Mitsubishi Outlander XL. Manual - part 481

LOGIC FLOW CHARTS (Monitor Sequence)

Good

V

PG-B

 : Calculated Vehicle speed

          by output shaft speed sensor

START

V

PG-B

 > 40 km/h

END

Off

Yes

Yes

Yes

On

No

No

No

No

Engine speed > 1600 r/min

N

IPG-A

 < 600 r/min

Malfunction

ZC604066

N

IPG-A

 : Input speed (Input  

             shaft speed sensor)

Idle switch

Yes

Continuous failure  
       for 5 secs.

0000

DTC SET CONDITIONS

Check Conditions

｠

Idle switch: OFF.

｠

Vehicle speed: more than 40 km/h (25 mph).

｠

Engine speed: more than 1,600 r/min.

Judgement Criteria

｠

Input shaft speed sensor signal: less than 600 r/min.
(5 seconds)

OBD-II DRIVE CYCLE PATTERN
Start the engine, shift to 3rd gear or higher, and drive
at more than 40 km/h (25 mph) for 10 seconds.

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CODE TO BE SET ARE:)

｠

Malfunction of the Input shaft speed sensor system
circuit

AUTOMATIC TRANSAXLE MECHANICAL

23A-39

AUTOMATIC TRANSAXLE DIAGNOSIS

｠

Damaged harness or connector

｠

Malfunction of the Input shaft speed sensor

｠

Malfunction of the TCM

｠

Malfunction of the input shaft speed sensor rotor (A/
T assembly)

 

DIAGNOSIS

STEP 1. Check the TCM terminal voltage and frequency.
[C-37 TCM connector (vehicle side, connected)]
Check that the voltage between C-37 terminal No. 49 and C-38
terminal No. 13 or C-38 terminal No. 26 is 0 V, and then check
the frequency of C-37 terminal No. 38.

｠

At D range, and the engine speed is 700 r/min: Approx. 353
Hz

Q:Is the check result normal?

YES:

 Go to Step 8.

NO:

 Go to Step 2.

STEP 2. Check the power supply and sensor ground.
[B-109  input  shaft  speed  sensor  connector  (vehicle  side,
disconnected)]

｠

With the ignition switch ON: Terminal No. 3 to terminal No. 1
→

 Battery positive voltage

Q:Is the check result normal?

YES:

 Go to Step 3.

NO:

 Go to Step 4.

STEP 3. Check the wiring harness between the input shaft
speed sensor and TCM.
Check for continuity between B-109 input shaft speed sensor
connector terminals and C-37 TCM terminals.

｠

Between  B-109  terminal  No.  2  and  C-37  terminal  No.  38:
Continuity exists.

When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.

Q:Is the check result normal?

YES:

 Replace the input shaft speed sensor with the one

of the same transaxle of the same model. Then go to Step
5.

NO:

 Repair or replace the failure section, and then go

to Step 8.

STEP 4. Check the path between the ignition switch and the
input shaft speed sensor.

｠

Check the wiring harness for an open/short circuit between the
ignition switch and B-109 input shaft speed sensor connector
terminal No. 3.

｠

Check for a blown fuse.

Q:Is the check result normal?

YES:

 Go to Step 6.

NO:

 Repair or replace the failure section.

23A-40

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS

STEP 5. After replacing the input shaft speed sensor, drive
the vehicle for a while, and then check the DTC again.

Q:Is the check result normal?

YES:

 Replace the input shaft speed sensor.

NO:

 Replace the TCM.

STEP 6. Check the wiring harness between the input shaft
speed sensor and TCM.
Check for continuity between B-109 input shaft speed sensor
terminals and C-37 TCM terminals.

｠

Between  B-109  terminal  No.  1  and  C-37  terminal  No.  49:
Continuity exists.

When the continuity check result is OK, check that the wiring
harness is not shorted to the body and other wiring harness.

Q:Is the check result normal?

YES:

 Go to Step 7.

NO:

 Repair or replace the failure section.

STEP 7. Check the TCM connector pin terminal and the
connection status.

Q:Is there a failure point?

YES:

 Repair or replace the failure section.

NO:

 Replace the TCM.

STEP 8. Drive the vehicle for a while.
Check that the normal code is displayed.

Q:Is the check result normal?

YES:

 The procedure is complete.

NO:

 Replace the TCM.

AUTOMATIC TRANSAXLE MECHANICAL

23A-41

AUTOMATIC TRANSAXLE DIAGNOSIS

DTC P0720: Output Shaft Speed Sensor System

M12301000398USA0000010000

A/T
CONTROL
RELAY

ENGINE
COMPARTMENT

RELAY
BOX

FUSIBLE
LINK

36

OUTPUT SHAFT
SPEED
SENSOR

TRANSMISSION
CONTROL
MODULE

ZC6023790000

Output shaft speed sensor system circuit

23A-42

AUTOMATIC TRANSAXLE MECHANICAL

AUTOMATIC TRANSAXLE DIAGNOSIS