Guardian Technologies 4456, 4390 TEST 74 - CHECK REMOTE START WIRING IF EQUIPPED, Section, Part

DC CONTROL

PART 4

SECTION 4.4

DIAGNOSTIC TESTS

6.Connect one meter test lead to Wire 351 (previously removed from SW2). Connect the other meter test lead to Pin Location J3 (Wire 351). CONTINUITY should be measured.

7.Connect one meter test lead to Wire 351 (previously removed from SW2). Connect the other meter test lead to the ground terminal. INFINITY should be measured.

8.Connect one meter test lead to Wire 0 (previously removed from SW2). Connect the other meter test lead to the ground terminal. CONTINUITY should be measured.

RESULTS:

1.If the Set Exercise Switch (SW2) fails Step 3 or Step 4, replace the switch.

2.If CONTINUITY was NOT measured in Step 6, OR if it WAS measured in Step 7, repair or replace Wire 351 between SW2 and Connector J2.

3.If CONTINUITY was NOT measured in Step 8, repair or replace Wire 0 between SW2 and the ground terminal.

TEST 74 - CHECK REMOTE START WIRING

(IF EQUIPPED)

DISCUSSION:

On some earlier models a remote start connection was available. If these two wires are connected together while the generator is in AUTO, the generator will start.

PROCEDURE:

1.Set the AUTO-OFF-MANUAL switch to OFF.

2.Set a VOM to measure resistance.

3.Disconnect the 17-pin connector (J1) from the circuit board.

4.If the remote start connections have been used, disconnect the customer wires from the terminal connector at Wire 178 and Wire 183.

5.Connect one meter test lead to Wire 178 at the terminal connector. Connect the other meter test lead to Wire 183 at the terminal connector. INFINITY should be measured.

6.If the remote start connections have been used, connect the meter test leads across customer supplied wiring. If CONTINUITY is measured, customer supplied circuit is causing startup.

RESULTS:

1.If CONTINUITY was measured in Step 5, a short exists between Wire 178 and Wire 183. Repair or replace Wire 178 and/or Wire 183 between terminal connector and SW1.

TEST 75 - CHECK BATTERY VOLTAGE

CIRCUIT

DISCUSSION:

If the 15 amp fuse blows immediately after replacement, Wire 15 should be checked for a fault.

PROCEDURE:

1.Set the AUTO-OFF-MANUAL switch to OFF.

2.Disconnect the 17-pin connector (J1) from the circuit board.

3.Set a VOM to measure resistance.

4.Disconnect Wire 15 from the fuse holder (F1).

5.Connect one meter test lead to Wire 15 (removed from fuse holder in previous step). Connect the other meter test lead to the ground terminal. INFINITY should be measured.

RESULTS:

1.If CONTINUITY was measured in Step 5, repair or replace Wire 15 between the fuse holder (F1) and SW1, or between SW1 and Connector J1.

2.If INFINITY was measured in Step 5, replace the circuit board and retest.

TEST 76 - CHECK CRANKING AND RUNNING

CIRCUITS

DISCUSSION:

This test will check all of the circuits that are HOT with battery voltage and which could cause the F1 Fuse to blow.

PROCEDURE:

1.Set a VOM to measure resistance.

2.Disconnect the 17-pin connector (J1) from the circuit board.

3.Connect one meter test lead to the ground terminal. Connect the other meter test lead to each of the following J1 Connector pin locations:

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