Outlander 4WD L4-2.4L (4B12) (2008)
Hands Free Cellular Phone System Circuit (Part 2)
FUNCTION
During the conversation with the hands-free system, the signal of speaker's voice is transmitted from the microphone unit to the hands-free module. Then
the signal is transmitted from the hands-free module to the cellular phone. The voice of other party is transmitted from the cellular phone to the
hands-free module. Then, the voice is transmitted from the hands-free module to the radio and CD changer <vehicles without MMCS> or audio visual
navigation unit <vehicles with MMCS>, and output from the speaker.
TROUBLE JUDGMENT CONDITIONS
If the hands-free system cannot be used normally, the hands-free module, microphone unit, steering wheel voice control switch, or radio and CD changer
<vehicles without MMCS> or audio visual navigation unit <vehicles with MMCS> may be defective.
TROUBLESHOOTING HINTS
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Malfunction of the hands-free module
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Malfunction of the microphone unit
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Malfunction of the steering wheel voice control switch
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Malfunction of the radio and CD changer <vehicles without MMCS> or audio visual navigation unit <vehicles with MMCS>
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Damaged harness wires and connectors
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.