Chapter 5: System Test; Battery Test; Starter Test; Starter System Test Results - Midtronics EXP-925 Instruction Manual

Chapter 5: System Test

Before starting the test, inspect the alternator drive belt.
A belt that is glazed or worn, or lacks the proper tension, will
prevent the engine from achieving the rpm levels needed
for the test.
The System Test includes 3 tests that provide a complete
diagnosis of the vehicle's electrical system:
•

BATTERY TEST

•

STARTER TEST

•
ALTERNATOR TEST
Battery Test
The System Test includes a test of the battery to eliminate it
as the cause of starting or charging problems. See Chapter 4
for the Battery Test procedure.
Starter Test
1. Have your amp clamp ready and select the AMP CLAMP
availability.
1 INTEGRATED
2 OTHER
3 NONE
NEXT
Press the soft key to continue.
2. Attached the Amp clamp to the tester, do not connect it
around any wire.
NEXT
Press the soft key to continue.
3. Tester will zero out the Amp clamp.
4. Place Amp clamp around negative cable.
NEXT
Press the soft key to continue.
5. Start the vehicle's engine when prompted. If after the
vehicle started and the results do not appear after ap-
proximately 25 seconds, press the NO START soft key.
6. The analyzer displays one of the decisions and the re-
sults in a series of screens.
NOTE: In some cases, the tester may not detect the
vehicle's starting profile. It will display the soft key
STARTED
options
STARTED
, the analyzer skips to the Alternator Test. If
you select NO START, the test process ends.
Midtronics B.V. Hoofdveste 6 - 8
Chapter 5: System Test
(EST version only)
NO START
and . If you select
Houten NL

Starter System Test Results

The results include the battery analysis. Use the UP () or
DOWN () ARROW key to scroll to each screen. See the
Starter System Decision table for an explanation of the starter
system decisions. To continue testing, press the NEXT soft key.
Starter
decision
X axis = time
Starter System Test Decisions
Decision
CRANKING The starter voltage is normal and the
NORMAL battery is fully charged.
LOW VOLTAGE The starter voltage is low and the
battery is fully charged.
CHARGE The starter voltage is low and the
BATTERY battery is discharged. Fully charge the
battery and retest the starter system.
REPLACE Replace the battery and retest before
ADVISED testing the alternator test..
NO START The engine did not start and the test
was aborted.
CRANKING The tester did not detect the vehicle's
SKIPPED starting profile and skipped the Starter
Test.
18
EXP-925
Average
cranking
voltage
Cranking
time in mil-
liseconds
Action
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