Network
generic / SAE
U0491
Invalid Data Received From Digital Disc Player/Changer Module D
A receiving module detected implausible data from digital disc player/changer module D (CD/DVD/BD). Track, slot or fault status values fail plausibility checks and are rejected.
SystemNetwork
Typegeneric / SAE
GroupU0
Range / number4 / 91
Possible causes
- Module internal fault or sensor input drift high
- Software version mismatch after replacement medium
- Gateway module routing CAN messages incorrectly low
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 80–600 €
- Estimated time: 0.5–2 h
- Component: disc changer module d
- drive cycle required
Sources
References
sae:J2012