Strange CEL p 1671

[j.fro]

I recently got a CEL and the code came back as 1671. Anybody ever dealt with this one? I looked it up and came up with two possibilities: ECU fault or engine compartment fan. There has been no change in the way the car runs.

[The Radium King]

can you see if you can activate the engine compartment fan with your durametric? good way to test to see if it is working ..

[Paul]

From the 7.8 DME Manual:
P1671
DME relay/control module faulty (computer monitoring: reset) – signal implausible


Possible fault cause
◆ Undervoltage
◆ DME relay faulty
◆ DME control module faulty
This fault may be entered if the control module has been operated with undervoltage.
Affected terminals
I/1 and I/8
Diagnosis/troubleshooting
Note!
• If no fault is present, erase the fault memory.
1) Check voltage supply, terminal 15
◆ Measure voltage between pin I/1 and ground.
> 11 V
2) Check DME relay ◆ Switch on the ignition
◆ Measure voltage between pin I/18 and ground
Battery positive voltage
Check triggering of DME relay
Replace DME relay
3) Replace DME control module.
4) Perform adaptation. ◆ Switch on the ignition
◆ Wait one minute
◆ Do not press the accelerator
◆ Switch off the ignition for at least 10 seconds
◆ Read out the fault memory
-> End -> End

[Jarzembek]

Hi, a have this same problem with fault 1671 and my car is not interested to start Do you solved your problem?