Lancer Sportback L4-2.4L (4B12) (2010)
![background image](/mitsubishi/lancer_sportback/l4-2.4l_(4b12)/Page-1260004.png)
TROUBLESHOOTING HINTS
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Hands free module may be defective
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Microphone unit may be defective
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Steering wheel voice control switch may be defective
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Radio and CD player [vehicles without MMCS] or multivision display [vehicles with MMCS] may be defective
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The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
DIAGNOSIS
Required Special Tools:
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MB991223: Harness Set
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MB992006: Extra Fine Probe
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MB991958: Scan Tool (M.U.T.-III Sub Assembly)
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MB991824: Vehicles Communication Interface (V.C.I.)
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MB991827: M.U.T.-III USB Cable
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MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
STEP 1. Check the cellular phone.
Check that the cellular phone can be used normally as a unit.
Q: Is it possible to use the cellular phone normally?
YES : Go to Step 2.
NO : Repair or replace the cellular phone.
STEP 2. Temporarily replace the cellular phone, and check the trouble symptom.
Temporarily register a separate Bluetooth« supported cellular phone, and check that the hands free cellular phone system operates normally.
Q: Is the normal conversation possible with the hands-free system?
YES : Ask the customer to have the cellular phone repaired or replaced. Then, delete the temporarily registered cellular phone. Once the customer
prepares the normally working cellular phone, register the cellular phone to the hands free module.
NO : Go to Step 3.
STEP 3. Using scan tool MB991958, diagnose the CAN bus line.
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.