Inspection Procedure 8

INSPECTION PROCEDURE 8: The navigation display screen runs or the screen color tone is considerably unnatural.




TROUBLESHOOTING HINTS
- The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
- The DIN cable may be defective
- The multi-center display may be defective
- The radio, CD player and CD changer may be defective
- The navigation unit may be defective

DIAGNOSIS

STEP 1. Check if the audio screen is displayed normally.

Q: Is the audio screen display normal?

YES: Go to Step 2

NO: Refer to Inspection Procedure 6: "The audio communication error screen is displayed to the multi-center display".

STEP 2. Check the DIN cable connector shape and engagement between the navigation unit and the radio, the CD player, and CD changer.

Q: Is there any abnormality to the DIN cable connector shape and engagement between the navigation unit and the radio, CD player, and CD changer?

YES: Go to Step 3.

NO: Replace the DIN cable, the navigation unit, or the radio, CD player and CD changer. Check if the navigation screen is displayed normally to the multi-center display.

STEP 3. DIN cable inspection between the navigation unit and the radio, CD player, and CD changer

Q: Is the DIN cable between the navigation unit and the radio, CD player, and CD changer normal?

YES: Go to Step 4.

NO: Replace the DIN cable. Check if the navigation screen is displayed normally to the multi-center display.




STEP 4. Check multi-center display connector C-128 and radio, CD player and CD changer connector C-113 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q: Are multi-center display connector C-128 and radio,CD player and CD changer connector C-113 in good condition?

YES: Go to Step 5.

NO: Repair the damaged parts. Then, check if the navigation screen is displayed normally to the multi-center display.




STEP 5. Check the wiring harness between multi-center display connector C-128 (terminal 7, 8, 17) and radio, CD player and CD changer connector C-113 (terminal 27, 28, 39).

Q: Are the wiring harness between multi-center display connector C-128 (terminal 7, 8, 17) and radio, CD player and CD changer connector C-113 (terminal 27, 28, 39) in good condition?

YES: Go to Step 6.

NO: The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. Check if the navigation screen is displayed normally to the multi-center display.

STEP 6. Temporarily replace the navigation unit, and check that the navigation screen is displayed.

Q: When the navigation unit is temporarily replaced, is the navigation screen displayed?

YES: Replace the navigation unit. Check if the navigation screen is displayed normally to the multi-center display.

NO: Go to Step 7.

STEP 7. Temporarily replace the multi-center display, and check that the navigation screen is displayed.

Q: When the multi-center display is temporarily replaced, is the navigation screen displayed?

YES: Replace the multi-center display. Check if the navigation screen is displayed normally to the multi-center display.

NO: Replace the radio, and the CD player and CD changer. Check if the navigation screen is displayed normally to the multi-center display.