21939135 Volvo.Penta Wiring harness, extension cable

Table 1
Diagnostic Codes Table    
Code and Description    Conditions which Generate this Code    System Response    
337-2 Remote Emergency Stop Switch erratic, intermittent, or incorrect     The two inputs from the emergency stop switch are in the opposite state.     The code is logged.    
E264(3) Emergency Stop Activated     The emergency stop switch has been activated.     The engine will be shutdown.    The Electronic Control Module (ECM) receives two signals from the emergency stop switch. The signals allow the ECM to determine the status of the emergency stop switch. The ECM will shut down the engine when both of the signals are open. When both of the signals are connected to the −Battery the emergency stop switch is not active and the engine will run. Refer to Illustration 1.If two different signals are detected during the powerup, the ECM will determine that one of the signals is incorrect. A diagnostic code will be logged and a diagnostic code will remain active. The engine will continue to run when the ECM detects two different signals. If both of the signals are open, the engine will stop.The customer can install multiple emergency stop switches. When the Engine Control Switch (ECS) is turned to the ON position, the engine will begin the sequence for start-up. When the emergency stop switch is activated the ECM will stop firing the injectors. The engine will stop. When an emergency stop signal is received by the ECM, the ECM will activate the output for the solenoid valve that controls the air shutoff valve. When the solenoid valve activates, the air shutoff valve closes removing the intake air to the engine. The air shutoff valve must be manually opened in order to start the engine.Note: The air shutoff is optional. A programmable parameter needs to be set with Cat ET in order to enable the air shutoff.Note: If the E264(3) code is active the emergency stop has been activated and the engine will be shutdown. Determine the reason for the shutdown and verify that the situation is resolved. Electrical power to the ECM must be removed for three seconds in order to clear this event.
Illustration 1 g01443822
Typical schematic
Illustration 2 g01444508
Location of the ECM connectors (1) J2/P2 ECM connectors (2) J1/P1 ECM connectors
Illustration 3 g01444763
P1 ECM connector (P1-21) Start/Run/Stop 1 (P1-22) Start/Run/Stop 2 (P1-23) E-Stop 1 (P1-28) E-Stop 2 (P1-52) +Battery (P1-53) +Battery (P1-55) +Battery (P1-56) Air shutoff tripped detection (P1-63) −Battery (P1-65) −Battery (P1-67) −Battery (P1-70) Keyswitch
Illustration 4 g01444774
P2 ECM connector (P2-13) Digital return (P2-66) Air shutoff
Illustration 5 g01444765
Generator connector (Terminal 4) auxiliary power (Terminal 5) auxiliary power (Terminal 15) Digital return (Terminal 17) E-Stop 2 (Terminal 18) Keyswitch (Terminal 19) E-Stop 1 (Terminal 23) Timer/ShutdownTest Step 1. Inspect Electrical Connectors and Wiring
Turn the ECS to the OFF position. Turn the main disconnect switch to the OFF position.
Thoroughly inspect the J1/P1 ECM connector and the J2/P2 ECM connector. Inspect all of the connectors that are associated with the circuit.Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connectors that are associated with the circuit.
Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and wiring for abrasion and for pinch points.Expected Result:All connectors, pins and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion or of pinch points.Results:
OK - The harness and wiring appear to be OK. Proceed to Test Step 2.
Not OK - There is a problem in the wiring harness.Repair: Perform the following repair:Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled. Refer to Troubleshooting, "Electrical Connectors - Inspect".Verify that the repair eliminates the problem.STOPTest Step 2. Check for an Active Diagnostic Code
Turn the ECS to the STOP position. Turn the main disconnect switch to the ON position.
Start Cat ET.
Check for an active 337-2 diagnostic code.Expected Result:The 337-2 diagnostic code is not active. Results:
OK - The 337-2 diagnostic code is not active. Proceed to Test Step 3.
Not OK - The 337-2 diagnostic code is active.Repair: If the diagnostic code 337-2 is active, the wires between the ECM and the emergency stop switch are in opposite states. Check the wires for an open circuit.
Turn the ECS to the OFF position. Turn the main disconnect switch to the OFF position.
Disconnect the J1/P1 ECM connector.
Measure the resistance between P1-23 at ECM connector P1 and terminal 2 at the emergency stop switch.
Measure the resistance between P1-28 at ECM connector P1 and terminal 4 at the emergency stop switch.If a resistance measurement indicates an open circuit, repair the wires and/or connectors between the emergency stop switch and the ECM.STOPTest Step 3. Check the Status while the Emergency Stop Switch is Active
Turn the main disconnect switch to the ON position. Turn the ECS to the STOP position.
Start Cat ET.
Observe the status of the emergency stop switch on Cat ET.
Activate the emergency stop switch. If multiple emergency stop switches have been installed, ensure that any other emergency stop switch has not been activated.Expected Result:The status for the emergency stop switch reads "ON".Results:
OK - The status for the emergency stop switch reads "ON". Proceed to Test Step 4.
Not OK - The status for the emergency stop switch does not read "ON". Proceed to Test Step 5.Test Step 4. Check the Status while the Emergency Stop Switch is Not Active
Deactivate the emergency stop switch. Remove electrical power from the ECM for 3 seconds.Note: Ensure that the solenoid valves retract