01315high severityNetwork
Transmission Control Module (TCM) - No Communication
on 2014 Volkswagen CC 2.0L Turbo I4 · FWD
What this code means
No data is being received from the transmission control module. Similar to OBD U0101 (Lost Communication with TCM).
Symptoms
- Transmission in limp mode
- Harsh or no shifting
- Transmission warning light
Common causes
- TCM power or ground fault
- CAN bus wiring to TCM damaged
- Faulty TCM
- Corroded connector
Diagnostic steps
- Check TCM power and ground
- Verify CAN wiring to TCM
- Scan for related bus faults
- Replace TCM if unresponsive
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Network codes on this vehicle
00003
Control Module - Defective
01304
Radio - No Communication
01312
Powertrain Data Bus - Defective
01314
Engine Control Module (ECM) - no communications
01316
ABS Control Module - No Communication
01317
Instrument Cluster Control Module (J285) - No Communication
01318
Immobilizer Control Module - No Communication
01321
Airbag Control Module - No Communication
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance