RETAINER 5370222 - Caterpillar

Illustration 4 g00815656
Connector for the ether relayNote: The ether canister must be removed prior to activating this test.
Ensure that all connectors are connected to the wiring harness.
Turn the keyswitch to the ON position.
Proceed to the "Diagnostic Override Screen" in ET.
Activate the ether injection system.Note: The diagnostic override will only activate the ether relay for 3 seconds.
Measure the voltage across terminal 86 (Solenoid Return) and terminal 85 (Ether ON) of the ether relay.Expected Result:The voltage should be 24.0 8.0 VDC.Results:
OK - Proceed to Test Step 10.
Not OK - Proceed to Test Step 12.Test Step 10. Check the Output Voltage of the Ether Relay
Illustration 5 g00815656
Connector for the ether relayNote: The ether canister must be removed prior to activating this test.
Ensure that all connectors are connected to the wiring harness.
Turn the keyswitch to the ON position.
Proceed to the "Diagnostic Override Screen" in ET.
Activate the ether injection system.Note: The diagnostic override will only activate the ether relay for 3 seconds.
Measure the voltage across terminal 86 (Solenoid Return) and terminal 30 (Solenoid Power) of the ether relay.Expected Result:The voltage should be 24.0 8.0 VDC.Results:
OK - There is a problem in the wiring between the ether relay and the ether solenoid.Repair: Repair the circuit.Verify that the repair eliminates the problem. Stop.
Not OK - Proceed to Test Step 11.Test Step 11. Check the Power Supply to the Ether Relay
Illustration 6 g00815656
Connector for the ether relay
Measure the voltage across terminal 87 (+Battery) and chassis ground.Expected Result:The voltage should be 24.0 8.0 VDC.Results:
OK - The ether relay is faulty.Repair: Replace the ether relay.Verify that the repair eliminates the problem. Stop.
Not OK - There is a problem with the wiring that is between the ether relay and the battery. Repair: Repair the circuit.Verify that the repair eliminates the problem. Stop.Test Step 12. Check for Shorts in the Wiring Harness from the Ether Relay to the ECM
Illustration 7 g00747664
ECM connector P1
Disconnect ECM connector J1/P1.
Disconnect the plug for the ether relay.
Measure the resistance between P1:40 (Ether Start Relay) and engine ground.Expected Result:The resistance should be greater than 20,000 Ohms.Results:
OK - Proceed to Test Step 13.
Not OK - There is a short between the ECM and the ether relay.Repair: Repair the circuit. Stop.Test Step 13. Check the Voltage for the Ether Relay at the ECM
Illustration 8 g00747664
Note: The ether canister must be removed prior to activating this test.
Turn the keyswitch to the OFF position.
Install a 7X-1715 Adapter Cable (40 Pin Breakout) at ECM connector J1/P1.
Turn the keyswitch to the ON position.
Proceed to the "Diagnostic Override Screen" in ET.
Activate the ether injection system.Note: The diagnostic override will only activate the ether relay for 3 seconds.
Measure the voltage between P1:40 (Ether Start Relay) and engine ground.Expected Result:The voltage should be 24.0 8.0 VDC.Results:
OK - The ECM is supplying the correct voltage. There may be an open circuit or a short circuit in the harness.Repair: Repair the circuit.Verify that the repair eliminates the problem. Stop.
Not OK - The ECM is not supplying the correct voltage.Repair: Verify your results. Replace the ECM. Refer to Troubleshooting,