Mitsubishi Grandis. Manual — part 522
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-186
STEP 21. Resistance measurement at the 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 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 A-07 joint connector (CAN1)
terminal No.3 and body earth
OK: 1 k
Ω or more
(4) Resistance between A-07 joint connector (CAN1)
terminal No.2 and body earth
OK: 1 k
Ω or more
Q: Are the check result normal?
YES <all of the measurement results show 1 k
Ω or
more> :
Go to Step 27 .
NO <The resistance between terminal No.3 and
body earth is less than 1 k
Ω> :
Go to Step 22 .
NO <The resistance between terminal No.2 and
body earth is less than 1 k
Ω> :
Go to Step 25 .
STEP 22. Connector check: A-16 intermediate
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 23 .
NO :
Repair the defective connector.
AC302572AD
Connector: A-07
Harness side
AC209364
Harness side: A-07
AC209364LN
Test
harness
AC209364
Harness side: A-07
AC209364LO
Test
harness
AC310403
AC
Connector: A-16 <LHD>
A-16 (B)
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-187
STEP 23. Resistance measurement at the 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.
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 A-07 joint connector (CAN1)
terminal No.3 and body earth
OK: 1 k
Ω or more
Q: Is the check result normal?
YES :
<1 k
Ω or more> Go to Step 24.
NO :
<less than 1 k
Ω> Repair the wiring harness
between the joint connector (CAN1) and the
intermediate connector.
STEP 24. Resistance measurement at the A-16
intermediate 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 engine-ECU <M/T> or
engine-A/T-ECU <A/T> connector and the
AC302572AD
Connector: A-07
Harness side
AC310403
AC
Connector: A-16 <LHD>
A-16 (B)
AC209364
Harness side: A-07
AC209364LN
Test
harness
AC310403
AC
Connector: A-16 <LHD>
A-16 (B)
AC310615
AS
Harness side
Connector: C-112 <LHD>
C-112 (GR)
61
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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
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-188
intermediate 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 A-16 intermediate connector
terminal No.12 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 17,
Diagnose CAN bus lines thoroughly. Refer
to
NO :
<less than 1
Ω> Repair the wiring harness
between the intermediate connector and the
engine-ECU <M/T> or engine-A/T-ECU
<A/T> connector.
STEP 25. Connector check: A-03 ABS-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 26 .
NO :
Repair the defective connector.
STEP 26. Resistance measurement at the 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
ABS-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
AC209364
AC209364
AC209364
Male side: A-16
AC209364EF
Test
harness
AC310401
Connector: A-03 <LHD>
Harness side
AK
AC310401
Connector: A-03 <LHD>
Harness side
AK
AC302572AD
Connector: A-07
Harness side
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-189
disconnected.
(3) Resistance between A-07 joint connector (CAN1)
terminal No.2 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 17,
Diagnose CAN bus lines thoroughly. Refer
to
NO :
<less than 1 k
Ω> Repair the wiring harness
between the joint connector (CAN1) and the
ABS-ECU connector.
STEP 27. Resistance measurement at the 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.
CAUTION
When measuring the resistance, disconnect the
negative battery terminal. For details refer to
(2) Ensure that the negative battery terminal is
AC209364
Harness side: A-07
AC209364LO
Test
harness
AC302572AD
Connector: A-07
Harness side
AC310613
AD
Connector: C-125 <LHD>
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