Mitsubishi Montero (2004+). Manual — part 968
TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>
TSB Revision
AUTOMATIC TRANSMISSION
23A-447
STEP 11. Using scan tool MB991958, check data list item
23: Stoplight 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 the "ON" position.
(3) Set scan tool MB991958 to data reading mode.
• Item 23: Stoplight Switch − Active Trac 4WD II.
• When the brake pedal is depressed, the display on
scan tool MB991958 should be "ON."
• When the brake pedal is not depressed, the display
on scan tool MB991958 should be "OFF."
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch operating properly?
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 : Replace the PCM.
AC307591 AC
MB991911
MB991824
MB991827
AC307591
DATA LINK
CONNECTOR
TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>
TSB Revision
AUTOMATIC TRANSMISSION
23A-448
DTC 31: Transfer Shift Lever Switch System
ACX02035AB
Transfer Shift Lever Switch System Circuit
AC204170
CONNECTOR : D-01
CD
9 10
8
6 7
31 32
30
29
18 19 20 21
5
4
2
1
3
27
26
24
23
25
12 13 14 15 16 17
28
11
22
33
TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>
TSB Revision
AUTOMATIC TRANSMISSION
23A-449
.
CIRCUIT OPERATION
• Battery positive voltage is applied to the transfer
shift lever switch (terminal 1) when the ignition
switch is turned "ON."
• Battery positive voltage is applied to the trans-
fer-ECU terminal 20, 21, 22, or 23 when the
transfer shift lever is in the "2H," "4H," "4HLc" or
"4LLc." The transfer-ECU judges that the transfer
shift lever is in the "2H," "4H," "4HLc" or "4LLc"
when the battery positive voltage is applied.
.
DTC SET CONDITIONS
In the case that the input signal from the transfer shift
lever switch is open or shorted, the DTC 31 is set as
the open circuit or the short circuit of the transfer shift
lever switch system.
.
TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CODE TO BE SET ARE:)
• Malfunction of the transfer shift lever switch
• Malfunction of the ignition switch
• Damaged harness, connector
• Malfunction of the transfer-ECU
DIAGNOSIS
Required Special Tool:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: MUT-III USB Cable
• MB991911: MUT-III Main Harness B
AC204191
CONNECTORS : D-208, D-212
5 6
2
4
3
1
JUNCTION BLOCK
(FRONT VIEW)
3
10
9
4
11
8
7
1
5
2
6
D-208
D-208
D-212
D-212
AS
AC204194
CONNECTORS : E-11, E-109
E-109
E-109
E-11
E-11
AW
3
10
16
9
7 8
6
1
4
2
5
11
14
1213
15
11 12
25
24
13
26
9
22
7
6
20
19
8
21
10
23
5
4
17
2
1
15
14
3
16
18
AC204175
CONNECTOR : E-116
AH
6
2
5
4
3
1
TRANSFER DIAGNOSIS <ACTIVE TRAC AWD II>
TSB Revision
AUTOMATIC TRANSMISSION
23A-450
STEP 1. Using scan tool MB991958, check data list item 06:
Transfer Shift Lever Position.
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 the "ON" position.
(3) Set scan tool MB991958 to data reading mode.
• Item 06: Transfer Shift Lever Position.
• Display should be the same as the actual transfer
shift lever position.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is switch operating properly?
YES : If 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 : Go to Step 2.
STEP 2. Check the transfer shift lever switch.
Check for resistance between terminals for each transfer shift
lever position.
Q: Is switch operating properly?
YES : Go to Step 3.
NO : Replace the transfer shift lever switch. Refer to
, Transmission Control.
AC307591 AC
MB991911
MB991824
MB991827
AC307591
DATA LINK
CONNECTOR
TRANSFER SHIFT
LEVER POSITION
TERMINAL
NUMBER
SPECIFIED
CONDITION
2H
1
− 3
Less than 2 ohms.
4H
1
− 5
4HLc
1
− 6
4LLc
1
− 2
ACX01331AB
4LLc
4HLc
4H
2H
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