CENTRE DISPLAY
CHASSIS ELECTRICAL
54A-147
YES :
A poor connection, open circuit or other
intermittent malfunction is present in the
CAN bus lines between the engine-ECU
<M/T> or engine-A/T-ECU <A/T> and the
centre display unit (Refer to GROUP 00,
How to Use Troubleshooting/Inspection
Service Points
− How to Cope with
Intermittent Malfunctions
P.00-5
).
NO :
Replace engine-ECU <M/T> or
engine-A/T-ECU <A/T> and then go to step
6.
Step 5. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch to "ON" position.
(3) Check if the diagnosis code is set.
Q: Is the check result satisfactory?
YES :
A poor connection, open circuit or other
intermittent malfunction is present in the
CAN bus lines between the engine-ECU
<M/T> or engine-A/T-ECU <A/T> and the
centre display unit (Refer to GROUP 00,
How to Use Troubleshooting/Inspection
Service Points
− How to Cope with
Intermittent Malfunctions
P.00-5
).
NO :
Replace centre display and then go to step
6.
Step 6. Check whether the diagnosis code is
reset.
Recheck if the diagnosis code is set.
(1) Erase the diagnosis code.
(2) Turn the ignition switch to "ON" position.
(3) Check if the diagnosis code is set.
Q: Is the check result satisfactory?
YES :
The procedure is complete.
NO :
Go to Step 1.
Code No.U1108 Combination Meter Time-out
CAUTION
If diagnosis code U1108 is set in the centre
display, always diagnose the CAN bus lines.
CAUTION
Whenever the ECU is replaced, ensure that the
communication circuit is normal.
TROUBLE JUDGMENT
The centre display unit receives signals from the
combination meter via CAN bus lines. If the display
unit can not receive the necessary combination
meter signals, diagnosis code U1108 will be set.
COMMENTS ON TROUBLE SYMPTOM
Current trouble
• Connector(s) or wiring harness in the CAN bus
lines between the combination meter and the
centre display unit, the power supply system to
the display unit, the display unit itself, or the
combination meter may be defective.
Past trouble
• Carry out diagnosis with particular emphasis on
connector(s) or wiring harness in the CAN bus
lines between the combination meter and the
centre display unit, the power supply system to
the display unit. For diagnosis procedures, refer
to "How to cope with past trouble" (Refer to
GROUP 00, How to Use
Troubleshooting/Inspection Service Points
P.00-5
).
NOTE: For a past trouble, you may not find it by the
MUT-III CAN bus diagnostics even if there is any
failure in CAN bus lines. In this case, refer to
GROUP 00, How to Use
Troubleshooting/Inspection Service Points
−
How
to Cope with Intermittent Malfunctions
P.00-5
).
and check the CAN bus lines. You can narrow
down the possible cause of the trouble by
referring to the diagnosis code, which is set
regarding the CAN communication-linked ECUs
(Refer to GROUP 54D, Explanation about the
MUT-III CAN Bus Diagnostics
P.54D-9
).
POSSIBLE CAUSES
• Damaged harness wires and connectors
• Malfunction of combination meter
• Malfunction of centre display unit