What does code po1681 mean?
Jun 20, 2018 at 5:51 AM
Check engine code po1681
2004 CHRYSLER 300M
FARR2007
- MEMBER
- 244 POSTS
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Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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Good morning.
It is a communication issue with the fuel gauge.
Roy
Symptom:
P1681-No fuel level BUS message.
When monitored:
Ignition on.
Set condition:
No fuel level BUS messages received by the PCM for 20 seconds.
Possible causes:
- DTC reset
- Communicate with BCM
- Fuel level bus message
- PCI bus circuit open from PCM to BCM
- BCM
It is a communication issue with the fuel gauge.
Roy
Symptom:
P1681-No fuel level BUS message.
When monitored:
Ignition on.
Set condition:
No fuel level BUS messages received by the PCM for 20 seconds.
Possible causes:
- DTC reset
- Communicate with BCM
- Fuel level bus message
- PCI bus circuit open from PCM to BCM
- BCM
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Jun 21, 2018 at 4:49 AM
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