Mitsubishi Outlander GS45X. Manual — part 1624
DIAGNOSIS
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CVT
23A-53
STEP 4. Check for open circuit and short to ground in
wiring harness between the primary pulley speed sensor
connector and the TCM connector
Between B-126 primary pulley speed sensor connector (termi-
nal No.2) and C-37 TCM connector (terminal No.37)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the wiring harness.
STEP 5. Check for open circuit in the wiring harness
between the CVT control relay and the primary pulley
speed sensor connector.
Between A-18X CVT control relay (terminal No.3) and B-126
primary pulley speed sensor connector (terminal No.1)
Q: Is the check result normal?
YES : Go to Step 6.
NO : Repair the wiring harness.
STEP 6. Primary pulley speed sensor check
Visually check the tip of the sensor for foreign materials or
damage.
Q: Is the check result normal?
YES : Go to Step 7.
NO : Repair.
STEP 7. Diagnostic trouble code recheck after replacing
the primary pulley speed sensor
Q: Is the check result normal?
YES : The procedure is complete.
NO : Replace TCM.
DIAGNOSIS
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CVT
23A-54
DTC P0720: Malfunction of Secondary Pulley Speed Sensor
RELAY BOX
CVT
CONTROL
RELAY
FUSIBLE
LINK
36
ENGINE
COMPARTMENT
TRANSAXLE
CONTROL MODULE
SECONDARY
PULLEY
SPEED
SENSOR
Secondary pully speed sensor system circuit
DIAGNOSIS
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CVT
23A-55
.
DIAGNOSTIC FUNCTION
TCM determines that the malfunction is present
when the secondary pulley speed sensor value
changes abruptly or when there is a discrepancy
between this sensor and other sensors in sensor
reading.
.
DESCRIPTIONS OF MONITOR METHODS
• The status with the primary pulley speed of 1,000
r/min or more and with the secondary pulley
speed of 150 r/min or less continues for 5 sec-
onds.
• When the vehicle speed computed by CVT has
dropped abruptly from 10 km/h (6.2 mph) or more
to 5 km/h (3.1 mph) or less, and then the comput-
ing value keeps 5 km/h (3.1 mph) or less for 0.5
seconds continuously.
.
MONITOR EXECUTION
• Transmission range: D
• Throttle valve opening : 1/8 or more
.
MONITOR EXECUTION CONDITIONS
(OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• P0705: Malfunction of transmission range switch
• P0712, P0713: Malfunction of the transmission
fluid temperature sensor
• P0715: Malfunction of primary pulley speed sen-
sor
• P0725: Malfunction of engine speed
• P0741: Abnormality in lockup function
• P0746: Abnormality in hydraulic control system
function
• P0841: Abnormality in line pressure sensor func-
tion
• P0868: Secondary pressure drop
• P1706: Malfunction of throttle signal
• P1723: Abnormality in speed sensor system
function
Sensor (The sensor below is determined to be
normal)
• Transmission range switch
• Transmission fluid temperature sensor
• Primary pulley speed sensor
• Accelerator pedal position sensor
.
AC709490
Connectors: A-12, A-13
AC
A-12
A-13
AC709650
Connector: A-18X
AB
AC709493
AC
Connector: B-124
B-124 (B)
AC703253
Connector: C-37
Brake pedal
AC
DIAGNOSIS
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CVT
23A-56
LOGIC FLOW CHARTS (Monitor Sequence)
.
AC802623
START
Yes
Yes
No
Primary pulley speed 1,000 r/min
Secondary pulley speed 150 r/min
Continuous for 5 sec
Continuous for 0.5 sec
No
No
Yes
Good
Malfunction
END
Yes
Yes
Yes
Yes
All secondary parameters
are in the enable condition.
No
No
No
Secondary
pulley speed
Secondary pulley
speed at 10 msec
before
500 r/min
260 r/min
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