35928A 1 Mercruiser TAPERED ROLLER BEARING ASSEMBLY

Table 1
Switch 2     Switch 1     Mode Number     C4.4 Engine Rating     Droop (%) (1)    
Throttle 1 Throttle 2 Torque Speed Control
Open     Open     1     80 KW @ 2200 RPM     10     10     10    
Open     Closed     2     80 KW @ 2200 RPM     5     2     0    
Closed     Open     3     100 KW @2200 RPM     10     10     10    
Closed     Closed     4     100 KW @ 2200 RPM     5     5     0    
( 1 ) Throttle droop can be configured in 1% increments.
Table 2
Switch 2     Switch 1     Mode Number     C6.6 Engine Rating     Droop (%) (1)    
Throttle 1 Throttle 2 Torque Speed Control
Open     Open     1     100 KW @ 2200 RPM     10     10     10    
Open     Closed     2     100 KW @ 2200 RPM     5     2     0    
Closed     Open     3     120 KW @2200 RPM     10     10     10    
Closed     Closed     4     120 KW @ 2200 RPM     5     5     0    
( 1 ) Throttle droop can be configured in 1% increments.
Table 3
Function     P1 Connector Pin Assignment    
Mode Switch 1     39    
Mode Switch 2     46    
Switch return (Ground)     35    
Illustration 1 g01805358
Typical schematic for the mode selector switches
Illustration 2 g01805359
View of the pin locations on the P1 connector for the circuit for mode selection (35) Mode switch return (GND) (39) Mode switch 1 (46) Mode switch 2Test Step 1. Inspect Electrical Connectors and Wiring
Turn the keyswitch OFF.
Thoroughly inspect the P1 connector. Thoroughly inspect the mode switch connectors, plugs and interconnections on the harness. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the P1 connector that are associated with the mode selector switches.
Check the screw for the ECM connector for the correct torque of 5.0 N m (44 lb in).
Check the harness for abrasions and for pinch points from the battery to the ECM.Results:
OK - Proceed to Test Step 2.
Not OK - Repair: Repair the connectors or the harness and/or replace the connectors or the harness. Ensure that all of the seals are correctly in place and ensure that the connectors are completely coupled.Use the electronic service tool in order to clear all logged diagnostic codes and then verify that the repair eliminates the fault.STOP
- If the fault has not been eliminated proceed to Test Step 2.Test Step 2. Check the Status of the Mode Selector Switch
Turn the keyswitch to the OFF position.
Connect the electronic service tool to the diagnostic connector.
Turn the keyswitch to the ON position.
Monitor the status screen on the electronic service tool. Cycle the mode switch to the ON position and to the OFF position.Expected Result:The switch status should change as you cycle the mode switches. When the switch is in the OFF position, the switch is open. When the switch is in the ON position, the switch is closed.Results:
OK - Repair: Verify that the status of the switch changes as the switch is cycled. STOP
Not OK - There is a fault with the circuit for the mode selector switch. Proceed to Test Step 3.Test Step 3. Insert a Jumper at the Suspect Mode Switch
Turn the keyswitch to the OFF position.
Perform the following procedure to test the circuit of mode selector switch No. 1. Place a jumper wire across the contacts of switch No. 1.
Perform the following procedure to test the circuit of mode selector switch No. 2. Place a jumper wire across the contacts of switch No. 2.
Turn the keyswitch to the ON position. Monitor the status screen on the electronic service tool. Connect the jumper wire and then disconnect the jumper wire. Expected Result:When the jumper wire is connected the switch should be in the CLOSED position.Results:
OK - Repair: Verify that the jumper wire has been removed. The suspect mode selector switch is faulty. Replace the switch and verify that the repair has eliminated the fault.STOP
Not OK - Proceed to Test Step 4.Test Step 4. Measure the Resistance of the Wire Harness at the ECM
Turn the keyswitch to the OFF position.
Disconnect P1 from J1.
Measure the resistance between P1:35 switch return and the following ECM pins:
P1:46Mode Switch No. 2
P1:39 Mode Switch No. 1
Cycle each mode switch to the OFF position and to the ON position.Expected Result:The resistance is less than 10 Ohms in the mode switch ON position.The resistance is more than 4000 Ohms in the mode switch OFF position.Results:
OK - There is no faults in the harness. Proceed to Test Step 5.
Not O