Pinpoint Test I: The Tachometer Is Inoperative

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

I1 CARRY OUT THE TACHOMETER ACTIVE COMMAND USING THE SCAN TOOL

NOTE: On hybrid vehicles, verify that the IPC display mode is set to the enlighten mode setting before beginning diagnostics.

Ignition ON.
Enter the following diagnostic mode on the scan tool: IPC DataLogger.
Start the engine.

NOTE: On hybrid, make sure to set the scan tool to 0 rpm before beginning this test.

Select the IPC tachometer (TACH_IND) active command. Command the tachometer according to the following table while monitoring the tachometer.

TECHOMETER REFERENCE TABLE

Tachometer Command	Gauge Position
0%	0 rpm
50%	3,500 rpm (non-hybrid) 3,000 rpm (hybrid)
100%	7,000 rpm (non-hybrid) 6,000 rpm (hybrid)
0%	0 rpm

Does the tachometer start at 0 rpm, move to 3,500 rpm, 7,000 rpm and then return to 0 rpm?

Yes : GO to I2.
No : INSTALL a new IPC . REFER to INSTRUMENT PANEL CLUSTER (IPC) in this service information. TEST the system for normal operation.

I2 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST
- Check for recorded PCM DTCs from the Key ON Engine OFF (KOEO) self-test.
- Are any DTCs recorded?
- Yes : DIAGNOSE all PCM DTCs first. REFER to the INTRODUCTION -- GASOLINE MODELS and INTRODUCTION -- FUSION HYBRID, MILAN HYBRID & MKZ HYBRID article.
- No : GO to I3.
I3 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST
- Check for recorded DTCs from the IPC self-test.
- Are any DTCs recorded?
- Yes : For DTC U0100:00, GO to PINPOINT TEST BF .
  For DTC U0401:68, RETRIEVE and REPAIR all non-network DTCs in the PCM and other modules on the network. REFER to INTRODUCTION -- GASOLINE MODELS and INTRODUCTION -- FUSION HYBRID, MILAN HYBRID & MKZ HYBRID article and MULTIFUNCTION ELECTRONIC MODULES -- FUSION, MILAN & MKZ article for a list of all DTCs.
  
  For all other DTCs, REFER to DTC TABLES in this service information.
- No : INSTALL a new PCM. Refer to the appropriate Electronic Engine Control article for the procedure. TEST the system for normal operation.