Initial Procedures

TM 94910-736-14&P

a. Initial Procedures. Proceed as follows:

(1) Turn FUNCTION switch to OFF.

(2) Connect BAT LEADS to battery as follows: Red +12 V lead to

+ terminal and black -12 V lead to - terminal.

(3) Set FUNCTION switch to OHM.

(4) If test is being performed on a coil mounted in the vehicle,

disconnect the primary leads from + and - coil terminals and

disconnect secondary lead from coil tower. (If the coil is

Delco-Remy 1115282, disconnect connectors marked "-" and

SECONDARY and remove the lead attached with screw in the center

of the coil.)

Coil Primary Resistance Test. Proceed as follows:

(1) Set OHMMETER RANGE switch to 0-15.

(2) Connect TEST LEADS together, and using the ZERO ADJ OHM AND SERIES

RES control, adjust meter reading to zero ohms.

(3) Connect TEST LEADS to + and - coil terminals. (If the coil is

Delco-Remy 1115282, connect one TEST LEAD to the pin inside the

connector marked "-" and the other TEST LEAD to the center screw on

the opposite side of the connectors.) Typical coil primary

resistance readings are as follows:

Manufacturer part no.

Coil primary resistance

Autolite - Prestolite 115049

P&D Mfg. VC2 X

1.5 ohms

Delco-Remy 1915992

7 ohms

Delco-Remy 1115282

c. Coil Primary-To-Case Resistance.

Proceed as follows:

(1) Set OHMMETER RANGE switch to 0-100K.

(2) Connect TEST LEADS together, and using the ZERO ADJ OHM AND SERIES RES

control, adjust meter reading to zero ohms.

(3) Connect one TEST LEAD to coil case and the other LEAD to one

primary terminal. The reading should typically indicate an open

circuit.

Coil Secondary Resistance. Proceed as follows:

(1) Set OHMMETER RANGE switch to 0-100K.

(2) Connect TEST LEADS together, and using the ZERO ADJ OHM AND SERIES RES

control, adjust meter reading to zero ohms.

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