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TROUBLESHOOTING & REPAIR
SWITCH BOARD TEST (continued)
TABLE F.5 – SWITCH BOARD RESISTANCE TEST (continued)
Apply Positive | Apply Negative |
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Test Probe to | Test Probe to |
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Terminal | Terminal | Test Result | Conclusion | Repair Action | Next Procedure Notes |
12 | 401/403 | Greater than | OK | None | Continue |
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| 1K ohm |
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| Less than | Shorted | Replace both | Snubber Test |
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| 100 ohms |
| switch boards |
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401/403 | 12 | Less than | OK | None | Continue |
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| 100 ohms |
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| Greater than | Open | Replace both | Snubber Test |
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| 1K ohm |
| switch boards |
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9 | 402/404 | Less than | OK | None | Continue |
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| 100 ohms |
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| Greater than | Open | Replace both | Snubber Test |
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| 1K ohm |
| switch boards |
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402/404 | 9 | Greater than | OK | None | Continue |
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| 1K ohm |
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| Less than | Shorted | Replace both | Snubber Test |
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| 100 ohms |
| switch boards |
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NOTE: K ohm = ohm reading multiplied by 1000.
NOTE: Always make sure that switch boards are changed in matched pairs. Never mix an old style (different part number) switch board with a new switch board (new part number).
8.Reconnect all wiring harness leads (401/403, 1/8, 9, 12, 4/5, 402/404) to the switch board.
9.Install the case wraparound cover.
