Mitsubishi Outlander GS45X. Manual — part 1688
AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>
TSB Revision
AUTOMATIC TRANSAXLE
23C-57
DTC P0729, P0732,P0733, P0734, P0735: 6th, 2nd, 3rd, 4th, 5th Gear Ratio
LOGIC FLOW CHARTS (Monitor Sequence)
.
DESCRIPTIONS OF MONITOR METHODS
<DTC P0729>
• After 6th gear is achieved for 2 seconds, the
engine runup
*1
is detected for 250 milliseconds.
*1
: The actual gear ratio deviates from the target
gear ratio to the high engine (turbine) speed.
.
MONITOR EXECUTION <DTC P0729>
• 6th gear driving
.
Good
END
No
No
No
No
Actual gear ratio
expected gear ratio
Malfunction
Timer start
Shift stage
commanded by A/T
No
AC802666
Shift changing is finished
Timer 2 secs.
Continuous failure
for 250 msecs.
Yes
Yes
Yes
Yes
Yes
START
AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>
TSB Revision
AUTOMATIC TRANSAXLE
23C-58
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR) <DTC
P0729>
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P0846: Malfunction of the 2-6 brake pressure
switch system
• P0876: Malfunction of the High clutch pressure
switch system
• P0988: Malfunction of the Low-reverse brake
pressure switch system
Sensor (The sensor below is determined to be
normal)
• Input shaft speed sensor
• Output shaft speed sensor
• Transmission range switch
• Lock-up and low-reverse brake linear solenoid
• Low clutch linear solenoid
• 2-6 brake linear solenoid
• 3-5 reverse clutch linear solenoid
• High clutch linear solenoid
• Low clutch shift solenoid
• Low-reverse brake shift solenoid
• Engine revolution signal
• CAN communication
.
DTC SET CONDITIONS <DTC P0729>
Check Conditions
• Shift stage: 6th gear.
• Time after shift changing finish: 2 seconds or
more.
Judgement Criteria
• Gear ratio: 0.753 or more. (0.25 second)
.
OBD-II DRIVE CYCLE PATTERN <DTC
P0729>
6th gear driving for 5 seconds or more
.
DESCRIPTIONS OF MONITOR METHODS
<DTC P0732>
• After 2nd gear is achieved for 2 seconds, the
engine runup
*1
is detected for 250 milliseconds.
*1
: The actual gear ratio deviates from the target
gear ratio to the high engine (turbine) speed.
.
MONITOR EXECUTION <DTC P0732>
• 2nd gear driving
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR) <DTC
P0732>
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P0846: Malfunction of the 2-6 brake pressure
switch system
• P0876: Malfunction of the High clutch pressure
switch system
• P0988: Malfunction of the Low-reverse brake
pressure switch system
Sensor (The sensor below is determined to be
normal)
• Input shaft speed sensor
• Output shaft speed sensor
• Transmission range switch
• Lock-up and low-reverse brake linear solenoid
• Low clutch linear solenoid
• 2-6 brake linear solenoid
• 3-5 reverse clutch linear solenoid
• High clutch linear solenoid
• Low clutch shift solenoid
• Low-reverse brake shift solenoid
• Engine revolution signal
• CAN communication
.
DTC SET CONDITIONS <DTC P0732>
Check Conditions
• Shift stage: 2nd gear.
• Time after shift changing finish: 2 seconds or
more.
Judgement Criteria
• Gear ratio: 3.225 or more. (0.25 second)
.
OBD-II DRIVE CYCLE PATTERN <DTC
P0732>
2nd gear driving for 5 seconds or more
.
AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>
TSB Revision
AUTOMATIC TRANSAXLE
23C-59
DESCRIPTIONS OF MONITOR METHODS
<DTC P0733>
• After 3rd gear is achieved for 2 seconds, the
engine runup
*1
is detected for 250 milliseconds.
*1
: The actual gear ratio deviates from the target
gear ratio to the high engine (turbine) speed.
.
MONITOR EXECUTION <DTC P0733>
• 3rd gear driving
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR) <DTC
P0733>
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P0846: Malfunction of the 2-6 brake pressure
switch system
• P0876: Malfunction of the High clutch pressure
switch system
• P0988: Malfunction of the Low-reverse brake
pressure switch system
Sensor (The sensor below is determined to be
normal)
• Input shaft speed sensor
• Output shaft speed sensor
• Transmission range switch
• Lock-up and low-reverse brake linear solenoid
• Low clutch linear solenoid
• 2-6 brake linear solenoid
• 3-5 reverse clutch linear solenoid
• High clutch linear solenoid
• Low clutch shift solenoid
• Low-reverse brake shift solenoid
• Engine revolution signal
• CAN communication
.
