Pinpoint Test G : The Analog Tachometer Is Inoperative
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
- G1 PERFORM THE PCM KOEO SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the PCM KOEO self-test.
Are any DTCs recorded?
Yes REFER to Electronic Engine Controls . No GO to G2. - G2 PERFORM THE IPC SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any DTCs recorded?
Yes REFER to DTC Chart: IPC . No GO to G3. - G3 PERFORM THE TACHOMETER ACTIVE COMMAND USING THE SCAN TOOL
- Using a diagnostic scan tool, view the IPC PIDs.
- Select the IPC tachometer (TACH_IND) PID. Command the tachometer on and off while monitoring the tachometer.
Does the tachometer begin at 0 Revolutions Per Minute (RPM), increase to 7, 000 Revolutions Per Minute (RPM) then return to 0 Revolutions Per Minute (RPM)?
Yes INSTALL a new PCM. REFER to Electronic Engine Controls . No