Inspection Procedure 2: Current location is not displayed correctly.
caution |
Whenever the multivision display is replaced, ensure that the power supply circuit and the earthing circuit are normal. (Check that the voltage is 10 V or more.)
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COMMENTS ON TROUBLE SYMPTOM
If a current location (and vehicle direction) is not displayed correctly, one of the following malfunctions may be present.
- Orientation signal, which is received through the GPS antenna, is abnormal.
- Abnormal vehicle speed signal sent by the combination meter
- Defective gyro sensor (integrated in the multivision display)
PROBABLE CAUSES
- Malfunction of GPS antenna
- The multivision display may be defective.
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STEP 1. Self-connection check by MMES
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(1)Display the "Check Connectivity" screen (Refer to ).
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(2)Check that "GPS" is "Connection."
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(3)Drive the vehicle to check whether "OK" is displayed on "Speed Sensor" item.
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(4)Check that "Gyro Sensor" is "OK."
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Q.
Is the check result normal?
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YES : Go to Step 4.
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NO <"No connection" is displayed on "GPS"> : Go to Step 2.
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NO <"---" is displayed on "Speed Sensor"> : Go to Step 3.
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NO <"---" is displayed on "Gyro Sensor"> : Replace the multivision display.
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STEP 2. Check the GPS antenna.
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Check the GPS antenna for damage.
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Q.
Is the check result normal?
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Go to Step 4.
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Replace the GPS antenna.
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STEP 3. 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 4.
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Repair the connector(s) or wiring harness.
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STEP 4. Check the signal reception state of the GPS antenna.
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Check whether at least four GPS signals are received on the MMES GSP position screen.
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How to check
- Display the "Check Connectivity" screen (Refer to
).
- Press "GPS" button to display how the GPS signal are received on the GPS position screen.
- Check whether at least four 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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Move the vehicle in an open outside area where GPS data can be received from satellites. Then check whether current location is pinpointed. If not, proceed to Step 5.
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STEP 5. Reset the MMES and check the trouble symptom.
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1.
caution |
If the MMES is reset, all the data stored by customer will disappear. Therefore, prior to the reset, the agreement of the customer should be obtained.
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Reset the MMES.(Refer to
.)
2.Check whether current location is pinpointed.
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Q.
Is the check result normal?
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The diagnosis is complete.
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Replace the multivision display.
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