Inspection Procedure 5: The Rear Display not displays the Navigation System Picture.

caution

Whenever the rear display unit is replaced, ensure that the communication circuit is normal.

DIAGNOSIS PROCEDURE

STEP 1. Check the MMCS navigation screen.

Check whether the MMCS navigation screen is displayed normally.

Q. Is the check result normal?

	Go to Step 2.

	Diagnose the MMCS. Refer to .

STEP 2. Check the communication and wire connection in the MMCS service mode.

Perform "Network/Connect Line Check" in the MMCS service mode to check that the communication and wire connection with the rear display unit^* are OK. Refer to

note

*: Is displayed as "Rear Seat Display" in the service mode.

Q. Is the check result normal?

	Go to Step 3.

	Go to Step 5.

STEP 3. Connector check: E-130 rear display unit connector, D-207 audio visual navigation unit connector

Q. Is the check result normal?

	Go to Step 4.

	Repair the defective connector.

STEP 4. Check the wiring harness between E-130 rear display unit connector terminal Nos.35 and D-207 audio visual navigation unit connector terminal Nos.32.

Check the communication lines for open circuit and short circuit.

note

Prior to the wiring harness inspection, check intermediate connector D-131, and repair if necessary.

Q. Is the check result normal?

	Go to Step 5.

	Repair the wiring harness.

STEP 5. Connector check: E-129 rear display unit connector, D-210 audio visual navigation unit connector

Q. Is the check result normal?

	Go to Step 6.

	Repair the defective connector.

STEP 6. Check the wiring harness between E-129 rear display unit connector terminal No.14 and D-210 audio visual navigation unit connector terminal No.6.

Check the communication lines for open circuit and short circuit.

note

Prior to the wiring harness inspection, check intermediate connector D-131, and repair if necessary.

Q. Is the check result normal?

	Go to Step 7.

	Repair the wiring harness.

STEP 7. Substitute a known good rear display unit, and check the trouble symptom.

Check whether image sent from the MMCS is displayed on the rear display unit normally.

Q. Is the check result normal?

	Replace the rear display unit.

	Replace the audio visual navigation unit.