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FRAME GP-UPPER 3157270 - Caterpillar



3157270 FRAME GP-UPPER Caterpillar parts FRAME
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61
Alternative (cross code) number:
CA3157270
315-7270
3157270
Caterpillar 3157270 FRAME GP-UPPER

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Illustration 1 g02555858
Connections of Supply Voltage Circuit for Transmission ECM
This diagnostic code is recorded when the system voltage is greater than 32 DCV. The solenoids may be damaged if the voltage remains high for an extended time. The possible causes of this diagnostic code are listed below:
A charging system component has failed.
The harness wiring has failed.
The ECM has failed. The failure of the ECM is unlikely. Test Step 1. CHECK THE CHARGING SYSTEM.
Turn the key start switch to the ON position.
Observe the status of the diagnostic code. Expected Result:The diagnostic code is active. See Special Instruction, REHS0354.Results:
YES - The diagnostic code is active. Proceed to Test Step 3.
NO - The diagnostic code is NOT active. Proceed to Test Step 2.Test Step 2. CHECK THE CHARGING SYSTEM.
Start the engine.
Observe the status of the diagnostic code. Expected Result:The diagnostic code is active. See Special Instruction, REHS0354.Results:
YES - The diagnostic code is active.Repair: The charging system is charging at an excessive voltage. Check the charging system.STOP
NO - The diagnostic code is not active. Repair: There is no problem at this time. Watch for a recurrence.STOPTest Step 3. CHECK THE BATTERY VOLTAGE.
The engine is stopped. At the battery, measure the voltage. Expected Result:The voltage is less than 32 VDC.Results:
YES - The voltage is less than 32 VDC.Repair: Exit this procedure and perform the diagnostic code procedure again. If the problem persists, the ECM may have failed. Prior to replacing the ECM, always contact your dealership for possible consultation with Caterpillar. This consultation may greatly reduce repair time. If the cause of the diagnostic code is not found, replace the power train ECM. See the Testing and Adjusting, "Electronic Control Module (ECM) - Replace".STOP
NO - The voltage is not less than 32 VDC.Repair: The charging system is charging at an excessive voltage. Check the charging system. See Special Instruction, REHS0354.STOP


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