Mitsubishi Galant 9G. Manual — part 511
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-122
AC306223
A-13 (GR)
AB
CONNECTOR: A-13
1
4
7
8
2 3
5
13
14
17
15
12
16
11
10
9
6
AC306248AG
CONNECTORS: B-20, B-21
PCM
AIR
CLEANER
B-21 (GR)
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
JAE
41
37
32
40
39
23
21 22
35
31
30
26
36
27
43
42
25
24
38
34
29
33
28
B-20
B-21
B-20
AC210068
CONNECTOR: B-110
B-110 (B)
AE
TRANSMISSION
RANGE SWITCH
1
7
2
8
3
5
9
4
10
6
AC305231
CONNECTOR: C-01
AS
33
22
11
28
17
16
15
14
13
12
25
2324
2627
3
1 2
4 5
21
20
19
18
29 30
32
31
7
6
8
10
9
AC306349AB
CONNECTOR: C-20
4
3
1
5 6
2
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-123
.
CIRCUIT OPERATION
• Battery positive voltage is applied to the transmis-
sion range switch (terminal 8) when the ignition
switch is turned "ON."
• Battery positive voltage is applied to the PCM
(terminal 67) when the transmission range is in
the "P" range. The PCM judges that the transmis-
sion range is in the "P" range when the battery
positive voltage is applied.
• Battery positive voltage is applied to the PCM ter-
minal 61 (77, 73, 62, 75 or 72) when the selector
lever is in the "R" range ("N," "D," "3," "2" or "L"
range). The PCM judges that the selector lever is
in the "R" range ("N," "D," "3," "2" or "L" range)
when the battery positive voltage is applied.
.
DESCRIPTIONS OF MONITOR METHODS
• If no signal is input from transmission range
switch for more than 30 seconds, PCM judges
that transmission range switch has a failure.
.
MONITOR EXECUTION
• Continuous
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• Not applicable
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
AC207134
C-214
C-215
CONNECTORS: C-214, 215
AO
1
3 4
2
6
5
C-214
C-215
6
1
7
2
9
8
10
3
5
12
11
4
1314
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-124
LOGIC FLOW CHARTS (Monitor Sequence)
.
DTC SET CONDITIONS
Check Conditions, Judgement Criteria
• Transmission range switch: no signal detected.
(30 seconds)
.
OBD-II DRIVE CYCLE PATTERN
Start the engine, keep the vehicle stopped in "P," "R,"
"N," "D," "3," "2" and "L" ranges respectively for more
than one minute, and turn "LOCK" (OFF) the ignition
switch. Then restart the engine, and stop the vehicle
in "P," "R," "N," "D," "3," "2" and "L" ranges respec-
tively for more than one minute.
.
TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THIS CODE TO BE
SET ARE:)
• Malfunction of the transmission range switch
• Malfunction of the ignition switch
• Damaged harness or connector
• Malfunction of the PCM
AC205064
START
Is there no
input signal?
Yes
No
Continuous failure
for 30 secs.
Yes
Yes
Yes
No
No
No
Continuous failure
for 30 secs.
Is there more than
one input signal?
Malfunction
Good
Malfunction
END
AUTOMATIC TRANSAXLE DIAGNOSIS
TSB Revision
AUTOMATIC TRANSAXLE
23A-125
DIAGNOSIS
Required Special Tool:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A
STEP 1. Using scan tool MB991958, check data list item 61:
Transmission Range Switch.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to "ON" position.
(3) Set scan tool MB991958 to the data reading mode.
• Item 61: Transmission Range Switch.
• Move the selector lever to "P," "R," "N," "D," "3," "2,"
"L" and sport mode positions and confirm that the
selected transmission range match the positions
shown on scan tool MB991958. (Vehicles with sport
mode is indicated as "D" on the scan tool).
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Does the scan tool indication correspond to the actual
transmission range?
YES : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
− How to
Cope with Intermittent Malfunction
NO (no correct transmission range is displayed) : Go to
Step 2.
NO (Only "P" position is not displayed correctly) : Go
to Step 6.
NO (Only "R" position is not displayed correctly) : Go
to Step 12.
NO (Only "N" position is not displayed correctly) : Go
to Step 17.
NO (Only "D" position is not displayed correctly) : Go
to Step 22.
NO (Only "3" position is not displayed correctly)
<Vehicles without sport mode> : Go to Step 29.
NO (Only "2" position is not displayed correctly)
<Vehicles without sport mode> : Go to Step 34.
NO (Only "L" position is not displayed correctly)
<Vehicles without sport mode> : Go to Step 39.
NO [Only sport mode position is not displayed correctly
("D" is not displayed.)] <Vehicles with sport mode> : Go
to Step 44.
AC305412
AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
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