Mitsubishi Montero Sport (2004+). Manual - part 623

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-57

Q: Are the connectors and terminals in good condition?

YES : Go to Step 15.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

PCM

60

46

66

57

45

44

64

55 56

65

62 63

52 53

5051

61

42

59

48

41
47
58

43
49

54

AC202313

C-90 (GR)

AB

CONNECTOR: C-90

C-90 (GR)

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-58

STEP 15. Check the harness for open circuit or damage 
between A/T control solenoid valve connector B-02 
terminal 2 and PCM connector C-90 terminal 57.

Q: Is the harness wire in good condition?

YES : Go to Step 6.
NO :  Repair or replace the harness wire.

AC202314

6

10

4

9

5

3

8

2

7

1

CONNECTOR: B-02

TRANSMISSION
CONTROL CABLE

B-02 (B)

AB

PCM

60

46

66

57

45

44

64

55 56

65

62 63

52 53

5051

61

42

59

48

41
47
58

43
49

54

AC202313

C-90 (GR)

AB

CONNECTOR: C-90

C-90 (GR)

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-59

STEP 16. Check PCM connector C-90 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 6.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E, Harness Connector Inspection 

P.00E-2

.

DTC 16 (P0712): Transmission Fluid Temperature Sensor System (Short Circuit)

.

TRANSMISSION FLUID TEMPERATURE SENSOR 
SYSTEM CIRCUIT
Refer to 

P.23A-42

.

.

CIRCUIT OPERATION
Refer to 

P.23A-42

.

.

DESCRIPTIONS OF MONITOR METHODS
If transmission fluid temperature equals or exceeds 
specified value, PCM judges that transmission fluid 
temperature sensor has a failure.

.

MONITOR EXECUTION
Continuous

.

MONITOR EXECUTION CONDITIONS (Other 
monitor and Sensor)

Other Monitor (There is no temporary DTC stored 

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be 

normal)

• Not applicable

.

PCM

60

46

66

57

45

44

64

55 56

65

62 63

52 53

5051

61

42

59

48

41
47
58

43
49

54

AC202313

C-90 (GR)

AB

CONNECTOR: C-90

C-90 (GR)

AUTOMATIC TRANSMISSION DIAGNOSIS

TSB Revision

AUTOMATIC TRANSMISSION

23A-60

LOGIC FLOW CHARTS (Monitor Sequence)

.

DTC SET CONDITIONS

Check Conditions, Judgement Criteria

• Transmission fluid temperature sensor voltage: 

0.2 volt or less. (1 second)

.

OBD-II DRIVE CYCLE PATTERN
Start the engine, keep the vehicle stopped in P range 
for 5 seconds.

.

TROUBLESHOOTING HINTS (The most likely 
causes for this code to be set are:)

• Malfunction of the transmission fluid temperature 

sensor circuit

• Damaged harness, connector

• Malfunction of the PCM

AC205182

Transmission fluid 
temperature sensor 
voltage > 0.2 V

START

Good

Malfunction

END

Yes

No

Yes

No

Continuous failure 
for 1 sec.