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Inspection Procedure 5: Nothing is displayed in the combiner display area (HUD can be activated.)
Inspection Procedure 6: Part of information is not displayed correctly in the combiner display area (HUD can be activated.)
 
 
cautionBefore replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
TECHNICAL DESCRIPTION (COMMENT)
If nothing is displayed in the combiner display area, or if some information is not correctly displayed in the combiner display area, there may be a malfunction of HUD or an abnormality of the meter system.
 
 
TROUBLESHOOTING HINTS
  • The HUD may be defective
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check special function.
Check whether the combiner display area is normal by using the special function of the HUD.
(1)
cautionTo prevent damage to scan tool (M.U.T.-IIISE), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-IIISE).
Connect scan tool (M.U.T.-IIISE). Refer to "How to connect the Scan Tool (M.U.T.-IIISE) ."
(2) Turn the ignition switch to the "ON" position.
(3) Set the combiner to the OPEN state. (After starting the engine or turning the ignition switch ON, operate the HUD ON/OFF switch.)
(4) Select the test from the special function, and select the LCD test to carry out the test.
test
  • Item 1: LCD test (Refer to ).
OK: Normal conditions are displayed.
Is the check result normal?
Go to Step 2.
Replace the HUD.
 
STEP 2. Retest the system
Check whether the indication is normal in the combiner display area.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Troubleshoot the combination meter. Refer to .