22079926 Volvo.Penta Upper gear, complete

Illustration 1 g00997783
Schematic of the output circuit for the fuel control relayTest Step 1. Inspect the Electrical Connectors and Wiring
Illustration 2 g00987150
Terminal box for the master ECM (1) J2/P2 connectors for the master ECM (2) J13/P13 connectors for the fuel control relay (3) Emergency stop switch (4) Wiring harness (5) 16 amp circuit breaker (6) Wiring harness for the customer
Set the engine control to the OFF/RESET mode. Switch the 16 amp circuit breaker OFF.Note: For the following steps, refer to Troubleshooting, "Inspecting Electrical Connectors".
Thoroughly inspect the following connectors and the wiring harnesses for the connectors:
Master ECM J2/P2 connectors
J13/P13 connectors on the terminal box for the master ECM
Connectors for the fuel control relay
Check the torque of the Allen head screw for the ECM connectors. The proper torque is 6 1 N m (55 9 lb in).
Illustration 3 g00987167
Harness side of the master ECM P2 connector (P2-11) Circuit driver for the fuel control relay (P2-21) Return
Illustration 4 g00920212
Terminal box for the master ECM (7) Connector P13 for the fuel control relay (P13-A) Circuit driver for the fuel control relay (P13-B) Return
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the fuel control relay.
Illustration 5 g00869737
Typical fuel control relay
Check the harness and wiring for abrasion and pinch points from the fuel control relay to the master ECM.Expected Result:All connectors, pins, and sockets are connected properly. The connectors and the wiring do not have corrosion, abrasion, or pinch points.Results:
OK - The components are in good condition with proper connections. Proceed to Test Step 2.
Not OK - The components are not in good condition and/or at least one connection is improper.Repair: Perform the necessary repairs, when possible. Replace parts, if necessary.STOPTest Step 2. Check for Diagnostic Codes
Connect Cat ET to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools".
Switch the 16 amp circuit breaker ON. Set the engine control to the STOP mode.
Wait for 30 seconds and use Cat ET to check for an active "17-05 Fuel Shutoff Valve open circuit" diagnostic code.If there is an active "17-05 Fuel Shutoff Valve open circuit" diagnostic code, proceed to the "Results" for this Test Step. Otherwise, continue this procedure.Note: The "17-05 Fuel Shutoff Valve open circuit" diagnostic code cannot be detected when the output for the fuel control relay is ON. The output is ON when the engine control is in the START mode and the engine speed is not zero.
Use Cat ET to check the logged diagnostic codes. If there is a "17-06 Fuel Shutoff Valve short to ground" or a "17-12 Fuel Shutoff Valve malfunction" diagnostic code, clear the code.Note: This diagnostic condition cannot be detected by the master ECM when the output for the fuel control relay is OFF. The output is OFF when the engine control is in the STOP mode.
To prevent the engine from starting, shut the gas supply OFF.Note: To provide the output for the fuel control relay, the sequence for engine start-up must be initiated. Otherwise, a "17-06 Fuel Shutoff Valve short to ground" or a "17-12 Fuel Shutoff Valve malfunction" diagnostic code cannot be generated.
Set the engine control to the START mode for at least six seconds. Then set the engine control to the STOP mode.
Use Cat ET to look for a logged "17-06 Fuel Shutoff Valve short to ground" or a "17-12 Fuel Shutoff Valve malfunction" diagnostic code again.Expected Result:When the engine control was in the STOP mode, there was no active "17-05 Fuel Shutoff Valve open circuit" diagnostic code.After the engine was cranked, there was no logged "17-06 Fuel Shutoff Valve short to ground" or "17-12 Fuel Shutoff Valve malfunction" diagnostic code.Results:
OK - No diagnostic codes were generated. The output for the fuel control relay seems to be OK at this time. The initial diagnostic code was probably caused by a poor electrical connection.Repair: If there is an intermittent problem that is causing the codes to be logged, refer to Troubleshooting, "Inspecting Electrical Connectors".STOP
Not OK ("17-05 Fuel Shutoff Valve open circuit" diagnostic code) - A "17-05 Fuel Shutoff Valve open circuit" diagnostic code was activated. This can be caused by an actual open circuit or by a short circuit to the +battery side. Proceed