Cranking voltage - battery load test, Fig. 17 – Actron Digital Multimeter CP7676 User Manual

Page 16

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4

CYL

5

CYL

6

CYL

8

CYL

2K 200

200

750

20

2

20M

2M

200K

20K

DC V

AC V

OHMS

RPM

X10

750V AC
200V DC

COM

V

DWELL

4

CYL

5

CYL

6

CYL

8

CYL

OFF

16

Cranking Voltage - Battery Load Test

This test checks the battery to see if it is

delivering enough voltage to the starter

motor under cranking conditions.

4. Connect RED test lead to positive (+)

terminal of battery.

5. Connect BLACK test lead to negative

(-) terminal of battery.

6. Turn multimeter rotary switch to 20V

DC range.

7. Crank engine for 15 seconds

continuously while observing display.

8. Test Results.

Compare display reading in Step 7 with

chart below.

Fig. 17

Voltage

Temperature

9.6V or greater 70 °F and Above

9.5V

60 °F

9.4V

50 °F

9.3V

40 °F

9.1V

30 °F

8.9V

20 °F

8.7V

10 °F

8.5V

0 °F

If voltage on display corresponds to above

voltage vs. temperature chart, then cranking

system is normal.

If voltage on display does not correspond to

chart, then it is possible that the battery,

battery cables, starting system cables,

starter solenoid, or starter motor are

defective.

Red

Black

Test Procedure (see Fig. 17):

1. Disable ignition system so vehicle

won’t start.

Disconnect the primary of the ignition coil

or the distributor pick-up coil or the cam/

crank sensor to disable the ignition

system. Refer to vehicle service manual

for disabling procedure.

2. Insert BLACK test lead into the COM

test lead jack.

3. Insert RED test lead into the test lead

jack.

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