VALVE GP-SOLENOID 1446294 - Caterpillar

class="content_table content_table_8787" BORDER="0">
Illustration 6 g01320528
Connector locations
(1) A-C1/E-C2 RH rigid harness connectors
(2) A-C2/J-C2 RH rigid harness connectors
(3) P-C1/A-C90 Connectors for the power distribution panel
(4) P-C2/A-C91 Connectors for the power distribution panel
(5) G-C6/F-C2/F-C1/A-C92 Connectors for a RH Control panel
(6) C-C22 Primary ECM connector P2
(7) C-C15 Primary ECM connector P1
(8) C-C28 Secondary ECM connector P2
(9) C-C29 Secondary ECM connector P1
(10) G-C6/F-C2/F-C1/C-C17 Connectors for a LH Control panel
(11) C-C18/TB-C1 Customer connectors
(12) C-C2/J-C1 LH rigid harness connectors
(13) C-C1/E-C1 LH rigid harness connectors
Illustration 7 g01234146
Location of ECM connectors
Note: For the locations of the sensors on the engine, refer to Troubleshooting, "Component Location".Test Step 1. Check for "Active" or "Logged" Diagnostic Codes
Connect Caterpillar Electronic Technician (ET) to the service tool connector.
Restore electrical power to the ECM.
Monitor the diagnostic codes on Cat ET. Check and record any diagnostic codes. Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
Determine if a diagnostic code has occurred several times. Note: A diagnostic code that is logged several times is an indication of an intermittent problem. Most intermittent problems are the result of a bad connection between a socket and a pin in a connector or a bad connection between a wire and a terminal. The problem may be caused by moisture, corrosion, or wear.
Determine if the problem is active and related to one of the following diagnostic codes:
3
4Expected Result:A diagnostic code is not active.Results:
OK - A diagnostic code is not active.Repair: The problem may be intermittent. If the problem is intermittent, refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - A diagnostic code is active. Proceed to Test Step 2.Test Step 2. Check the 5 Volt Supply Voltage at the Sensor Connector
Do not disconnect the suspect connector.
Connect a voltmeter between pin A and pin B on the sensor side of the connector for the suspect sensor.
Measure the voltage between pin A and pin B for the suspect sensor(s).
Wiggle the harness while you monitor the voltage on the voltmeter. Perform the 45 N (10 lb) pull test on each wire in the circuit. Each terminal and each connector should easily withstand 45 N (10 lb) of tension and each wire should remain in the connector body. This test checks whether the wire was properly crimped in the terminal and whether the terminal was properly inserted into the connector. Expected Result:The supply voltage is 5.0 0.5 VDC.Results:
OK - The supply voltage is 5.0 0.5 VDC. An active 3 diagnostic code is present. Proceed to Test Step 3.
OK - The supply voltage is 5.0 0.5 VDC. An active 4 diagnostic code is present. Proceed to Test Step 5.
Not OK - The supply voltage is not 5.0 0.5 VDC.Repair: There is an open in the wiring or connectors between the suspect sensor and the ECM. Inspect the wiring and connectors. Refer to Illustration 1 for a schematic of the circuit.STOPTest Step 3. Check for Battery Voltage on the Signal Wire
Measure the voltage on the harness side of the sensor connector between pin B and pin