1 689 989 132 2011-09-09| Robert Bosch GmbH
Perform Test | BAT 131 | 9BAT 131 | 9 | 9
en
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 Action to be taken
NO PROBLEMS System is showing normal
output from the alternator.
–
NO OUTPUT No alternator output de-
tected.
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.)
LOW OUTPUT Alternator not providing
sufficient current to po-
wer the system's electri-
cal loads and to charge the
battery.
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.
HIGH OUTPUT Alternator voltage output
exceeds the normal limits.
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.
EXCESSIVE RIPPLE Excessive AC ripple de-
tected.
One or more diodes in the alternator is not functioning or there is stator damage.
CHARGE BATTERY The starter voltage is low
and the battery is dischar-
ged.
Fully charge the battery and repeat the starter system test.
REPLACE BATTERY If the battery test result
was REPLACE or BAD
CELL.
The battery must be replaced before testing the starter.
SIDE POST Test data was inconclusive
using the side post.
Retest using side post adapters.
JUMP START POST
Data was inconclusive
using the Remote post.
Retest at the battery terminals.
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
Action to be taken
BAT. TEMPERATURE Select ambient temperature above or below 0˚C (32˚F).
CHARGE STATE Select before or after battery has been charged.
SURFACE CHARGE DETECTED Remove the surface charge before it begins testing. Testing will resume after charge has been re-
moved.
CHECK CONNECTION One or both clamps are not making proper contact with the battery terminals.
ENGINE REV NOT
DETECTED PRESS
WHILE REVVING
Tester has not detected an increase in engine rpm
REVERSE CONNECTION Clamps are connected in the wrong polarity: positive to negative or negative to positive.
SYSTEM NOISE CHECK LOADS 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.
UNSTABLE BATTERY Out-of-vehicle. Weak battery, should be charged and retested.
WIGGLE CLAMPS Clamps are not making good contact with battery terminals
To Next Page
Loading...
