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Check that the cellular phone can be used normally as a unit.
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Q.
Is the check result normally?
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Repair or replace the cellular phone.
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Temporarily register a separate Bluetooth™-supported cellular phone (refer to ), and check that the hands free cellular phone system operates normally.
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Q.
Is the check result normally?
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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-ECU(refer to ).
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Use the M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
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Q.
Is the check result normal?
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Repair the defective connector.
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(1)Disconnect the connector, and measure at the wiring harness side.
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(2)Check the continuity between C-122 hands-free-ECU connector terminal No.15 and body earth. OK: Continuity exists (2 Ω or less)
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Q.
Is the check result normal?
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Q.
Is the check result normal?
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The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
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Repair the wiring harness.
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(1)Disconnect the connector, and measure at the wiring harness side.
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(2)Measure the voltage between terminal 13 and body earth. OK: System voltage
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Q.
Is the check result normal?
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Q.
Is the check result normal?
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The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use Troubleshooting/inspection Service Points, How to Cope with Intermittent Malfunction ).
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Repair the wiring harness.
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Q.
Is the check result normal?
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Repair the defective connector.
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(1)Disconnect C-122 hands free-ECU connector and D-01 microphone unit connector, and check the wiring harness.
note |
Prior to the wiring harness inspection, check C-40 intermediate connector, and repair if necessary.
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(2)Check the wiring harness between C-122 hands-free-ECU connector terminal No.1 and D-01 microphone unit connector terminal No.22
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(3)Check the wiring harness between C-122 hands-free-ECU connector terminal No.1 and D-01 microphone unit connector terminal No.23
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(4)Check the wiring harness between C-122 hands-free-ECU connector terminal No.2 and D-01 microphone unit connector terminal No.24
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Q.
Is the check result normal?
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Repair the wiring harness.
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Q.
Is the check result normal?
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Repair the defective connector.
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(1)Disconnect C-122 hands free-ECU connector and C-16 audio unit connector <vehicles without MMCS> or C-08 audio visual navigation unit connector <vehicles with MMCS>, and check the wiring harness.
note |
Prior to the wiring harness inspection, check C-17 intermediate connector, and repair if necessary. <vehicles with MMCS>
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(2)Check the wiring harness between C-122 hands free-ECU connector terminal No.9 and C-16audio unit connector terminal No.3 <vehicles without MMCS>
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(3)Check the wiring harness between C-122 hands free-ECU connector terminal No.19 and C-16 audio unit connector terminal No.2 <vehicles without MMCS>
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(4)Check the wiring harness between C-122 hands free-ECU connector terminal No.21 and C-16 audio unit connector terminal No.2 <vehicles without MMCS>
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(5)Check the wiring harness between C-122 hands free-ECU connector terminal No.9 and C-08 audio visual navigation unit connector terminal No.45 <vehicles without MMCS>
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(6)Check the wiring harness between C-122 hands free-ECU connector terminal No.19 and C-08 audio visual navigation unit connector terminal No.46 <vehicles without MMCS>
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(7)Check the wiring harness between C-122 hands free-ECU connector terminal No.21 and C-08 audio visual navigation unit connector terminal No.46 <vehicles without MMCS>
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Q.
Is the check result normal?
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Repair the wiring harness.
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Check that the normal conversation is possible with the hands-free system.
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Q.
Is the check result normal?
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Replace the microphone unit.
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Check that the normal conversation is possible with the hands free system.
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Q.
Is the check result normal?
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Replace the hands free-ECU.
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Replace the audio unit <vehicles without MMCS> or audio visual navigation unit <vehicles with MMCS>.
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