× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P121C Diagnostic Trouble Code Discussion for January 2013

Torque Request Signal Denied

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P121C
Help Request Posted
2010 Volkswagen Routan SEL 4.0L Cuts out, Stall, MIL Lamp on VIN: 2V4RW5DX7A
P121C: Torque Request Signal Denied. ... that have driveability problem, the engine cannot raise above 3500 rpm and the transmission cannot downshift only upshift or to downshift manual. I have P0016 in PCM and P121C in ABS. If i try to downshift manualy the en...
January 24, 2013