I am a newbie to boating so you need to excuse my ignorance. I have a Chaparral with two Mercruiser5.0 MPI engines. I had a problem with my starboard engine (shut down) and so I used Diacom to read ECM codes (I didn't include the following alarms to meet the posting length restrictions [TRIM CKT HI, STEER CKT LO, FUEL LVL CKT HI and PITOT CKT LO] . The LOW DRIVE LUBE code is pretty obvious and I looked at the reservoir and it is empty. Would that cause the engine to shut off? Should I add additional lube in the reservoir and run the engine for a couple minutes to try and determine if there is a leak?

I also see "Starboard Clnt Overheat: 40" in the report, but don't know what the "40" means? I saw a previous post that indicated that the number indicates the temperature in Fahrenheit, but 40 degrees seem like it shouldn't cause an overheat condition.

FYI: I didn't include the following alarms in the

Thanks in advance.

VEHICLE CONFIGURATION
System Type: MerCruiser PCM555

2. PERFORMANCE DATA
Parameter Description Value Unit

Engine Speed.................. 0 RPM
Available Power............. 100 %
Coolant Temperature........ 55.40 °F
Fuel Flow Rate............. 0.00 GPH
Port Exhst Cool Temp....... 32.00 °F
Sea Pump Pressure.......... 15.71 PSI
Starb Exhst Cool Temp...... 32.00 °F
IAC Duty Cycle............. 0.00 %
Manifold Absolute Pressure. 14.73 PSI
Trim Position.............. 1023 #
Baro Pressure.............. 14.73 PSI
Trim Volts................. 4.99 VDC
Manifold Air Temperature... 59.00 °F
Pitot ADC..................... 0 #
Oil Pressure............... 0.67 PSI
Paddle Wheel.................. 0 Hz
Throttle Position.......... 0.00 %
Sensor Power............... 5.02 VDC
Throttle Sensor Voltage.... 0.65 VDC
Lake/Sea Temp..............429.80 °F
Spark Advance.............. 8.00 DEG
Fuel Level................. 1023 #
Battery Voltage............ 12.46 VDC

3. TROUBLE CODE STATUS

Current ECM Codes

Sensor Fault, click Read Fault button for details

Freeze Frame Data:


4 BLK PSI CKT LO
-----------------------------------------
FF Baro Pressure 14.71 PSI
FF Battery Volts 13.57 VDC
FF Sea Pump Pressure 0.00 PSI
FF Boat Speed 0.00 #
FF Manifold Air Temp 129.20 °F
FF Coolant Temp 147.20 °F
FF Demand 7.46 %
FF Engine Speed 1072 RPM
FF Engine State Running
FF FPC Total 18.2 Counts
FF Frequency Count 5
FF Fuel Level 0.00 %
FF Gear Position In Gear
FF Lake Temp 429.80 °F
FF Engine Load 6.78 %
FF Main Pwr Relay Requests YES
FF Manifold Air Pressure 7.56 PSI
FF Oil Level 0.00 %
FF Port Tab Pos 0.00 %
FF Available Power 100 %
FF Run Time 425.13 hrs
FF Starboard Tab Pos 0.00 %
FF TPS Percent 7.46 %
FF Trim Position 0.00 %

5 ECT TMP CKT HI
-----------------------------------------
FF Baro Pressure 14.64 PSI
FF Battery Volts 13.35 VDC
FF Sea Pump Pressure 1.10 PSI
FF Boat Speed 0.00 #
FF Manifold Air Temp 78.80 °F
FF Coolant Temp -56.20 °F
FF Demand 0.00 %
FF Engine Speed 690 RPM
FF Engine State Running
FF FPC Total 19.0 Counts
FF Frequency Count 0
FF Fuel Level 0.00 %
FF Gear Position In Gear
FF Lake Temp 429.80 °F
FF Engine Load 7.03 %
FF Main Pwr Relay Requests YES
FF Manifold Air Pressure 7.69 PSI
FF Oil Level 0.00 %
FF Port Tab Pos 0.00 %
FF Available Power 100 %
FF Run Time 720.78 hrs
FF Starboard Tab Pos 0.00 %
FF TPS Percent 0.00 %
FF Trim Position 0.00 %

6 NEUTRAL OVERSPE
-----------------------------------------
FF Baro Pressure 14.66 PSI
FF Battery Volts 13.46 VDC
FF Sea Pump Pressure 4.95 PSI
FF Boat Speed 0.00 #
FF Manifold Air Temp 82.40 °F
FF Coolant Temp 107.60 °F
FF Demand 39.62 %
FF Engine Speed 3136 RPM
FF Engine State Running
FF FPC Total 47.7 Counts
FF Frequency Count 4
FF Fuel Level 0.00 %
FF Gear Position Neutral
FF Lake Temp 429.80 °F
FF Engine Load 29.95 %
FF Main Pwr Relay Requests YES
FF Manifold Air Pressure 12.56 PSI
FF Oil Level 0.00 %
FF Port Tab Pos 0.00 %
FF Available Power 100 %
FF Run Time 689.50 hrs
FF Starboard Tab Pos 0.00 %
FF TPS Percent 39.62 %
FF Trim Position 0.00 %

