ENGINE (J05E)/TROUBLESHOOTING
2–8
4.
AFTER COMPLETING THE MALFUNCTION ANALYSIS, ERASE
THE MALFUNCTION MEMORY STORED IN THE PAST. OTHER-
WISE, THE MALFUNCTION LIGHT IN THE DISPLAY WILL
REMAIN LIT.
5.
CONNECTOR DRAWING, ALL OF WHICH HAS A VIEW TO BE
SEEN FROM THE CONNECTION SIDE, INSERT THE TESTING
LEAD FROM THE BACKSIDE.
6.
USING A CIRCUIT TESTER
•
Use a circuit tester with an internal resistance of 100 k
or
greater in the voltage measuring range.
7.
USING A SIGNAL CHECK HARNESS
•
To prevent breakage of the ECU connector, connect the signal
check harness and perform measuring by bringing the test lead
into contact with the signal check harness side (contact box).
NOTICE
The terminal numbers in the text and in the illustrations corre-
spond to the table on the next page (computer pin assignment) as
shown below.
A
10
9
8
7
6
5
4
2
1
3
20
19
18
17
16
15
14
12
11
13
30
29
28
27
26
25
24
22
21
23
40
39
38
37
36
35
34
32
31
33
A
(1 to 40)
V1
VF
V2
V3
MREL
V4
EXB
V5
PTOC
V6
-
V7
STCR
V11
NSW
V12
V13
IGSW
V14
SP1
V15
-
V16
CANL
V17
STA
V21
VF2
V22
V23
MRL2
V24
SREL
V25
-
V26
-
V27
-
V31
PTO
V32
V33
IG
V34
V35
-
V36
CANH
V37
ESTP
TAC
Main/
Actuator power
relay 1
Exhaust brake
relay
PTO cut relay
-
Glow
(Indic
Power supply 1
Starter cut relay
Starter switch 1
Vehicle speed
pulse converter
-
CAN
communication
line
CA
commun
lin
Neutral switch
Glow relay
Starter signal
Main/
Actuator power
relay 2
-
-
Diagnos
Power supply 2
-
Starter switch 2
-
CAN
communication
line
CA
commun
lin
PTO switch 1
Engine stop
switch
A
TACHO Pulse
Signal check
harness
(contact box)
V23
Example: V23 terminal
Computer (ECU) terminal signal
Computer (ECU) terminal No.
SHTS021270300004