GEAR-AIR COMPR 2223908 - Caterpillar



2223908 GEAR-AIR COMPR Caterpillar parts
Rating:
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Alternative (cross code) number:
CA2223908
222-3908
2223908
Caterpillar 2223908 GEAR-AIR COMPR

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$15.20

17 Jun 2025
0.0440[0.02] pounds
DE: Amazon Germany
Salki -Proxxon 2223908 Combination Spanner 8 mm
Salki -Proxxon Proxxon 23908 SlimLine ring combination wrench size 8 mm - ring at the same time for 15 angle || Important: Laser-labelled size makes it easy to find the key. || Grip, well in the hand liegender shank with skin surface finish (statin) || sharp corners and edges. Polished, chrome heads Slim and very thin || Optimal surface protection against rust: 2 x nickel, 1 x chrome.
$14.92
 

02 Aug 2024
0.0440[0.02] Pounds
LU: Amazon Global S
Salki -Proxxon 2223908 Combination Spanner 8 mm
Proxxon Proxxon 23908 SlimLine ring combination wrench size 8 mm - ring at the same time for 15 angle || Important: Laser-labelled size makes it easy to find the key. || Grip, well in the hand liegender shank with skin surface finish (statin) || sharp corners and edges. Polished, chrome heads Slim and very thin || Optimal surface protection against rust: 2 x nickel, 1 x chrome.
$19.10
 

22 Jan 2024
0.0440[0.02] pounds
LU: Amazon Global S
Salki -Proxxon 2223908 Combination Spanner 8 mm
UPMSX Proxxon 23908 SlimLine ring combination wrench size 8 mm - ring at the same time for 15 angle || Important: Laser-labelled size makes it easy to find the key. || Grip, well in the hand liegender shank with skin surface finish (statin) || sharp corners and edges. Polished, chrome heads Slim and very thin || Optimal surface protection against rust: 2 x nickel, 1 x chrome.
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Information:

Possible causes for an FMI 3 diagnostic code are:
The return circuit is open.
The signal circuit is open or the sensor is disconnected.
The signal circuit is shorted to the +battery.
The sensor has failed.
The ECM has failed. This condition is unlikely.Possible causes for an FMI 4 diagnostic code are:
The sensor has failed
The signal circuit for the sensor is shorted to ground
The ECM has failed. A failure of the ECM is unlikely.
Illustration 1 g03750779
Schematic of the passive analog sensors
Note: The diagram above is a simplified schematic of the connections for the passive analog connections. The schematic is electrically correct. However, not all of the possible harness connectors are shown. Refer to the latest revision of the electrical schematic for the specific machine being serviced for the complete schematic.The table below is a reference that can be used when checking the resistance of the temperature sensors listed in the table above.
Table 2
CELSIUS TEMPERATURE FAHRENHEIT TEMPERATURE RESISTANCE
10 50 1991.4
15 59 1571.9
20 68 1249.5
25 77 1000
30 86 805.5 Diagnostic Trouble Code Procedure
Note: Prior to beginning this procedure, inspect the harness connectors that are involved in this circuit. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all connections in the circuit are clean, secure, and in good condition. Check the wiring for pinch points or abrasions. Look for and repair areas that indicate wires are exposed. If a problem with a connection is found, correct the problem and verify that this diagnostic code is active before performing a troubleshooting procedure.
Table 3
Troubleshooting Test Steps Values Results
1. Identify The Active DTC Code Associated With The Suspect Circuit
Code present. FMI 3 diagnostic code, proceed to Test Step 2.
FMI 4 diagnostic code, proceed to Test Step 5.
Begin Process For FMI 3 Troubleshooting HERE
2. Check The Sensor
Note: See Table 2 for a list of resistances related to specific temperature values. The maximum resistance for the sensor is 33,650 Ω, the minimum is 51.2 Ω.
A. Turn the key start switch and the disconnect switch to the OFF position.
B. Disconnect the sensor from the harness.
C. Measure the resistance between pin 1 and 2 of the sensor.
The resistance reading agrees with the values from Table 2. OK - The resistance reading agrees with the values in 2.
Proceed to Test Step 3.
NOT OK - The resistance reading does not agree with the values in 2.
Repair: Replace the sensor.
Proceed to Test Step 7.
3. Check For An Open In The Sensor Circuit
A. The key start switch and disconnect switch remain in the OFF position.
B. The harness connector remains disconnected from the sensor.
C. Disconnect the J1 and J2 connectors from the ECM.
D. At the harness connector for the sensor install a jumper wire.
E. At the harness connector for the ECM measure the resistance at the contacts for the sensor.
The resistance reading is less than 5 Ω. OK - The resistance is less than 5 Ω.
Proceed to Test Step 4.
NOT OK - The resistance is greater than 5 Ω.
Repair: Either the signal or the return circuit wire is open. Repair or

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