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en | 6 | Operating Instructions | BAT 135 Battery Tester
7
System Test
1.
Press ENTER to view the System Test screen.
2.
Turn off all vehicle accessory loads such as light, air conditioning, radio, etc. before starting the engine.
3.
When the engine is started, one of three results will be displayed, along with the reading taken:
} Cranking Volts Pass
The system is showing normal draw. Press ENTER to start the charging system test.
} Cranking Volts Fail
The cranking voltage is below normal limits. Troubleshoot the starter with the manufacturer's recommended
procedure.
} Cranking Volts Not Detected
The cranking voltage is not detected.
4.
If the cranking voltage is normal, press ENTER to begin the charging system test.
5.
Press ENTER. The following screen appears.
6.
Press ENTER. One of the following two results for the Charging Volts Test at Idle will be displayed.
} PASS
} FAIL
7.
Monitoring the charging system at idle, press ENTER for the charging system with accessory loads. Turn on the
blower to High (heat), High Beam headlights, and Rear Defogger. Do not use cyclical loads such as air
conditioning or windshield wipers.
8.
When testing older model diesel engines, run up the engine to 2500 rpm for 15 seconds. You will view the
following screen:
BAT 135 | REV. A | JANUARY 2018
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