Mitsubishi Grandis. Manual — part 583
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-430
No.61.
OK: 2
Ω or less
(5) Continuity between A-16 intermediate connector
terminal No.12 and C-112 engine-ECU <M/T> or
engine-A/T-ECU <A/T> connector terminal
No.62.
OK: 2
Ω or less
CAUTION
Strictly observe the specified wiring harness
repair procedure. For details refer to
Q: Are the check result normal?
YES :
<All the voltages measure 2
Ω or less> Go
to Step 14 .
NO :
<Either or all of the voltages measure more
than 2
Ω> Repair the wiring harness
between the engine-ECU <M/T> or
engine-A/T-ECU <A/T> connector and the
intermediate connector, and then go to Step
8.
STEP 14. Resistance measurement at C-112
engine-ECU <M/T> or engine-A/T-ECU <A/T>
connector.
CAUTION
A digital multimeter should be used. For details
refer to
.
(1) Remove the engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and measure at the
equipment side.
(2) Resistance at C-112 engine-ECU <M/T> or
engine-A/T-ECU <A/T> connector terminal Nos.
61 and 62
OK: 120
± 20 Ω
Q: Is the check result normal?
YES :
<Within 120
± 20 Ω> Go to Step 8 .
NO :
<Not within 120
± 20 Ω> Replace the
engine-ECU <M/T> or engine-A/T-ECU
<A/T>, and then go to Step 8.
AC312553
Harness side: C-112
Test
harness
AT
Test
harness
Male side: A-16
AC310628AW
Harness side
Connector: C-112 <RHD>
C-112 (GR)
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
AC312553
Equipment side: C-112
Test
harness
AC
Test
harness
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-431
STEP 15. Resistance measurement at C-125
intermediate connector and A-07 joint connector
(CAN1).
NOTE: When checking A-07 joint connector (CAN1),
disassemble and check the engine compartment
relay box by referring to
.
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 (CAN1) and the
intermediate connector, and measure at the
wiring harness side.
(2) Ignition switch: OFF (LOCK)
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
(3) Ensure that the negative battery terminal is
disconnected.
(4) Continuity between C-125 intermediate
connector terminal No.26 and A-07 joint
connector (CAN1) terminal No.4
OK: 2
Ω or less
(5) Continuity between C-125 intermediate
connector terminal No.27 and A-07 joint
AC302572AD
Connector: A-07
Harness side
AC310628AB
Connector: C-125 <RHD>
AC312553 AU
Male side: C-125
Test harness
Harness side: A-07
Test
harness
AC312553
Male side: C-125
Test harness
AV
Harness side: A-07
Test
harness
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-432
connector (CAN1) terminal No.1
OK: 2
Ω or less
CAUTION
Strictly observe the specified wiring harness
repair procedure. For details refer to
Q: Are the check result normal?
YES :
<All the voltages measure 2
Ω or less> Go
to Step 8 .
NO :
<Either or all of the voltages measure more
than 2
Ω> Repair the wiring harness
between joint connector (CAN1) and the
intermediate connector, and then go to Step
8.
STEP 16. Connector check: C-126 diagnosis
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 17.
NO :
Repair the connector, or replace the joint
connector. Then go to Step 17.
STEP 17. Resistance measurement at C-09 joint
connector (CAN2) and C-126 diagnosis
connector.
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
diagnosis connector, and measure at the wiring
harness side.
(2) Ignition switch: OFF (LOCK)
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
(3) Ensure that the negative battery terminal is
AC310631AK
Connector: C-126 <RHD>
C-126 (B)
Harness side
(Front side)
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC310631AK
Connector: C-126 <RHD>
C-126 (B)
Harness side
(Front side)
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-433
disconnected.
(4) Continuity between C-09 joint connector (CAN2)
terminal No.7 and C-126 diagnosis connector
terminal No.6
OK: 2
Ω or less
(5) Continuity between C-09 joint connector (CAN2)
terminal No.18 and C-126 diagnosis connector
terminal No.14
OK: 2
Ω or less
CAUTION
Strictly observe the specified wiring harness
repair procedure. For details refer to
Q: Are the check result normal?
YES <all the resistances measure 2
Ω or less:
When any repair done> :
Retest the system.
YES <all the resistances measure 2
Ω or less:
When no repair done> :
Diagnose CAN bus lines
thoroughly
<Either of the resistances measures more than 2
Ω
or all the resistances measure more than 2
Ω> :
Repair the wiring harness between joint
connector (CAN2) and the diagnosis
connector.
AC312553
Harness side: C-09
Test
harness
AX
Front side : C-126
Test
harness
AC312553 AZ
Front side : C-126
Test
harness
Test
harness
Harness side: C-09
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