Inspection Procedure 3: The screen is not normal in the navigation mode. (The own vehicle mark is dislocated.)
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Before replacing the multivision display, ensure that the power supply circuit, the earth circuit, and the communication circuit are normal. (Check that the voltage is 10 V or more.)
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COMMENTS ON TROUBLE SYMPTOM
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There is a failure in the wiring harness between the combination meter and the multivision display, the GPS antenna, the respective connector(s), the combination meter or the multivision display.
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- If the vehicle speed signal has a problem, the speedometer of combination meter will be affected. Confirm if the speedometer of combination meter works normally at the abnormal state to customers.
- When the own vehicle mark position becomes deviated when travelling backward, a problem may be present to the reverse signal from the inhibitor switch to multivision display. In this case, check if the rear view camera is operating normally. If there is a problem, troubleshoot the rear view camera.(Refer to.) Subsequently, carry out this troubleshooting.
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- Malfunctions of GPS antenna
- Malfunctions of combination meter
- Malfunctions of multivision display
- Damaged harness wires and connectors
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STEP 1. Confirmation in MMCS service mode
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Check the items below in the MMCS service mode (Refer to ).
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- Perform "Communications & Connection Check" in the MMCS service mode to check that the communication and wire connection with the GPS are in good condition.
- Perform "Vehicle Signal Check", and then check the status of the vehicle speed signal.
- Perform "Sensor Check", and then check the status of the vehicle speed sensor and the gyro sensor.
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Q.
Is the check result normal?
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YES (OK for all) : Go to Step 5.
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NO <GPS is not OK> : Go to Step 2.
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NO <The vehicle speed sensor is not OK, or vehicle speed pulse does not increase after starting from a standstill> : Go to Step 3.
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NO <Gyro sensor is not OK> : Go to Step 5.
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STEP 2. GPS reception check
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(1)Start the multivision display.
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(2)Press the "INFO" button.
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(3)Select "GPS Information".
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(4)Check if the GPS signals are received.
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Q.
Is the check result normal?
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Go to Step 5.
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Perform Inspection Procedure 5 "GPS signal cannot be received" (Refer to .), and then go to Step 5.
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STEP 3. Check the speed meter.
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Check whether the speed meter works normally. (Refer to.)
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Q.
Does the speedometer work normally?
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Go to Step 4.
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Diagnose the combination meter (Refer to Combination meter - Troubleshooting).
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STEP 4. Check of short to power supply, short to earth, and open circuit in SPD line between multivision display connector and combination meter connector
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Q.
Is the check result normal?
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Go to Step 5.
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Repair the connector(s) or wiring harness.
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STEP 5. Check of the troubles
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Drive the vehicle for some time with the GPS signals being received, and check if the own vehicle mark is dislocated.
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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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Replace the multivision display.
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