Check engine code po1681

Tiny
FARR2007
  • MEMBER
  • 2004 CHRYSLER 300M
  • 3.5L
  • 3 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
What does code po1681 mean?
Wednesday, June 20th, 2018 AT 5:51 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
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
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Thursday, June 21st, 2018 AT 4:49 AM

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