CPX-950
www.midtronicseurope.com
Midtronics BV Hoofdveste 6-8 3992DG Houten
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8 – Maintenance & Troubleshooting
8 – Maintenance & Troubleshooting
CPX-950
Charge Battery
The starter voltage is low and the battery is discharged. 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.
Low Cranking
Amps
The starter voltage is high but the cranking amps are low.
Cranking Skipped
The engine didn’t start and the test was aborted or the vehicle’s starting profile was not detected
and the Starter Test was skipped.
Alternator Test Results
Decision
Action
CHARGING
NORMAL
The output from the alternator is normal.
NO OUTPUT
No output detected. Check belts to ensure alternator is rotating when engine is running.
√
Check all alternator connections including to the battery.
Clean or replace if necessary and retest.
√
If the belts and connections are in good working condition,
replace alternator or external voltage regulator.
LOW OUTPUT
Alternator not providing enough current to power electrical loads and charge the battery.
√
Check belts to ensure the alternator is rotating with the
engine running.
√
Check alternator connections to and from the battery. If
loose or heavily corroded, clean or replace the cable and
retest.
HIGH OUTPUT
Alternator voltage to the battery exceeds normal limits of a functioning regulator.
√
Check for loose and normal ground connections. If no
connection problems are found, replace the regulator.
The normal high limit of a typical automotive regulator is 14.5 volts +/–0.5. Refer to the
manufacturer specifications for the correct limit, which may vary by vehicle type.
Decision
Cranking
Health
Reserve
Capacity
SOH Message
Good
Battery
Good
No Test
The battery shows good cranking performance. Test the battery again
at next service opportunity.
Good
Recharge
Good
Recharge
The battery shows good cranking performance but low charge.
Fully charge the battery for optimal performance and life. Check the
starting and charging systems for causes of low charge.
Charge &
Retest
Charge &
Retest
Charge the battery and retest to determine condition.
Replace
Battery
Warning
The battery shows low cranking performance. Replace the battery to
prevent a no-start situation in your vehicle.
Warning
The battery shows low cranking performance. Replace the battery to
prevent a no-start situation in your vehicle.
No Test
No Test
No Test
Conditions have prevented a test of the battery reserve capacity.
Ensure that there are no loads on the battery before attempting any
retest.
Generate Pair Results
Decision
Action
In balance
The batteries are working correctly and are balanced.
Pack replace
Replace the battery and retest. A REPLACE result may also mean a poor con-
nection between the battery cables and the battery. After disconnecting the
battery cables, retest the battery using the out-of vehicle test before replacing
it.
Pack charge
Charge the battery pair and retest. Failure to fully charge the battery before
retesting may cause false readings. If CHARGE appears again after you fully
charge the battery, replace the battery.
Pack out of
balance
The batteries are not balanced with each other and should not be used
together.
Starter Test Results
Decision
Action
Cranking Normal
The starter voltage is normal and the battery is fully charged.
Low Voltage
The starter voltage is low and the battery is fully charged.
