Pinpoint Test B: The Temperature Gauge Is Inoperative (Except Hybrid)
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- B1 RETRIEVE THE RECORDED DTCs FROM BOTH CONTINUOUS AND ON-DEMAND PCM SELF-TESTS
- Check the recorded PCM DTCs from the continuous and on-demand self-tests.
- Are any PCM DTCs recorded?
- YES : REFER to the Introduction - Gasoline Engines article.
- NO : Go to B2.
- B2 CARRY OUT THE TEMPERATURE GAUGE ACTIVE COMMAND USING THE SCAN TOOL
- Key in ON position.
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster (IC) DataLogger
- Select the temperature gauge (ENGCOOLNT) active command. Command the temperature gauge to 50°C (122°F), 100°C (212°F) and 125°C (257°F) while monitoring the gauge.
- Does the temperature gauge start at cold (C), move to full hot (H) and return to cold (C)?
- B3 RETRIEVE THE RECORDED DTCs FROM BOTH THE CONTINUOUS AND ON-DEMAND INSTRUMENT CLUSTER (IC) SELF-TESTS
- Check for recorded instrument cluster (IC) DTCs from the continuous and on-demand self-tests.
- Is continuous DTC U0100 recorded?
- YES : Go to Pinpoint Test AI .
- NO : Go to B4.
- B4 CHECK FOR CORRECT INSTRUMENT CLUSTER (IC) OPERATION
- Disconnect the instrument cluster (IC) connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the instrument cluster (IC) connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- YES : INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
- NO : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.