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Help！2018 YAMAHA 242 Communication Error - Keypad- Check keypad CAN.
- Thread starter tenl
- Start date
Kevin-yyz
Jet Boat Addict
- Messages
- 60
- Reaction score
- 50
- Points
- 87
- Location
- 44.384469, -79.690059
- Boat Make
- Moomba
- Year
- 2021
- Boat Model
- Other
- Boat Length
- 25
I had this today. Turned everything off for a minute then started back up without issue.
cwood
Jet Boat Addict
- Messages
- 45
- Reaction score
- 24
- Points
- 87
- Location
- Aiken, SC
- Boat Make
- Yamaha
- Year
- 2018
- Boat Model
- 242 Limited S E-Series
- Boat Length
- 24
I had that error several times last summer. Never figured exact cause, but I think it may have been related to low battery voltage. After I put the batteries on trickle charge a week, the message hasn’t appeared again.
- Messages
- 18,624
- Reaction score
- 21,004
- Points
- 1,102
- Location
- Raleigh, NC 27614
- Boat Make
- Yamaha
- Year
- 2016
- Boat Model
- 242X E-Series
- Boat Length
- 24
According to that image, your house battery looks to be at 11 volts....which is dead. Likely your issue.
Weeb
Jetboaters Captain
- Messages
- 1,029
- Reaction score
- 534
- Points
- 207
- Location
- Denver NC 28037
- Boat Make
- Yamaha
- Year
- 2017
- Boat Model
- AR
- Boat Length
- 24
Good catch I didn’t see that.
tenl
Jet Boat Lover
- Messages
- 12
- Reaction score
- 1
- Points
- 70
- Boat Make
- Yamaha
- Year
- 2018
- Boat Model
- 242 Limited S E-Series
- Boat Length
- 24
Charge two batteries today. I will try it tomorrow morning. thank you
tenl
Jet Boat Lover
- Messages
- 12
- Reaction score
- 1
- Points
- 70
- Boat Make
- Yamaha
- Year
- 2018
- Boat Model
- 242 Limited S E-Series
- Boat Length
- 24
the battery is 11.9V now i charge two batteries today. I will try it tomorrow morning and show the picture . thank you
- Messages
- 18,624
- Reaction score
- 21,004
- Points
- 1,102
- Location
- Raleigh, NC 27614
- Boat Make
- Yamaha
- Year
- 2016
- Boat Model
- 242X E-Series
- Boat Length
- 24
FYI, not sure you know this, but 11.9 is "discharged"....so fingers crossed this is all you need to do! 
| State of Charge | Specific Gravity | Voltage | |
|---|---|---|---|
| 12V | 6V | ||
| 100% | 1.265 | 12.7 | 6.3 |
| 75% | 1.225 | 12.4 | 6.2 |
| 50% | 1.190 | 12.2 | 6.1 |
| 25% | 1.155 | 12.0 | 6.0 |
| Discharged | 1.120 | 11.9 | 6.0 |
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