The dreaded “no start” condition can be frustrating for any car owner. Recently, I encountered this issue on a VW and used VCDS (Vag-Com Diagnostic System) to diagnose the problem. A recurring fault code, 01317 – Control Module in Instrument Cluster (J285) 004 – No Signal/Communication, pointed towards a communication breakdown with the instrument cluster. This article details the diagnostic process and potential solutions for this common VW fault code.
Understanding VCDS Fault Code 01317
The 01317 fault code in VCDS specifically indicates a lack of communication between various control modules and the instrument cluster (J285). This module is the central hub for displaying vital vehicle information and interacting with other systems. A communication failure can lead to a cascade of issues, including a no-start condition, malfunctioning gauges, and warning lights. In my case, the car would start momentarily and then die, accompanied by intermittent immobilizer and airbag warning lights.
Diagnosing the 01317 Fault Code
Using VCDS, I performed three separate scans:
-
Cluster OFF/No Start: This initial scan revealed the 01317 fault code in multiple modules, including the ABS brakes, Auto HVAC, Central Electrics, and CAN Gateway. Significantly, the instrument cluster module (Address 17) was unreachable. This scan also showed other fault codes related to immobilizer, low idle, and cooling system performance. The widespread presence of the 01317 error suggested a central communication issue rather than individual module failures.
01317 - Control Module in Instrument Cluster (J285) 004 - No Signal/Communication -
Cluster ON (After No Start): After managing to restart the car, the second scan showed the instrument cluster was sporadically communicating. The 01317 error persisted in several modules but was now intermittent. Interestingly, the immobilizer (Address 25) was also now sporadically communicating. This suggested a potential wiring or connection problem to the instrument cluster.
01317 - Control Module in Instrument Cluster (J285) 004 - No Signal/Communication - Intermittent -
Post DTC Clear: After clearing all diagnostic trouble codes (DTCs), a third scan revealed most errors were cleared, except for persistent issues with the engine (P0506, P2181, U0155, P0513) and the satellite radio. Importantly, the 01317 fault code was no longer present. However, the recurring nature of the initial problem indicated the underlying issue was likely not resolved.
Potential Causes and Solutions for 01317
Several factors can contribute to the 01317 fault code. Based on my experience and research, the most common causes include:
- Faulty Instrument Cluster: A malfunctioning instrument cluster itself can disrupt communication.
- Wiring or Connection Issues: Damaged wiring, loose connectors, or corroded terminals in the CAN bus system can interrupt communication between modules.
- Low Battery Voltage: Insufficient voltage can prevent modules from communicating effectively. Replacing the battery and checking the alternator’s output is crucial. In this case, a new battery was already installed.
- Faulty Relay 460: This relay powers the instrument cluster and other components. Replacing it is a common fix for similar issues, as was done here using VW part number 1K0951253A.
Conclusion
While clearing the DTCs temporarily resolved the immediate symptoms, the underlying cause of the intermittent 01317 fault code remains to be determined. Further investigation into the wiring harness and connections related to the instrument cluster is recommended. Thoroughly inspecting the CAN bus system for damage or corrosion is essential. If no obvious physical issues are found, a faulty instrument cluster might be the culprit. Ultimately, resolving the 01317 error requires a systematic approach to identify and address the root cause of the communication breakdown.
