Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMITSUBISHI2004DIAMANTE V6-3.5L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESDATA LIST REFERENCE TABLE & NORMAL SCAN DATA VALUES
2004 Mitsubishi Diamante V6-3.5L SOHC
Data List Reference Table & Normal Scan Data Values
2004 Mitsubishi Diamante V6-3.5L SOHCSECTION Data List Reference Table & Normal Scan Data Values
SERVICE DATA REFERENCE TABLE


The scan tool (MUT-II) has two operation modes: the general scan mode and the scan tool (MUT-II) mode.
The service data which can be read in either mode is shown in the table. Item No. Inspection item General
CAUTION: When shifting the select lever to D range, the brakes should be applied so that the vehicle does not move forward.
CAUTION: Driving tests always need another personnel.
NOTE: *1: In a new vehicle [driven approximately 500 km (300 mile) or less], the volume air flow sensor output frequency is sometimes 10% higher than the standard frequency.
NOTE: *2: After performing a warm up idle from an initial engine temperature of -20 °C (-4 °F), if the idle speed is lower than the standard value then it is assumed that the air volume limiter in the throttle body is defective (even if the IAC motor is fully open).
NOTE: *3: The injector drive time represents the time when the cranking speed is at 250 r/min or below when the power supply voltage is 11 V.
NOTE: *4: In a new vehicle [driven approximately 500 km (300 mile) or less], the injector drive time is sometimes 10% longer than the standard time.
NOTE: *5: The closed throttle position switch normally turns off when the voltage of the throttle position sensor is 50 - 100 mV higher than the voltage at the idle position. If the closed throttle position switch turns back on after the throttle position sensor voltage has risen by 100 mV and the throttle valve has opened, the closed throttle position switch and the throttle position sensor need to be adjusted.
NOTE: *6: In a new vehicle [driven approximately 500 km (300 mile) or less], the step of the stepper motor is sometimes 3 steps greater than the standard value.
NOTE: *2: After performing a warm up idle from an initial engine temperature of -20 °C (-4 °F), if the idle speed is lower than the standard value then it is assumed that the air volume limiter in the throttle body is defective (even if the IAC motor is fully open).
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The scan tool (MUT-II) has two operation modes: the general scan mode and the scan tool (MUT-II) mode.
The service data which can be read in either mode is shown in the table. Item No. Inspection item General
CAUTION: When shifting the select lever to D range, the brakes should be applied so that the vehicle does not move forward.
CAUTION: Driving tests always need another personnel.
NOTE: *1: In a new vehicle [driven approximately 500 km (300 mile) or less], the volume air flow sensor output frequency is sometimes 10% higher than the standard frequency.
NOTE: *2: After performing a warm up idle from an initial engine temperature of -20 °C (-4 °F), if the idle speed is lower than the standard value then it is assumed that the air volume limiter in the throttle body is defective (even if the IAC motor is fully open).
NOTE: *3: The injector drive time represents the time when the cranking speed is at 250 r/min or below when the power supply voltage is 11 V.
NOTE: *4: In a new vehicle [driven approximately 500 km (300 mile) or less], the injector drive time is sometimes 10% longer than the standard time.
NOTE: *5: The closed throttle position switch normally turns off when the voltage of the throttle position sensor is 50 - 100 mV higher than the voltage at the idle position. If the closed throttle position switch turns back on after the throttle position sensor voltage has risen by 100 mV and the throttle valve has opened, the closed throttle position switch and the throttle position sensor need to be adjusted.
NOTE: *6: In a new vehicle [driven approximately 500 km (300 mile) or less], the step of the stepper motor is sometimes 3 steps greater than the standard value.
NOTE: *2: After performing a warm up idle from an initial engine temperature of -20 °C (-4 °F), if the idle speed is lower than the standard value then it is assumed that the air volume limiter in the throttle body is defective (even if the IAC motor is fully open).
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.