2884

Possible Causes

• •Aux 101 1 Analog Input #3 active state selection parameter is configured incorrectly
• •Bent or broken pins, pushed back, or expanded pins
• •Condition for which Analog/Switch Input #3 is configured for is active
• •Dirt or debris in or on the connector pins
• •Evidence of moisture or corrosion in or on the connector
• •Faulty switch connector(s)
• •Faulty switch unit
• •Missing or damaged connector seals
• •Wiring harness incorrectly wired, open circuit, or short circuit to the AUX 101 board

Suggested Actions

1. 1Check the switch unit's connection at the plug for an adequate connection, short circuit, open circuit, or a wiring mismatch at the switch connector end
2. 2Check the wiring at J11-1 (reference input) and J11-2 (switch input) for an open circuit, short circuit, or a miss-wired condition at the AUX 101 input side
3. 3Inspect the switch and the harness connector pins for bent/broken/pushed back/expanded pins, moisture or corrosion, missing or damaged seals, and dirt or debris
4. 4Press the Reset button on the operator panel after the issue is resolved to clear the fault
5. 5Verify the condition for which Analog/Switch Input #3 has been configured
6. 6Verify the wiring harness running from the switch plug to the AUX 101 board for a shorted low condition at the J11-2 (switch input) side
7. 7With the switch disconnected, measure the resistance from the J11-2 input pin to the engine block ground (value should be more than 100k ohms)

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