DTC SET CONDITIONS <DTC P0733>
Check Conditions
• Shift stage: 3rd gear.
• Time after shift changing finish: 2 seconds or
more.
Judgement Criteria
• Gear ratio: 1.947 or more. (0.25 second)
.
OBD-II DRIVE CYCLE PATTERN <DTC
P0733>
3rd gear driving for 5 seconds or more
.
DESCRIPTIONS OF MONITOR METHODS
<DTC P0734>
• After 4th gear is achieved for 2 seconds, the
engine runup
*1
is detected for 250 milliseconds.
*1
: The actual gear ratio deviates from the target
gear ratio to the high engine (turbine) speed.
.
MONITOR EXECUTION <DTC P0734>
• 4th gear driving
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR) <DTC
P0734>
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P0846: Malfunction of the 2-6 brake pressure
switch system
• P0876: Malfunction of the High clutch pressure
switch system
• P0988: Malfunction of the Low-reverse brake
pressure switch system
Sensor (The sensor below is determined to be
normal)
• Input shaft speed sensor
• Output shaft speed sensor
• Transmission range switch
• Lock-up and low-reverse brake linear solenoid
• Low clutch linear solenoid
• 2-6 brake linear solenoid
• 3-5 reverse clutch linear solenoid
• High clutch linear solenoid
• Low clutch shift solenoid
• Low-reverse brake shift solenoid
• Engine revolution signal
• CAN communication
.
DTC SET CONDITIONS <DTC P0734>
Check Conditions
• Shift stage: 4th gear.
• Time after shift changing finish: 2 seconds or
more.
Judgement Criteria
• Gear ratio: 1.340 or more. (0.25 second)
.
AUTOMATIC TRANSAXLE DIAGNOSIS <A/T>
TSB Revision
AUTOMATIC TRANSAXLE
23C-60
OBD-II DRIVE CYCLE PATTERN <DTC
P0734>
4th gear driving for 5 seconds or more
.
DESCRIPTIONS OF MONITOR METHODS
<DTC P0735>
• After 5th gear is achieved for 2 seconds, the
engine runup
*1
is detected for 250 milliseconds.
*1
: The actual gear ratio deviates from the target
gear ratio to the high engine (turbine) speed.
.
MONITOR EXECUTION <DTC P0735>
• 5th gear driving
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR) <DTC
P0735>
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P0846: Malfunction of the 2-6 brake pressure
switch system
• P0876: Malfunction of the High clutch pressure
switch system
• P0988: Malfunction of the Low-reverse brake
pressure switch system
Sensor (The sensor below is determined to be
normal)
• Input shaft speed sensor
• Output shaft speed sensor
• Transmission range switch
• Lock-up and low-reverse brake linear solenoid
• Low clutch linear solenoid
• 2-6 brake linear solenoid
• 3-5 reverse clutch linear solenoid
• High clutch linear solenoid
• Low clutch shift solenoid
• Low-reverse brake shift solenoid
• Engine revolution signal
• CAN communication
.
DTC SET CONDITIONS <DTC P0735>
Check Conditions
• Shift stage: 5th gear.
• Time after shift changing finish: 2 seconds or
more.
Judgement Criteria
• Gear ratio: 0.984 or more. (0.25 second)
.
OBD-II DRIVE CYCLE PATTERN <DTC
P0735>
5th gear driving for 5 seconds or more
.
TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THIS CODE TO BE
SET ARE:)
• Transaxle assembly powertrain parts failure
• Malfunction of the P0715: input shaft speed sen-
sor system
• Malfunction of the P0720: output shaft speed
sensor system
• Malfunction of the P0748: line pressure linear
solenoid valve system circuit
• Malfunction of the P0753: low clutch linear sole-
noid valve system circuit
• Malfunction of the P0758: 2-6 brake linear sole-
noid valve system circuit
• Malfunction of the P0763: 3-5 reverse clutch lin-
ear solenoid valve system circuit
• Malfunction of the P0768: high clutch linear sole-
noid valve system circuit
• Malfunction of the P1753: low clutch shift sole-
noid valve system circuit
• Malfunction of the low clutch, 2-6 brake, 3-5
reverse clutch, high clutch
• Malfunction of the valve body assembly
DIAGNOSIS
STEP 1. Check the DTC.
Check that P0715 (input shaft speed sensor) and P0720 (out-
put shaft speed sensor) are set.
Q: Is the DTC set?
YES : Check and repair the relevant DTC system.
NO : Go to Step 2.
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