The combination meter receives communication standby command from the ETACS-ECU. If the combination
meter receives the indicator or warning lamp illumination request signal from the ETACS-ECU
for at least one second while communication standby command is ON, diagnosis code No. U1206 will
be set. The indicator lamps and warning lamps will illuminate when the diagnosis code is set.
COMMENTS ON TROUBLE SYMPTOM
It is suspected that the input signal system to the ETACS-ECU is defective or the combination
meter is defective.
PROBABLE CAUSES
Malfunction of the combination meter
Malfunction of the ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list
Check the following indicator and warning lamps.
Open each door.
Item No.
Item name
Normal condition
Item A0
Door indicator
OFF → ON
Move the turn signal lamp switch to the "right turn" position.
Item No.
Item name
Normal condition
Item B1
Turn signal indicator(Right)
OFF → ON
Move the turn signal lamp switch to the "left turn" position.
Item No.
Item name
Normal condition
Item B2
Turn signal indicator(Left)
OFF → ON
Move the dimmer switch from the OFF position to the ON position.
Item No.
Item name
Normal condition
Item B4
High beam indicator
OFF → ON
Move the fog lamp switch from the OFF position to the ON position.
Item No.
Item name
Normal condition
Item B3
Front fog lamp indicator
OFF → ON
Move the lighting switch from OFF to the tail lamp position.
Item No.
Item name
Normal condition
Item BA
Positionlamp indicator
OFF → ON
OK: Normal conditions are displayed for all the items
Q.
Are the check result normal?
Go to Step 2
Diagnose the ETACS-ECU.Refer to . Perform troubleshooting
and go to Step 2.
STEP 2. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set to the combination meter.
(1)Erase the diagnosis code.
(2)Turn the electric motor switch from "LOCK" (OFF) position to "ON" position.
(3)On completion, check that the diagnosis code is reset.
Q.
Is the diagnosis code set?
Replace the combination meter and check whether the combination meter-related diagnosis
code is set.
Diagnose the ETACS-ECU.Refer to 
. Perform troubleshooting
and go to Step 2.