2003 XC90 only drives in manual and reverse, but not in drive

svdbor · Post by **svdbor** » 04 Mar 2023, 16:05

Today the car no longer gears in drive, but it is still working in manual mode. The reverse is fine as well. The "D" shows on the dashboard, so looks like the shifter is providing the correct position, but it acts like being in neutral, and the car will not move.
The following 4 error codes are stored, but these are probably unrelated:
CCM-0021 Air quality sensor / blower fan power unit
UEM-0004 Siren
UEM-0005 Sun roof
CEM-1C01 L signal
Has anybody seen this before? Or any suggestions on what to look far?

Post by **xHeart** » 08 Mar 2023, 07:57

svdbor wrote: 04 Mar 2023, 16:05 Today the car no longer gears in drive, but it is still working in manual mode. The reverse is fine as well. The "D" shows on the dashboard, so looks like the shifter is providing the correct position, but it acts like being in neutral, and the car will not move.
The following 4 error codes are stored, but these are probably unrelated:
CCM-0021 Air quality sensor / blower fan power unit
UEM-0004 Siren
UEM-0005 Sun roof
CEM-1C01 L signal
Has anybody seen this before? Or any suggestions on what to look far?

The rear could be painted as front for it being used in a circus; Lol!

CCM-0021: you may want to remove and service the Climate Control unit.
UEMs: sensor frequency related - VIDA/DiCE works best if battery is fully charged and in a charge-maintainer mode
CEM-1C01: perhaps a failed alternator decoupler pulley - stuck pulley and/or regulator