7 LOW DRIVE LUBE
-----------------------------------------
FF Baro Pressure 14.73 PSI
FF Battery Volts 12.36 VDC
FF Sea Pump Pressure 22.20 PSI
FF Boat Speed 0.00 #
FF Manifold Air Temp 132.80 °F
FF Coolant Temp 154.40 °F
FF Demand 0.00 %
FF Engine Speed 196 RPM
FF Engine State Running
FF FPC Total 30.5 Counts
FF Frequency Count 25
FF Fuel Level 0.00 %
FF Gear Position Neutral
FF Lake Temp 429.80 °F
FF Engine Load 17.63 %
FF Main Pwr Relay Requests YES
FF Manifold Air Pressure 15.20 PSI
FF Oil Level 0.00 %
FF Port Tab Pos 0.00 %
FF Available Power 100 %
FF Run Time 806.73 hrs
FF Starboard Tab Pos 0.00 %
FF TPS Percent 0.00 %
FF Trim Position 0.00 %

8 IAC OUTPUT
-----------------------------------------
FF Baro Pressure 14.64 PSI
FF Battery Volts 13.27 VDC
FF Sea Pump Pressure 36.56 PSI
FF Boat Speed 0.00 #
FF Manifold Air Temp 132.80 °F
FF Coolant Temp 154.40 °F
FF Demand 8.10 %
FF Engine Speed 1602 RPM
FF Engine State Running
FF FPC Total 13.9 Counts
FF Frequency Count 2
FF Fuel Level 0.00 %
FF Gear Position Neutral
FF Lake Temp 429.80 °F
FF Engine Load 3.03 %
FF Main Pwr Relay Requests YES
FF Manifold Air Pressure 6.04 PSI
FF Oil Level 0.00 %
FF Port Tab Pos 0.00 %
FF Available Power 100 %
FF Run Time 637.43 hrs
FF Starboard Tab Pos 0.00 %
FF TPS Percent 8.10 %
FF Trim Position 0.00 %

9 ECT OVRHT
-----------------------------------------
FF Baro Pressure 14.71 PSI
FF Battery Volts 13.06 VDC
FF Sea Pump Pressure 0.52 PSI
FF Boat Speed 0.00 #
FF Manifold Air Temp 102.20 °F
FF Coolant Temp 194.00 °F
FF Demand 6.58 %
FF Engine Speed 1136 RPM
FF Engine State Running
FF FPC Total 20.4 Counts
FF Frequency Count 1
FF Fuel Level 0.00 %
FF Gear Position In Gear
FF Lake Temp 429.80 °F
FF Engine Load 8.98 %
FF Main Pwr Relay Requests YES
FF Manifold Air Pressure 7.88 PSI
FF Oil Level 0.00 %
FF Port Tab Pos 0.00 %
FF Available Power 23 %
FF Run Time 719.73 hrs
FF Starboard Tab Pos 0.00 %
FF TPS Percent 6.58 %
FF Trim Position 0.00 %

Fault Log Data
Fault Descriptions Seconds

Battery Range High: 0
Battery Range Low: 0
Block Pressure is Low: 0
Compressor Temp Overheat: 0
ETC Motor Open: 0
ETC Motor Short: 0
Fuel Pressure Sensor Input High: 0
Fuel Pressure Sensor Input Low: 0
Guardian Strategy: 0
Knock Sensor 1: 0
Knock Sensor 2: 0
Low Oil Pressure Strategy: 0
Low Oil Remote Strategy: 0
Low Oil Reserve Strategy: 0
MAP Sensor 1 Input High: 0
MAP Sensor 1 Input Low: 0
MAP Sensor 1 Idle Rational: 0
Oil Pump Output: 0
Overspeed: 0
Port Clnt Overheat: 0
Starboard Clnt Overheat: 40
Warning Horn Output: 0
Water In Fuel: 0

Engine Run Time History:

Total engine run time: 806.73 Hours
0 - 749 RPM: 338.47 Hours
750 - 1499 RPM: 289.37 Hours
1500 - 2999 RPM: 65.13 Hours
3000 - 3499 RPM: 101.27 Hours
3500 - 3999 RPM: 11.80 Hours
4000 - 4499 RPM: 0.70 Hours
Over 4499 RPM: 0.00 Hours

If the drive lube reservoir is empty, then the drive could be toast. Its not a question of if there is leak. There definitely is.
Drain the lube and see what it looks like.

Also looks like you overheated the engine and have little to no water pressure