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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1338 (Engine Controls - Symptom Charts - (Hybrid)) >> Step 3: No Diagnostic Trouble Code (DTC) Present Symptom Charts >> Chart 7

Chart 7

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Since driving styles can have a significant influence on fuel economy, verify the concern before starting an in-depth diagnosis. Also, the following external factors could contribute to poor fuel economy conditions:
  • Stop/go driving
  • Improper tire pressure/size
  • Vehicle loads (such as trailer towing)
  • Extended winter warm-up conditions
  • High speed driving
  • Regenerative braking disabled
  • High traction battery temperatures
  • Improper axle ratio
  • Road/weather conditions
  • Aftermarket add-ons
  • Short run operations
  • Customer expectations
SYSTEM/COMPONENT REFERENCE (Pinpoint Test Unless Noted)
Transaxle Fluid Level Visual. REFER to AUTOMATIC TRANSAXLE/TRANSMISSION - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT) .
Check the following PIDs:
  • LONGFT1 (value between -20 and +20)
  • VPWR (value between 10.5 and 17.0 volts, and within 0.5 volt of battery voltage)
 LONGFT1 value low (-): 
Continue diagnosis. Concentrate checks in areas that cause the engine to run rich.
LONGFT1 value high (+): 
Continue diagnosis. Concentrate checks in areas that cause the engine to run lean.
VPWR not between 10.5 and 17.0 volts: 
REFER to CHARGING SYSTEM - GENERAL INFORMATION .
VPWR between 10.5 and 17.0 volts, but not within 0.5 of battery voltage: 
CHECK the B+ supply to the power relay. CHECK the VPWR circuit between the PCM and the power relay. CHECK the PWR GND circuits.
Verify engine operates at normal temperature Visual. REFER to ENGINE COOLING - HYBRID to diagnose any cooling system concerns that are present.
Secondary Ignition System GO to Pinpoint Test JB .
Fuel System GO to Pinpoint Test HC .
Exhaust System GO to Pinpoint Test HF .
Automatic Transaxle REFER to AUTOMATIC TRANSAXLE/TRANSMISSION - ELECTRONICALLY CONTROLLED CONTINUOUSLY VARIABLE TRANSMISSION (ECVT) .
PCV System GO to Pinpoint Test HG .
Additional Checks:
 REFER to the applicable service information article .
Additional Testing GO to Pinpoint Test Z .
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