Mitsubishi Grandis. Manual — part 843
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-39
STEP 5. Connector check: C-112 engine-A/T-ECU
connector
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
STEP 6. MUT-III data list
Item 0002: Output shaft speed sensor (Refer to data
list reference table
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Cope with Intermittent
NO :
Replace the engine-A/T-ECU.
STEP 7. Connector check: C-112 engine-A/T-ECU
connector, C-116 J/C (4)
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Repair the defective connector.
AC311284
Connector: C-112 <LHD>
Connector: C-112 <RHD>
Harness side
Engine-A/T-ECU
C-112 (GR)
C-112 (GR)
Engine-A/T-ECU
AG
AC311284
Connector: C-112 <LHD>
Connector: C-112 <RHD>
Harness side
Engine-A/T-ECU
C-112 (GR)
C-112 (GR)
Engine-A/T-ECU
AG
AC310615
C-116
Connector: C-116
<LHD>
AP
23
12
1
7
29
18
4
26
15
1314
25
24
2 3
1617
28
27
5 6
10
32
21
1920
3031
8 9
22
33
11
AC310628AS
C-116
Connector: C-116
<RHD>
23
12
1
7
29
18
26
13
25
24
2
28
27
4
15
14
3
1617
5 6
10
32
21
1920
3031
8 9
22
33
11
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-40
STEP 8. Check the harness between output shaft
speed sensor connector B-108 terminal No.1 and
engine-A/T-ECU connector C-112 terminal No.88.
Check the earth line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the wiring harness.
STEP 9. Measure the voltage at output shaft
speed sensor connector B-108.
(1) Disconnect the connector, and measure the
voltage between terminal 3 and earth at the
wiring harness side.
(2) Turn the ignition switch to the ON position.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Go to Step 10.
AC302452AH
B-108 (GR)
Connector: B-108
Harness side
AC311284
Connector: C-112 <LHD>
Connector: C-112 <RHD>
Harness side
Engine-A/T-ECU
C-112 (GR)
C-112 (GR)
Engine-A/T-ECU
AG
AC302452AH
B-108 (GR)
Connector: B-108
Harness side
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-41
STEP 10. Connectors check: C-203 J/B
connector, C-18 intermediate connector, C-116
J/C (4), C-33 J/C (7) <RHD>
TROUBLESHOOTING <A/T>
AUTOMATIC TRANSMISSION (FF)
23A-42
Check for the contact with terminals.
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Repair the defective connector.
AC310623
Connectors: C-203 <LHD>
AL
Harness side
10
1
6
14
5
12
13
4
11
7
2
3
8
9
Junction block (Front view)
AC310618
Connectors: C-203 <RHD>
AK
Harness side
10
1
6
14
5
12
13
4
11
7
2
3
8
9
Junction block (Front view)
AC310615
AQ
Connector: C-18
<LHD>
C-18
2
6
1
5
9
3
7 8
10
4
AC310628
C-18
AC310628AT
Connector: C-18
<RHD>
C-18
2
6
1
5
9
3
7 8
10
4
AC310615
C-116
Connector: C-116
<LHD>
AP
23
12
1
7
29
18
4
26
15
1314
25
24
2 3
1617
28
27
5 6
10
32
21
1920
3031
8 9
22
33
11
AC310628AS
C-116
Connector: C-116
<RHD>
23
12
1
7
29
18
26
13
25
24
2
28
27
4
15
14
3
1617
5 6
10
32
21
1920
3031
8 9
22
33
11
AC310631AV
C-33
Connector: C-33
<RHD>
2
1
3
13
12
14
21
10
5
4
6
16
15
17
7 8 9
19
18
20
11
22
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