.
SIDE POST
Test data was inconclusive
using the side post.
JUMP START POST
Data was inconclusive
using the Remote post.
i
See "Maintenance & Troubleshooting" in this manual for more information about the printer.
4.9
Additional 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
Robert Bosch GmbH
Action to be taken
R Check all connections to and from the alternator, especially the connection to
the battery. If the connection is loose or heavily corroded, clean or replace the
cable and retest.
R If the belts and connections are in good working condition, replace the alterna-
tor. (Older vehicles use external voltage regulators, which may require only re-
placement of the voltage regulator.)
R Check the belts to ensure the alternator is rotating with the engine running. Re-
place broken or slipping belts and retest.
R Check the connections from the alternator to the battery. If the connection is
loose or heavily corroded, clean or replace the cable and retest.
R 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 vehic-
les that use external voltage regulators, you may need to replace only the volta-
ge regulator.
One or more diodes in the alternator is not functioning or there is stator damage.
Fully charge the battery and repeat the starter system test.
The battery must be replaced before testing the starter.
Retest using side post adapters.
Retest at the battery terminals.
Action to be taken
Select ambient temperature above or below 0˚C (32˚F).
Select before or after battery has been charged.
Remove the surface charge before it begins testing. Testing will resume after charge has been re-
moved.
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.
Only with BATT. LOCATION INSIDE VEHICLE. BAT 131 has recognized active loads in the vehicle. En-
sure that all loads in the vehicle are deactivated, including opened doors and the ignition switch.
Out-of-vehicle. Weak battery, should be charged and retested.
Clamps are not making good contact with battery terminals
Perform Test | BAT 131 | 9
|
1 689 989 133
en
2013-09-09

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