Owner`s manual

66
Chapter 10 ECU Reprogramming
Notes:
• This function enables the program installed in ECU to be reprogrammed using M.U.T.-III.
• As VIN or other setting information on ECU is not erased by this reprogramming, you do
not need to rewrite VIN.
10-1. Process Flow Chart
 Reprogramming by K-Line communication system
-There are 7 different ways for ECU reprogramming as shown below.
-Procedure (a) is recommendable due to the most simple in operation.
-File extension code is “ .rpg”.
Process flow chart (Chapter No.)
Device
V.C.I. alone PC + VCI (Optional)
(a) (b) (c) (d) (e) (f) (g)
Procedure name
Auto data
retrieval
Load RPG file
ECU
reprogram
Automatic
reprogramming
(K-line)
Database File
Display
Reprogram
Data Selection
Search
Data selection method Automatic
Select from
Data library
- Automatic
Select from
data library in
PC
Select from
data library in
any drive
Select by key
of vehicle
info.
1 CD-Rom => PC 10-3-1 10-3-1 - 10-3-1 10-3-1 10-3-1 10-3-1
2
PC =>
memory card
10-4-1
10-4-1 - - - - -
3
memory card
=> VCI
10-4-2
+
10-4-3(a)
10-4-2
+
10-4-3(b)
- - - - -
4
PC => VCI
(Not via
memory card)
-
- -
10-5-1
+
10-5-2(a)
10-5-1
+
10-5-2(b)
10-5-1
+
10-5-2(c)
10-5-1
+
10-5-2(d)
5 VCI => ECU 10-4-4 10-4-4
10-4-3(c)+
10-4-4
10-5-3 10-5-3 10-5-3 10-5-3
Note Recommended
In case of (a)
failure
Special use
only
(When data
stored in VCI)
In case
memory card is
N/A
In case
memory card is
N/A and (d)
failure
In case
memory card is
N/A and (d)
failure
In case
memory card
is N/A and (d)
failure
 Reprogramming by CAN
communication system
-This is the only way for reprogramming by CAN communication system.
-This procedure allows you to select an arbitrary system (ECU) to reprogram as required.
-File extension code is “ .cff”.
Device
PC+V.C.I.
Process name
Automatic
Reprogramming (CAN)
Data selection Automatic
1 CD-Rom => PC 10-3-1
2 PC => VCI =>ECU 10-6
ECU Reprogramming