16
13
ALTERNATIOR TEST RESULTS
Alternator has GOOD regulation
and GOOD output. (See Note 2
below)
High Regulation will damage
the system. Replace or repair
the Alternator. No indication of
cable condition if clips are not
connected to the alternator.
Good cables is indicated if clips are
connected to the alternator
High Voltage Drop indicating the
positive and negative cables. Output
cannot be determined until cables are
corrected.
Press (Y Enter).
NOTE
1
:
If the LCD reads "LOW AMP OUTPUT" it is recommended
that you run the test again with the engine at fast idle. If the LCD still
reads LOW AMP OUTPUT turn on the accessories and select the VOLT
METER test as show below and on page 21.
NOTE
2
:
Use the VOLT METER test as shown below and on page 21 to
obtain the actual diode ripple. Typically a ripple above 50mV indicates a
bad diode. If the system has a strong battery the ripple will be lower than
if the system has a weak battery.
Run this test with the accessories
on and the engine at fast idle. If the
voltage drops below 13 volts the
alternator does have LOW OUTPUT.
Press the (- Down) key to show
POS and NEG drop.
#43 12V ALT&CBL
GOOD REG. 14.13V
GOOD DIODE/CABLE
OUTPUT OVER 50A.
REVIEW/PRINT
>VOLT METER
DOWNLOAD/SETUP
ABOUT
#43 12V ALT&CBL
LOW REG. 12.83V
HIGH VDROP 1.95V
1.81 POS 0.14 NEG
--VOLT METER--
VOLTS: 14.50V
EXT V: 04.60V
RIPPLE 22.4mV
#43 12V ALTER.
GOOD REG. 14.13V
GOOD DIODES
OUTPUT OVER 50A.
#43 12V ALTER.
HIGH REG. 15.03V
GOOD DIODE
OUTPUT 20-50A.
--VOLT METER--
VOLTS: 13.94V
EXT V: 14.50V
0.36POS 0.20NEG
