Section 7 - Troubleshooting
Page 136 90-864197084 NOVEMBER 2008
Low Engine Oil Pressure
Possible Cause Remedy
Insufficient oil in crankcase. Check and add oil.
Excessive oil in crankcase (causing it to
become aerated).
Check and remove required amount of oil. Check for cause of excessive oil
(improper filling).
Diluted or improper viscosity oil.
Change oil and oil filter, using correct grade and viscosity oil. Determine cause
for dilution (excessive idling).
Battery Will Not Recharge
Possible Cause Remedy
Excessive current draw from battery. Turn off non‑essential accessories.
Alternator drive belt loose or in poor condition. Replace and/or adjust.
Unacceptable battery condition. Test battery, replace if necessary.
Loose or dirty electrical connections or damaged
wiring.
Check all associated electrical connections and wires (especially
battery cables). Clean and tighten faulty connections. Repair or replace
damaged wiring.
Faulty alternator Test alternator output, replace if necessary.
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.
Response to joystick input is erratic, or the joystick
operates independent of input.
Ensure there are no radios or other sources of electronic or magnetic
interference near the joystick.
The joystick does not function properly and a fault code
is set.
Check VesselView for Guardian fault codes that indicate reduced
engine power. If found, have the system checked by your authorized
Mercury MerCruiser dealer.
The joystick does not work; No fault code is set and
cruise control engaged.
Disengage cruise control.
Electronic Remote Controls
Symptom Remedy
The ERC (electronic remote control) lever is too hard or
too easy to move out of neutral detent.
Adjust detent tension. See Section 2, Dual Handle Electronic
Remote Control with DTS Trackpad Features and Operation .
The ERC lever has too much or too little resistance
through its range of motion.
Adjust the handle tension screw. See Section 2, Dual Handle
Electronic Remote Control with DTS Trackpad Features and
Operation .
The ERC lever increases engine RPM, but does not
engage gears and the boat does not move.
Key off and key on.
Check the "Throttle Only" button on the DTS trackpad. Put the ERC
levers in neutral and push the button to disengage, if the light is on.
Engage gears manually. See Section 3, Gear Engagement—
Emergency Procedure.
Contact your authorized Mercury MerCruiser dealer.
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