Mitsubishi Grandis. Manual — part 515
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-158
STEP 31. Voltage measurement at the C-125
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 connector, and measure at its
male-side intermediate connector (at the front
wiring harness side).
(2) Connect the negative battery terminal, and turn
the ignition switch to the ON position.
(3) Voltage between C-125 intermediate connector
terminal No.26 and body earth
OK: 4.0 V or less
Q: Is the check result normal?
YES :
<4.0 V or less> Go to Step 32.
NO :
<more than 4.0 V> Go to Step 49.
STEP 32. 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 33 .
NO :
Repair a defective connector or replace the
joint connector.
AC310628AB
Connector: C-125 <RHD>
AC209365KC
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
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-159
STEP 33. Voltage 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.
(2) Connect the negative battery terminal, and turn
the ignition switch to the ON position.
(3) Voltage between C-09 joint connector (CAN2)
terminal No.6 and body earth
OK: 4.0 V or less
(4) Voltage between C-09 joint connector (CAN2)
terminal No.8 and body earth
OK: 4.0 V or less
(5) Voltage between C-09 joint connector (CAN2)
terminal No.5 and body earth
OK: 4.0 V or less
(6) Voltage between C-09 joint connector (CAN2)
terminal No.9 and body earth
OK: 4.0 V or less
(7) Voltage between C-09 joint connector (CAN2)
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC209365KL
Harness side: C-09
Test harness
AC209365KR
Harness side: C-09
Test harness
AC209365KJ
Harness side: C-09
Test harness
AC209365KU
Harness side: C-09
Test harness
AC209365KN
Harness side: C-09
Test
harness
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-160
terminal No.4 and body earth
OK: 4.0 V or less
(8) Voltage between C-09 joint connector (CAN2)
terminal No.3 and body earth
OK: 4.0 V or less
(9) Voltage between C-09 joint connector (CAN2)
terminal No.7 and body earth
OK: 4.0 V or less
(10)Disconnect the negative battery terminal.
Q: Are the check result normal?
YES <all of the measurement results show 4.0 V or
less> :
Go to Step 48 .
NO <The voltage between terminal No.6 and body
earth is more than 4.0 V> :
Go to Step 34 .
NO <The voltage between terminal No.8 and body
earth is more than 4.0 V> :
Go to Step 35 .
NO <The voltage between terminal No.5 and body
earth is more than 4.0 V> :
Go to Step 37 .
NO <The voltage between terminal No.9 and body
earth is more than 4.0 V> :
Go to Step 39 .
NO <The voltage between terminal No.4 and body
earth is more than 4.0 V> :
Go to Step 43 .
NO <The voltage between terminal No.3 and body
earth is more than 4.0 V> :
Go to Step 45 .
NO <The voltage between terminal No.7 and body
earth is more than 4.0 V> :
Go to Step 47 .
STEP 34. Voltage 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.
(2) Connect the negative battery terminal, and turn
the ignition switch to the ON position.
(3) Voltage between C-09 joint connector (CAN2)
AC209365KI
Harness side: C-09
Test
harness
AC209365KF
Harness side: C-09
Test harness
AC310631AX
Connector: C-02 <RHD>
Harness side
C-02
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC209365KL
Harness side: C-09
Test harness
DIAGNOSIS
CONTROLLER AREA NETWORK (CAN)
54D-161
terminal No.6 and body earth
OK: Less than 1.0 V
(4) Disconnect the negative battery terminal.
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 joint connector (CAN2) and the
combination meter connector.
STEP 35. 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 36 .
NO :
Repair the defective connector.
STEP 36. Voltage 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.
(2) Connect the negative battery terminal, and turn
the ignition switch to the ON position.
(3) Voltage between C-09 joint connector (CAN2)
AC310631AB
Connectors: C-106 <RHD>
Harness side
AC310628AY
Connector: C-09 <RHD>
C-09 (GR)
Harness side
AC310631AB
Connectors: C-106 <RHD>
Harness side
AC209365KR
Harness side: C-09
Test harness
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