Pinpoint Test D: The Temperature Gauge 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.

D1 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 INTRODUCTION - GASOLINE MODELS and INTRODUCTION -- HYBRID .
- No : GO to D2.

D2 CARRY OUT THE TEMPERATURE GAUGE ACTIVE COMMAND USING THE SCAN TOOL

Ignition ON.
Enter the following diagnostic mode on the scan tool: IPC DataLogger.
NOTE: The coolant temperature should range between 0-59°C (32-138°F) with the gauge in the cold (C) range, between 60-120°C (140-248°F) with the gauge in the normal or mid-range and above 123°C (253°F) with the gauge in the hot (H) range.

Select the IPC temperature gauge (ENGCOOLNT) active command. Command the temperature gauge according to the following table:

TEMPERATURE RESISTANCE REFERENCE TABLE

Temperature Command	Gauge Position
0%	Full cold (C)
50%	Just under the center of the gauge (mid-range) (non-hybrid) Just above the center of the gauge (mid-range) (hybrid)
100%	Full hot (H)

Does the temperature gauge start at cold (C), move to the mid-range and end at full hot (H)?

Yes : GO to D3.
No : INSTALL a new IPC . REFER to INSTRUMENT PANEL CLUSTER (IPC) . TEST the system for normal operation.

D3 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 the appropriate Electronic Engine Control article for the procedure. TEST the system for normal operation.