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REM-8F10 Error

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

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Year and Model: XC 70 AWD 2.5 - 2006
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REM-8F10 Error

Post by Metallo » Sun Jan 06, 2019 8:23 am

Hi all,

My car is an XC70 AWD 2005 -> without 4C

I get the following two errors in VIDA:

REM-8F10 Position xenon lamp Signal too high
REM-8F13 Position xenon lam Calibration fault

First, I adjusted the two plastic headlamp regulators to a 'middle' position and then I did the Calibration process through the REM module.
The calibration turned green but it did not resolve the problem as the above errors are still there

What are the next steps I should take?
I read the fuses should be checked, which fuse box are they located? Is it the one on the back in the trunk?

Any help is appreciated.

Thank you!
Polar 940 Turbo SW - 1997
XC 70 AWD 2.5 - 2005
XC 70 AWD 2.5 - 2006

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Re: REM-8F10 Error

Post by jimmy57 » Sun Jan 06, 2019 10:41 am

Has the car been turned off and left lone for a few hours and rechecked? some of the calibrations will continue to show the fault until the car goes into off line mode (goes to sleep). on the next key on cycle the fault codes will be gone.

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Re: REM-8F10 Error

Post by RickHaleParker » Sun Jan 06, 2019 12:15 pm

Check for shorts in the wiring.

REM-8F10 Position sensor xenon lamp. Signal too high

Diagnostic trouble code (DTC) information REM-8F10

M3501797 Condition
The rear electronic module (REM) checks the signal from the rear position sensor.
The diagnostic trouble code (DTC) is stored if the rear electronic module (REM) registers a faulty signal from the position sensor.
The diagnostic trouble code (DTC) can be diagnosed at key position II.

Substitute value
The shortest headlamp range will be used.

Possible source
  • Short-circuit to supply voltage in the signal cable
    Defective position sensor.
Fault symptoms
Automatic headlamp range control is not functioning.
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

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