LINES GP-AIR 4N7172 - Caterpillar

4N7172 LINES GP-AIR Caterpillar parts 3408, 3408B, 3408C

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Alternative (cross code) number:
CA4N7172
4N-7172
4N7172

Weight: 3 pounds 1 kg.

Buy LINES GP-AIR 4N7172 Caterpillar genuine, new aftermarket tractor parts with delivery
GEN SET ENGINE, MARINE ENGINE,

Compatible equipment models: 4N7172:

GEN SET ENGINE 3408

GENERATOR SET 3408C

INDUSTRIAL ENGINE 3408 3408B

MARINE ENGINE 3408 3408B 3408C Caterpillar

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Caterpillar 4N7172 Parts scheme LINES GP-AIR

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Illustration 1 g00565138
This diagnostic code is recorded when the Main Display Module of the Caterpillar Monitoring System reads the current of the circuit for the Action Alarm below normal. Also, this diagnostic code is recorded when the Main Display Module reads an open circuit with the Action Alarm. As a result of this action, the Action Alarm does not sound when the Action Alarm should sound.
Check The Alarm.
Disconnect the engine harness from the Action Alarm.
Place a jumper wire across the two leads of the Action Alarm of the engine harness.Expected Results: CID 0271 FMI 05 should remain active.Results:
OK: The FMI 05 diagnostic code is still active. The Action Alarm is not causing the problem. Measure the resistance across the terminals of the Action Alarm. The resistance should be 200 100 ohms. If the resistance of the Action Alarm is good, but the alarm does not sound, proceed to Step 2.
Not OK: If the FMI 05 diagnostic code is not active, the Action Alarm has a problem. Measure the resistance across the terminals of the Action Alarm. The resistance should be 200 100 ohms. If the resistance of the Action Alarm is good, but the alarm does not sound, proceed to Step 2. If the resistance of the Action Alarm is not good, then replace the Action Alarm. Proceed to Step 2.
Check The Harness.
Turn the "ECS" switch to the OFF/RESET position.
Remove the jumper wire from the harness leads of the Action Alarm.
Reconnect the harness leads to the Action Alarm.
Disconnect the engine harness from the Action Alarm.
At the engine harness connector for the Main Display Module, measure the resistance from Contact 4 to Contact 2 (ground).Expected Results: The resistance should be less than 300 ohms.Results:
OK: The resistance is less than 300 ohms. The harness resistance is correct. Proceed to Step 4.
Not OK: The resistance is greater than 300 ohms. The harness circuit is open. Proceed to Step 3.
Check The Harness.
Disconnect the engine harness from the Action Alarm.
Check for an open circuit. The open circuit may be located between the Main Display Module of the Caterpillar Monitoring System (Contact 4) and the Action Alarm output (Terminal 1).
Check for an open circuit between the lead of the Action Alarm (Terminal 2) and ground.
If an open circuit is found, repair the harness or replace the harness.
Check the Main Display Module.
Turn the "ECS" switch to the OFF/RESET position.
Reconnect the engine harness connector to the Main Display Module.
Turn the "ECS" switch to the COOLDOWN/STOP position.Expected Result: The FMI 05 diagnostic code should not be active.Results:
OK: The FMI 05 diagnostic code is not active. The Main Display Module of the Caterpillar Monitoring System is not the cause of the problem. The problem is intermittent. The probable cause is a poor electrical connection at the harness connectors or a damaged harness. Check the harness for damage and clean the connectors when cleaning is required.
Not OK: The FMI 05 diagnostic code is still active. The Main Display Module has a problem. Replace the Main Display Module.