mitsubishi Workshop Repair Guides

Mitsubishi Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 2437 > < Component Tests and General Diagnostics|Page 2435
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HARNESS INSPECTION

STEP 1. Check for continuity between the volume air flow sensor and the MFI relay.
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MFI relay connector: Disconnected

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Volume air flow sensor connector: Disconnected

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Touch the ohmmeter probes to both ends of the harness.
OK: GO TO STEP 2
NG: Repair the harness. (A4 - B1)

STEP 2. Check for continuity in the ground circuit.
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Volume air flow sensor connector: Disconnected
OK: GO TO STEP 3
NG: Repair the harness. (A5 - 49)

STEP 3. Check for an open or short-circuit between the volume air flow sensor and the engine control module.
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Volume air flow sensor connector: Disconnected

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Engine control module connector: Disconnected
OK: GO TO STEP 4
NG: Repair the harness. (A3 - 61, A7 - 19)

STEP 4. Measure the applied voltage
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Volume air flow sensor connector: Disconnected

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Engine control module connector: Connected

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Ignition switch: ON
Voltage (V): 4.8 - 5.2
OK: STOP
NG: Replace the engine control module.

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