22664771 Volvo.Penta Shaft

Illustration 1 g01074271
Lamp circuits without Eaton Top 2 transmission
Illustration 2 g01074273
Lamp circuits with Eaton Top 2 transmission and dedicated PTO
Illustration 3 g01074276
Terminal locations at the ECMTest Step 1. Inspect the Electrical Connectors and the Wiring
Thoroughly inspect ECM vehicle harness connector J1/P1, the firewall bulkhead connector, and the suspect terminal for the lamp. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that is associated with the suspect terminal for the lamp.
Check the allen head screws for each of the ECM connectors for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque value.
Check the harness and wiring for abrasion and for pinch points from the battery to the ECM.Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted and the harness and wiring are free of corrosion, of abrasion, or of pinch points.Results:
OK - Proceed to Test Step 2.
Not OK - 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.STOPTest Step 2. Check for Normal Operation of the Warning Lamp(s)
Monitor the check engine lamp. Turn the keyswitch to the ON position, while the engine is off. The lamp should turn on for five seconds. Then, the lamp should turn off.The lamp will continue flashing if there is an active diagnostic code. If there is an active diagnostic code, connect the Caterpillar Electronic Technician (ET) in order to read the active diagnostic code. Troubleshoot the problem.Note: The warning lamp will not turn on until the engine is cranked.
Connect Cat ET in order to verify that the "Engine Monitoring" has been programmed to "Warning", "Derate", or "Shutdown". If "Engine Monitoring" is programmed to "Off", the warning lamp is not used and the ECM will not turn on the lamp.While the warning lamp is being observed, start the engine. The warning lamp should turn on for a minimum of two seconds after the engine starts. Then, the warning lamp should turn off. If the lamp remains on, immediately shut down the engine.Expected Result:The warning lamp turns on and the warning lamp turns off per the above description.Results:
OK - The lamp appears to operating correctly at this time.STOP
Not OK - The lamp is not operating correctly.Repair: Perform the following diagnostic procedure:Use ET to determine if an "Engine Monitoring" condition is causing the lamp to turn on. If an "Engine Monitoring" condition is not present, perform the following diagnostic procedure. Proceed to Test Step 3.Test Step 3. Test the Lamp Circuit
Disconnect ECM vehicle harness connector J1/P1.
Fabricate a jumper wire that is long enough to create a test circuit across the ECM connector. Crimp a connector pin to each end of the jumper wire.
Insert the jumper into the terminal location for the suspect lamp at the P1 ECM connector. The jumper can be inserted into the following terminals in order to test the appropriate lamp circuit:
P1-22 (Check Engine Lamp)
P1-27 (Warning Lamp)
P1-21 (PTO Switch On Lamp)
Connect the other side of the jumper wire to P1-5 (-Battery).
Turn the keyswitch to the ON position.
While the lamp is being watched, insert the jumper wire and remove the jumper wire. Refer to Illustration 3.Expected Result:Result 1 The lamp turns on while the jumper is connected to both sockets. The lamp turns off when the jumper is removed from one of the sockets.Result 2 The lamp does not turn on while the jumper is connected to both sockets.Result 3 The lamp stays on while the ECM vehicle harness connector is disconnected.Results:
Result 1 - The warning lamp circuit is functioning properly. Proceed to Test Step 4.
Result 2 - The lamp did not turn on. The vehicle's lamp circuit is not functioning properly. The lamp is probably burned out or there is a problem in the wiring from the cab to either the ECM or to the +Battery connection. Repair the lamp circuit or send the vehicle to the OEM dealer for repairs.STOP
Result 3 - Repair: Perform the following diagnostic procedure:The circuit between the ECM and the lamp is shorted to chassis ground. Repair the circuit or send the vehicle to the OEM dealer for repairs.STOPTest Step 4. Check for Proper Operation of the ECM
Disconnect ECM vehicle harness connector J1/P1.
Insert a 40-pin breakout T between the ECM vehicle harness connectors J1 and P1.
Insert the multimeter probe into terminal 5 (-Battery) and insert the other probe into terminal 4 (Unswitched +Battery) of the breakout T. Connect a test lamp to the probes.
The test lamp should turn on. If the test lamp does not turn on, either the test lamp is faulty or the wiring to the ECM is faulty. Continue with this step if the lamp turns on.
Leave the multimeter probes connec