Endeavor V6-3.8L SOHC (2004)
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MB991910: MUT-III Main Harness A (Vehicles with CAN communication system)
STEP 1. Check the battery voltage.
Measure the battery voltage during cranking.
Q: Is the voltage 8 volts or more?
YES : Go to Step 2.
NO : Check the condition of the battery. Refer to Battery Check. See: Starting and Charging/Battery/Testing and Inspection/Battery Check
STEP 2. Using scan tool MB991958, read the diagnostic trouble code.
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch "ON" position.
3. Read the diagnosis code.
Q: Have any DTCs set?
YES : Refer to MFI Diagnosis - Diagnostic Trouble Code Chart.
NO : Go to Step 3.
STEP 3. Using scan tool MB991958, read the diagnostic trouble code.
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.
