Section 3 - Troubleshooting
90-8M0099745 eng MAY 2015 Page 31
!
WARNING
Engine components and fluids are hot and can cause serious injury or death. Allow the engine to cool before removing any
components or opening any fluid hoses.
2. Unplug the shift actuator wiring harness connector.
3. Move the shift lever into the neutral position. The shift actuator is in the neutral position when the shift lever is straight up
and the shift interrupt switch is fully engaged.
a - Harness
b - Shift lever
c - Shift lever in neutral
position
d - Shift lever in forward
position
e - Shift lever in reverse
position
f - Gear position indicator
switch
4. With the drive in neutral, place the ERC into the neutral (idle) position.
5. Reset the lanyard.
!
WARNING
A spinning propeller, a moving boat, or any solid device attached to the boat can cause serious injury or death to swimmers.
Stop the engine immediately whenever anyone in the water is near your boat.
6. Ensure that no one is in the water near the boat, then start the engine.
7. With the engine running at idle speed, the drive can be shifted into gear and out of gear by manually moving the shift lever.
NOTE: Engine speed will be limited to 1000–1200 RPM while operating in emergency shift override. The Auto Heading
feature using the Precision Pilot trackpad will still function, but is limited to this reduced RPM setting.
IMPORTANT: The boat's stopping distance increases during manual gear engagement operation.
Check VesselView First
Your VesselView display is the primary information source for the various functions of your boat. Consult the VesselView
display if you suspect something is wrong. VesselView displays faults and other information that can be helpful in determining
the current status of various systems that could be causing your concern and the solution to the problem.
Diagnosing DTS Problems
Your authorized Mercury MerCruiser dealer has the proper service tools for diagnosing problems on digital throttle and shift
(DTS) systems. The engine control module (ECM)/propulsion control module (PCM) on these engines has the ability to detect
some problems with the system when they occur, and store a Trouble Code in the ECM/PCMs memory. This code can then be
read later by a service technician using a special diagnostic tool.
Engine Guardian System
The Engine Guardian System monitors the critical sensors on the engine for any early indications of problems. The system will
respond to a problem by emitting a continuous beep and/or reducing engine power in order to provide engine protection.
If Guardian System has been activated, reduce throttle speed. The horn will turn off when throttle speed is within the allowable
limit. Consult an authorized Mercury MerCruiser dealer for assistance.
Troubleshooting Charts
Joystick
Symptom
Remedy
The joystick does not control the boat.
One or both remote controls are not in neutral. Put both remote
controls in neutral.
One or both engines are not running. Start the engine or engines.
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