YOKE 0959814 - Caterpillar

Test Step 1. Inspect the Electrical Connectors and the Wiring
Turn the keyswitch to the OFF position.
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Location of the J1/P1 ECM connectors (typical engine view) (1) J1/P1 ECM connectors
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Location of the engine interface connectors (typical left side engine view) (2) engine interface connectors
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Components for the ether injection system (typical view) (3) Ether injection solenoid
Thoroughly inspect connectors (1) and (2). Also, thoroughly inspect the connectors for solenoid (3). Refer to Troubleshooting, "Electrical Connectors - Inspect".
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Terminal locations at the P1 ECM connector for the ether injection system (P1-18) Solenoid return (P1-20) Ether injection solenoid
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Terminal locations at the engine interface connector for the ether injection solenoid (Terminal 1) Ether injection solenoid (Terminal 10) Solenoid return
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Terminal locations at the connector for the ether injection solenoid (Terminal 1) Ether injection solenoid (Terminal 2) Solenoid return
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the ether injection system.
Check the torque of the allen head screws for each of the ECM connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points from the ether injection solenoid to the ECM connector.Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted, and the harness and wiring are free of corrosion, of abrasion and of pinch points.Results:
OK - The connectors and the wiring appear to be OK. Proceed to Test Step 2.
Not OK - The connectors and/or the wiring are not OK.Repair: Repair the connectors and/or the wiring. Replace parts, if necessary. Verify that the problem is resolved.STOPTest Step 2. Check the Ether Canisters for Fluid
Ensure that the electrical power is removed from the ECM.
Remove the ether canister from the ether valve.
Determine if the canister is empty.Expected Result:The ether canister is not empty.Results:
OK - The ether canister is not empty. Remove the ether canister from the ether valve for the remainder of this test. Proceed to Test Step 3.
Not OK - The ether canister is empty.Repair: Replace the empty ether canister with a full ether canister. Retry the system.STOPTest Step 3. Check for Signal Voltage at the Harness Connector for the Ether Injection Solenoid
Turn the keyswitch to the OFF position.
Disconnect the harness connector at the ether injection solenoid.
Turn the keyswitch to the ON position.
Proceed to the "Diagnostic Overrides" screen on Cat ET.
Activate the ether injection system. The system will activate for ten seconds.
Check for a signal voltage between the terminals at the harness connector for the ether injection solenoid.
Turn the keyswitch to the OFF position.Expected Result:The signal voltage is