Mitsubishi Galant 9G. Manual — part 514
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-134
STEP 11. Check PCM connector B-21 for loose, corroded
or damaged terminals, or terminals pushed back in the
connector.
Q: Are the connector and terminals in good condition?
YES : Go to Step 5.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC306248AC
B-21
(B)
CONNECTOR: B-21
PCM
AIR
CLEANER
73
80
54
67
60
71 72
77 78 79
64
51
59
58
65
52
66
53
75
74
76
81 82
83
63
JAE
62
68
61
55
69
56
70
57
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-135
STEP 12. Check the transmission range switch.
Measure the resistance between the terminals for each trans-
mission range as indicated in the table below.
NOTE: For vehicles with sport mode, four positions (P, R, N, D)
are used.
Q: Is the measured resistance less than 2 ohms for each
transmission range?
YES : Go to Step 13.
NO : Replace the transmission range switch. Refer to
GROUP 23B, Transaxle
TRANSMISSION
RANGE
TERMINAL CONNECTION OF
TESTER
SPECIFIED CONDITION
P
3
− 8, 9 − 10
Less than 2 ohms.
R
7
− 8
N
4
− 8, 9 − 10
D
1
− 8
3
5
− 8
2
2
− 8
L
6
− 8
AC305881
AC305532
AC305679
<F4A4B>
<F4A5A>
AC
TRANSMISSION
RANGE SWITCH
TRANSMISSION
RANGE SWITCH
AC304078
P
R
N
D
<F4A4B>
AC
3
2
L
AC210182AC
P
R
N
D
<F4A5A>
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-136
STEP 13. Check transmission range switch connector
B-110 for loose, corroded or damaged terminals, or
terminals pushed back in the connector.
Q: Are the connector and terminals in good condition?
YES : Go to Step 14.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC210068
CONNECTOR: B-110
B-110 (B)
AE
TRANSMISSION
RANGE SWITCH
1
7
2
8
3
5
9
4
10
6
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-137
STEP 14. Measure the transmission range switch output
voltage at PCM connector B-21 by using check harness
special tool MB991923.
(1) Disconnect all the connectors from the PCM.
(2) Connect special tool MB991923 (check harness) between
the PCM and the body-side harness connector.
(3) Turn the ignition switch to the "ON" position.
(4) Move the selector lever to the "R" position.
AC306248AC
B-21
(B)
CONNECTOR: B-21
PCM
AIR
CLEANER
73
80
54
67
60
71 72
77 78 79
64
51
59
58
65
52
66
53
75
74
76
81 82
83
63
JAE
62
68
61
55
69
56
70
57
AC209793AG
SPECIAL TOOL 33-PIN CONNECTOR
(PCM CONNECTOR B-21)
B-21
(GR)
55
56
54 53 52 51
57
62 61 60 59 58
63
69 68 67 66 65 64
70
75 74 73 72 71
76
82 81 80 79 78 77
83
PCM
MB991923
BODY SIDE
HARNESS
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