Pinpoint Test J : The Tachometer Is Inoperative: Notes
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation and Fault Conditions
See Tachometer. Refer to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the IPC does not receive the engine rpm data from the PCM for 5 seconds or longer, the IPC defaults the tachometer to 0 rpm.
Possible Sources
- Communication concern
- PCM concern
- GWM
- IPC