Test 33 - Test Wire 167 - Generac Power Systems GP Series Diagnostic And Repair Manual

Section 4 AC Diagnostic Tests
14
1
5
15
9
13
15
15
Figure 4-40. Start Stop Relay (SSR)
See Figure 4-40. Connect wire 15 to the SSR and
5.
remove wire 229 from the SSR.
Connect a jumper lead from the terminal of the
6.
SSR where wire 229 was just removed and to
frame ground.
a. The relay should energize closed. Visually
inspect it to see if it closes.
b. If the relay energizes closed proceed to step 4.
c. If the relay does not energize closed replace it.
See Figure 4-41. Remove wire 0, wire 18, wire 15,
7.
wire 15B, wire 15, and wire 14.
Set DMM to measure resistance.
8.
Remove jumper lead from step 6.
9.
Connect meter test leads across TEST POINTS A
10.
a. Continuity (closed) should be measured.
Connect meter test leads across TEST POINTS B
11.
a. Infinity should be measured.
Connect meter test leads across TEST POINTS C.
12.
a. Infinity should be measured.
If the SSR fails any test replace it.
13.
TEST POINTS C
14
TEST POINTS B
1
5
15
9
13
15
15
Figure 4-41. Start Stop Relay (SSR) Not Energized
See Figure 4-42. Remove wire 229 from the SSR.
14.
Connect a jumper lead from the terminal of the
15.
SSR that wire 229 was just removed from and to
frame ground.
a. The relay should energize closed.
52
18
2 4
15B
6 8
10 12
0
14
SSR
229
18
TEST POINTS A
2 4
15B
6 8
10 12
0
14
SSR
229
TEST POINTS C
14
15
15
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Figure 4-42. Start Stop Relay (SSR) Energized
Set DMM to measure resistance.
16.
Connect meter test leads across TEST POINTS A
17.
a. Infinity should be measured.
Connect meter test leads across TEST POINTS B
18.
a. Continuity (closed) should be measured.
Connect meter test leads across TEST POINTS C
19.
a. Continuity (closed) should be measured.
If the SSR fails any test replace it.
20.
Results
Refer to Flow Chart.
Test 33 – Test Wire 167
Procedure
Set DMM to measure DC voltage.
1.
See Figure
2.
the circuit board.
Connect the positive meter test lead to pin location
3.
J2-5, wire 167 on the removed harness connector.
Connect the negative meter test lead to frame
4.
ground.
Set the start-run-stop switch (SW1) to START. The
5.
engine will crank and 12 VDC should be measured.
a. If 12 VDC is measured, stop testing.
b. If 12 VDC is not measured continue testing.
See Figure
6.
wire 167 at terminal block 1 (TB1).
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NOTE: Where terminal block is not present, place meter
test lead on the wire at the termination point. If
necessary, use a small paper clip to probe beside the
wire so as not to damage the terminal in the connector.
TEST POINTS B
TEST POINTS A
1 2 4
5 6 8
9 10 12
13 14
SSR
229
15
JUMPER LEAD
ADDED TO GROUND
4-43. Remove the J2 connector from
4-44. Connect the positive test lead to
Diagnostic Repair Manual
18
15B
0
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