Pinpoint Test I: The Tachometer Is Inoperative
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 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.
- Select the IPC
tachometer (TACH_IND) active command. Command the tachometer according to the following table while monitoring the tachometer.NOTE: On hybrid, make sure to set the scan tool to 0 rpm before beginning this test.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) . 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 -- HYBRID .
- 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 the INTRODUCTION - GASOLINE MODELS and INTRODUCTION -- HYBRID and MULTIFUNCTION ELECTRONIC MODULES for a list of all DTCs.
For all other DTCs, REFER to DTC TABLES .
- No : INSTALL a new PCM. REFER to Refer to the appropriate Electronic Engine Controls article for the procedure. TEST the system for normal operation.