Mitsubishi Montero (2002-2004). Manual — part 985
SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION>
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SYMPTOM PROCEDURES
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DIAGNOSIS
Required Special Tool:
• MB991502: Scan Tool (MUT-II)
STEP 1. Using scan tool MB991502, check data list item 67:
Select Switch, item 68: Shift Switch (Up), item 69: Shift
Switch (Down).
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 following
items.
a. item 67: Select Switch
b. item 68: Shift Switch (Up)
c. item 69: Shift Switch (Down)
• The switches above are displayed, depending on the
selector lever condition as shown in the table.
(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 : If item 68 and item 69 both are NG: Go to Step 2. If
only item 67 is NG: Go to Step 5. If only item 68 is
NG: Go to Step 15. If only item 69 is NG: Go to Step
20.
STEP 2. Check the shift switch assembly.
Refer to
, Transmission Control.
Q: Is the switch operating properly?
YES : Go to Step 3.
NO : Replace the shift switch assembly. Refer to
, Transmission Control.
SELECTOR
LEVER
OPERATION
DATA LIST ITEM
67
68
69
D range
OFF
OFF
OFF
Sport mode
ON
OFF
OFF
Upshift and hold
the selector lever
ON
ON
OFF
Downshift and
hold the selector
lever
ON
OFF
ON
ACX01539AD
MB991502
16-PIN
SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION>
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SYMPTOM PROCEDURES
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STEP 3. Check shift switch assembly connector E-115 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
STEP 4. Check harness for open circuit between
intermediate connector E-11 terminal 14 and shift switch
assembly connector E-115 terminal 3.
Q: Is the harness wire in good condition?
YES : Go to Step 25.
NO : Repair or replace the harness wire.
AC204176
CONNECTOR : E-115
BE
8
3
4 5
1
2
6 7
AC204194
CONNECTORS : E-11, E-115
E-11
E-11
BJ
E-115
E-115
3
10
16
9
7 8
6
1
4
2
5
11
14
1213
15
8
3
4 5
1
2
6 7
SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION>
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SYMPTOM PROCEDURES
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STEP 5. Using scan tool MB991502, check data list item 61:
Transmission Range Switch.
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 61,
Transmission Range Switch.
• Scan tool MB991502 should display "D" when the trans-
mission range is "D" range.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch operating properly?
YES : Go to Step 6.
NO : Refer to
,
, DTCs 27, 28:
Transmission range switch system.
STEP 6. Check the shift switch assembly.
Refer to
, Transmission Control.
Q: Is the switch operating properly?
YES : Go to Step 7.
NO : Replace the shift switch assembly. Refer to
, Transmission Control.
STEP 7. Check shift switch assembly connector E-115 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 8.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
ACX01539AD
MB991502
16-PIN
AC204176
CONNECTOR : E-115
BE
8
3
4 5
1
2
6 7
SYMPTOM PROCEDURES <AUTOMATIC TRANSMISSION>
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SYMPTOM PROCEDURES
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STEP 8. Measure the power supply voltage at shift switch
assembly connector E-115.
(1) Disconnect connector E-115 and measure at the harness
side.
(2) Turn the ignition switch to the "ON" position.
(3) Transmission range should be "D" range.
(4) Measure the voltage between terminal 1 and ground.
• The voltage should measure battery positive voltage.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?
YES : Go to Step 11.
NO : Go to Step 9.
STEP 9. Check transmission range switch connector C-04
for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES : Go to Step 10.
NO : Repair or replace the damaged components. Refer to
GROUP 00E, Harness Connector Inspection
AC204176
CONNECTOR : E-115
BE
8
3
4 5
1
2
6 7
AC204918
8
3
7
2
5
6
4
1
AC204918 CH
E-115 HARNESS CONNECTOR :
COMPONENT SIDE
AC204395
CONNECTOR : C-04
AF
C-04 (B)
4
9
5
10
3
8
2
7
6
1
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