Mitsubishi 380. Manual — part 435
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-280
24
Transmission inhibitor
switch: D
• Ignition switch: ON
• Transmission range: D
Battery positive voltage
• Ignition switch: ON
• Transmission range: Other than above
1 V or less
25
Transmission inhibitor
switch: P
• Ignition switch: ON
• Transmission range: P
Battery positive voltage
• Ignition switch: ON
• Transmission range: Other than above
1 V or less
26
Transmission inhibitor
switch: N
• Ignition switch: ON
• Transmission range: N
Battery positive voltage
• Ignition switch: ON
• Transmission range: Other than above
1 V or less
TERMINAL
NO.
INSPECTION ITEM
INSPECTION REQUIREMENT
NORMAL CONDITION
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-281
10DB125A
COVER
AIR
CLEANER
A/T
CONTROL
UNIT
CONNECTOR: B-19
TERMINAL
NO.
INSPECTION ITEM
INSPECTION REQUIREMENT
NORMAL CONDITION
CONNECTOR
(B-19)
1
Ground
Always
1 V or less
7
Power supply
(Ignition)
Ignition switch: LOCK (OFF)
1 V or less
Ignition switch: ON
Battery positive voltage
8
Sports mode
Shift switch (up)
• Ignition switch: ON
• Selector lever operation: Upshift and
hold the selector lever
Battery positive voltage
• Ignition switch: ON
• Selector lever operation: Other than
above
1 V or less
9
Sports mode
Shift switch (down)
• Ignition switch: ON
• Selector lever operation: Downshift
and hold the selector lever
Battery positive voltage
• Ignition switch: ON
• Selector lever operation: Other than
above
1 V or less
10
Ground
Always
1 V or less
17
Sports select switch
• Ignition switch: ON
• Transmission range: Sport mode
Battery positive voltage
• Ignition switch: ON
• Transmission range: Other than above
1 V or less
18
Ground
Always
1 V or less
20
Flash EPROM
battery
Data Link Connector
-
21
Battery Back-up
Always
Battery positive voltage
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-282
24
Vehicle speed signal
• Measure between connector (B-19)
terminal 24 and 1 with an oscilloscope.
• Engine: 2,000 r/min
• Gear range: 3rd gear
Refer to
Inspection Procedure
Using an Oscilloscope.
27
Ground
Always
1 V or less
29
K-Line
Data Link Connector
-
30
P- Signal [vehicles
with power memory
seat- (driver side)]
-
-
31
N- Signal [vehicles
with power memory
seat- (driver side)]
-
-
TERMINAL
NO.
INSPECTION ITEM
INSPECTION REQUIREMENT
NORMAL CONDITION
AUTOMATIC TRANSMISSION DIAGNOSIS
AUTOMATIC TRANSMISSION
23A-283
10DB133A
COVER
ENGINE
CONTROL
UNIT
AIR
CLEANER
TERMINAL
NO.
INSPECTION ITEM
INSPECTION REQUIREMENT
NORMAL CONDITION
ENGINE-ECU
CONNECTOR (B-21)
18
Stoplight switch
• Ignition switch: ON
• Brake pedal: Depressed
Battery positive voltage
• Ignition switch: ON
• Brake pedal: Released
1 V or less
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