Galant L4-2.4L (4G69) (2004)
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MB991911: 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: 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.
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 Diagnostic Trouble Code Chart. See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions
No: Go to Step 3.
STEP 3. Using scan tool MB991958, read the MFI system 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.