Mitsubishi Montero (2002-2004). Manual — part 910
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-123
DTC 28: Transmission Range Switch System (Short Circuit)
.
Transmission Range Switch System Circuit
Refer to
.
.
CIRCUIT OPERATION
Refer to
.
.
DTC SET CONDITIONS
If the PCM detects more than one transmission
range switch input signal for thirty seconds, it is
determined that there is a short circuit in the trans-
mission range switch and DTC 28 is set.
.
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, connector
• Malfunction of the PCM
DIAGNOSIS
Required Special Tool:
• MB991502: Scan Tool (MUT-II)
STEP 1. Check the transmission range switch.
Measure the resistance between the terminals for each selec-
tor position as indicated in the table above.
Q: Does the resistance measure less than 2 ohms for each
selector position?
YES : Go to Step 2.
NO : Replace the transmission range switch. Refer to
GROUP 23B, Transmission
STEP 2. Check transmission range switch connector C-04
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 3.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
TRANSMISSION
RANGE
TERMINAL
CONNECTION OF
TESTER
SPECIFIED
CONDITION
P
1
− 7
Less than 2 ohms.
R
7
− 8
N
2
− 7
D
3
− 7
ACX01187AD
P
R
N
D
AC204395
CONNECTOR : C-04
AF
C-04 (B)
4
9
5
10
3
8
2
7
6
1
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-124
STEP 3. Check PCM connector D-134 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 4.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC204681AC
CONNECTOR: D-134
D-134 (GR)
61 62
63 64
65 66 67 68 69 70 71 72 73
82
89
81
88
80
79
78
77
87
86
85
76
75
74
84
83
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-125
STEP 4. Measure the switch output voltage at PCM
connector D-134 by backprobing. ("P" position)
(1) Do not disconnect connector D-134.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 66 and ground by
backprobing.
• When transmission range is "P," voltage should mea-
sure battery positive voltage.
• When transmission range is "R," voltage should mea-
sure 0.5 volt or less.
• When transmission range is "N," voltage should mea-
sure 0.5 volt or less.
• When transmission range is "D," voltage should mea-
sure 0.5 volt or less.
Q: Is the measured voltage within the specified range?
YES : Go to Step 9.
NO : Turn the ignition switch to the "LOCK" (OFF) position.
Go to Step 5.
STEP 5. Check intermediate connector E-114 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 6.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC204681AC
CONNECTOR: D-134
D-134 (GR)
61 62
63 64
65 66 67 68 69 70 71 72 73
82
89
81
88
80
79
78
77
87
86
85
76
75
74
84
83
AC204918 BF
D-134 HARNESS CONNECTOR :
HARNESS SIDE
76
85
65
72
71
73
82
75
81
74
63 64
66
70
69
68
67
78
87
79
88 89
80
77
86
62
61
83 84
AC204176
CONNECTOR : E-114
BD
38
28
16
33
22
10
31
19
7
1
18
30
29
17
5
6
21
20
32
8
2
9
25
13
3
24
23
3435
1112
27
26
3637
14
4
15
DIAGNOSTIC TROUBLE CODE PROCEDURES <AUTOMATIC TRANSMISSION>
TSB Revision
DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-126
STEP 6. Check harness for open circuit or short circuit to
ground between transmission range switch connector C-
04 terminal 1 and PCM connector D-134 terminal 66.
Q: Is the harness wire in good condition?
YES : Go to Step 7.
NO : Repair or replace the harness wire.
AC204395
CONNECTOR : C-04
AF
C-04 (B)
4
9
5
10
3
8
2
7
6
1
AC204681AC
CONNECTOR: D-134
D-134 (GR)
61 62
63 64
65 66 67 68 69 70 71 72 73
82
89
81
88
80
79
78
77
87
86
85
76
75
74
84
83
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст