Pinpoint Test C : Module Internal Fault
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Normal Operation and Fault Conditions
The TCCM and ATCM monitor the internal circuitry and memory for errors. If a fault is detected multiple times, a DTC is set.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition ATCM U3000:49 Control Module: Internal Electronic Failure This DTC sets if voltage levels vary across different internal circuit. INSTALL a new ATCM. REFER to: Mode Select Switch (MSS) - Raptor . TCCM P06B8:00 Internal Control Module Non-Volatile Random Access Memory (NVRAM) Error: No Sub Type Information This DTC sets if all NVRAM blocks have an error. The DTC is permanent. INSTALL a new TCCM. REFER to: Transfer Case Control Module (TCCM) . TCCM U3000:04 Control Module: System Internal Failures This DTC sets if an internal error is detected while the clutch is on. INSTALL a new TCCM. REFER to: Transfer Case Control Module (TCCM) . TCCM U3000:46 Control Module: Calibration/Parameter Memory Failure This DTC sets if the two-point motor or clutch calibration is invalid. INSTALL a new TCCM. REFER to: Transfer Case Control Module (TCCM) . TCCM U3000:49 Control Module: Internal Electronic Failure This DTC sets if voltage levels vary across different internal circuit. INSTALL a new TCCM. REFER to: Transfer Case Control Module (TCCM) . Possible Sources
- TCCM
Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods