Mitsubishi Montero (2002-2004). Manual — part 956
DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-307
DTC 31: Tansfer 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
DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-308
.
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 transfer-
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
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
DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
23Ac-309
DIAGNOSIS
Required Special Tool:
• MB991502: Scan Tool (MUT-II)
STEP 1. Using scan tool MB991502, check data list item 06:
Transfer Shift Lever Position.
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991502 to data reading mode for 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
ACX01539AD
MB991502
16-PIN
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
DIAGNOSTIC TROUBLE CODE PROCEDURES <TRANSFER>
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DIAGNOSTIC TROUBLE CODE PROCEDURES
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STEP 3. Measure the power supply voltage at transfer shift
lever switch connector E-116.
(1) Disconnect connector E-116 and measure at harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 1 and ground.
• The voltage should measure battery positive voltage.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?
YES : Go to Step 6.
NO : Go to Step 4.
AC204175
CONNECTOR : E-116
AH
6
2
5
4
3
1
AC204918 CI
E-116 HARNESS CONNECTOR :
COMPONENT SIDE
3
1
4
5
6
2
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