Mitsubishi Grandis. Manual — part 544
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-274
disconnected.
(3) Resistance between C-125 intermediate
connector terminal No.27 and body earth
OK: 1 k
Ω or more
Q: Is the check result normal?
YES :
<1 k
Ω or more> Go to Step 5.
NO :
<less than 1 k
Ω> Go to Step 22.
STEP 5. Connector check: C-09 joint connector
(CAN2)
CAUTION
The strand end of the twist wire should be within
10 cm from the connector. For details refer to
When checking the joint connector, ensure that its
wiring harness side and its short pins are not
damaged.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair a defective connector or replace the
joint connector.
STEP 6. Resistance measurement at C-09 joint
connector (CAN2).
CAUTION
A digital multimeter should be used. For details
refer to
.
CAUTION
The test wiring harness should be used. For
details refer to
(1) Disconnect the connector, and measure at the
wiring harness side.
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
(2) Ensure that the negative battery terminal is
disconnected.
(3) Resistance between C-09 joint connector (CAN2)
AC209364LE
Male side: C-125
Test harness
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC209350
1
12
2
13
3
14
4
15
5
16
6
17
7
18
8
19
9
20
10
21
11
22
AB
Short pin
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC209364LI
Harness side: C-09
Test
harness
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-275
terminal No.17 and body earth
OK: 1 k
Ω or more
(4) Resistance between C-09 joint connector (CAN2)
terminal No.19 and body earth
OK: 1 k
Ω or more
(5) Resistance between C-09 joint connector (CAN2)
terminal No.16 and body earth
OK: 1 k
Ω or more
(6) Resistance between C-09 joint connector (CAN2)
terminal No.20 and body earth
OK: 1 k
Ω or more
(7) Resistance between C-09 joint connector (CAN2)
terminal No.15 and body earth
OK: 1 k
Ω or more
(8) Resistance between C-09 joint connector (CAN2)
terminal No.14 and body earth
OK: 1 k
Ω or more
(9) Resistance between C-09 joint connector (CAN2)
terminal No.18 and body earth
OK: 1 k
Ω or more
Q: Are the check result normal?
AC209364LF
Harness side: C-09
Test harness
AC209364MF
Harness side: C-09
Test
harness
AC209364MG
Harness side: C-09
Test harness
AC209364LM
Harness side: C-09
Test
harness
AC209364ML
Harness side: C-09
Test
harness
AC209364LG
Harness side: C-09
Test
harness
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-276
YES <all of the measurement results show 1 k
Ω or
more> :
Go to Step 21.
NO <The resistance between terminal No.17 and
body earth is less than 1 k
Ω> :
Go to Step 7.
NO <The resistance between terminal No.19 and
body earth is less than 1 k
Ω> :
Go to Step 8.
NO <The resistance between terminal No.16 and
body earth is less than 1 k
Ω> :
Go to Step 10.
NO <The resistance between terminal No.20 and
body earth is less than 1 k
Ω> :
Go to Step 12.
NO <The resistance between terminal No.15 and
body earth is less than 1 k
Ω> :
Go to Step 16.
NO <The resistance between terminal No.14 and
body earth is less than 1 k
Ω> :
Go to Step 18.
NO <The resistance between terminal No.18 and
body earth is less than 1 k
Ω> :
Go to Step 20.
STEP 7. Resistance measurement at C-09 joint
connector (CAN2).
CAUTION
A digital multimeter should be used. For details
refer to
CAUTION
The test wiring harness should be used. For
details refer to
(1) Disconnect the joint connector (CAN2) and the
combination meter connector, and measure at
the wiring harness side.
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
(2) Ensure that the negative battery terminal is
disconnected.
(3) Resistance between C-09 joint connector (CAN2)
terminal No.17 and body earth
OK: 1 k
Ω or more
CAUTION
Strictly observe the specified wiring harness
repair procedure. For details refer to
Q: Is the check result normal?
YES :
<1 k
Ω or more> Follow diagnostic item 20,
Diagnose CAN bus lines thoroughly. Refer
to
.
NO :
<less than 1 k
Ω> Repair the wiring harness
between the joint connector (CAN2) and the
combination meter connector.
STEP 8. Connector check: C-106 A/C-ECU
connector
CAUTION
The strand end of the twist wire should be within
10 cm from the connector. For details refer to
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the defective connector.
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC209364LI
Harness side: C-09
Test
harness
AC310631AB
Connectors: C-106 <RHD>
Harness side
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-277
STEP 9. Resistance measurement at C-09 joint
connector (CAN2).
CAUTION
A digital multimeter should be used. For details
refer to
CAUTION
The test wiring harness should be used. For
details refer to
(1) Disconnect the joint connector (CAN2) and the
A/C-ECU connector, and measure at the wiring
harness side.
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
(2) Ensure that the negative battery terminal is
disconnected.
(3) Resistance between C-09 joint connector (CAN2)
terminal No.19 and body earth
OK: 1 k
Ω or more
CAUTION
Strictly observe the specified wiring harness
repair procedure. For details refer to
Q: Is the check result normal?
YES :
<less than 1.0 V> Follow diagnostic item 20
"Diagnose CAN bus lines thoroughly." Refer
to
.
NO :
<1.0 V or more> Repair the wiring harness
between the joint connector (CAN2) and the
A/C-ECU connector.
STEP 10. Connector check: C-221 ETACS-ECU
connector
CAUTION
The strand end of the twist wire should be within
10 cm from the connector. For details refer to
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Repair the defective connector.
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC310631AB
Connectors: C-106 <RHD>
Harness side
AC209364LF
Harness side: C-09
Test harness
AC310620
Connector: C-221
Junction block
(Rear view)
<RHD>
AC
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
Harness side
C-221(GR)
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