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BRACKET 7B0267 - Caterpillar



7B0267 BRACKET Caterpillar parts BRACKET
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Alternative (cross code) number:
CA7B0267
7B-0267
7B0267
Caterpillar 7B0267 BRACKET

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Illustration 1 g01209828
Feedback circuit connections for the Rear Axle (RAX) Pump Drive Oil Diverter Solenoid
The rear axle pump drive oil diverter solenoid is controlled by the rear axle relay based on the input from the brake ECM. When the solenoid is energized by the relay, a feedback signal is sent to the ECM in order to indicate solenoid status. This diagnostic code is associated with the rear axle supply solenoid feedback. The ECM expects to see the energize current at the feedback contact when the solenoid is energized and no current when the solenoid should not be energized. The FMI 06 means that the ECM has determined that the feedback current for the solenoid circuit is above what is expected.Some possible causes of this diagnostic code are listed:
The feedback circuit of the solenoid is shorted to ground.
The solenoid has failed.
The relay has failed.
The ECM has failed. This is unlikely.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 1437 FMI 06 is active before performing this procedure.Test Step 1. CHECK THE SOLENOID
Turn the disconnect switch and the key start switch to the ON position. Do not start the engine.
Observe the status of the diagnostic code.
Disconnect the solenoid with the active diagnostic code from the machine harness. Expected Result:CID 1437 FMI 06 changes to CID 1437 FMI 03 when the solenoid is disconnected.Results:
YES - CID 1437 FMI 06 changes to CID 1437 FMI 03 when the solenoid is disconnected. The circuit is correct.Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid.STOP
NO - CID 1437 FMI 06 remains active. Proceed to Test Step 2.Test Step 2. CHECK THE RELAY
Keep the disconnect switch and the key start switch in the ON position. Do not start the engine.
The solenoid remains disconnected from the machine harness.
Disconnect the RAX relay with the active diagnostic code from the machine harness. Note: The RAX relay is typically located in the rear of the cab.Expected Result:CID 1437 FMI 06 changes to CID 1437 FMI 03 when the relay is disconnected.Results:
YES - CID 1437 FMI 06 changes to CID 1437 FMI 03 when the relay is disconnected. The circuit is correct.Repair: The relay has failed. Repeat this test "CHECK THE RELAY" in order to verify the relay failure. Replace the relay.STOP
NO - CID 1437 FMI 06 remains active. Proceed to Test Step 3.Test Step 3. CHECK THE FEEDBACK CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUND
Turn the key start switch and the disconnect switch to the OFF position.
The solenoid and relay remain disconnected from the machine harness.
Disconnect the machine harness ECM connectors J1 and J2 from the ECM.
At the machine harness ECM connectors, measure the resistance from the feedback contact J1-35 (wire J886-GN(Green)) to frame ground or to a ground contact on connectors J1 or J2. The ground contact on connector


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