Mitsubishi Outlander (2003+). Manual - part 183

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-27

STEP 8. Check the harness between A/T control 
solenoid valve assembly connector B-34 terminal 
No.1 and engine-A/T-ECU connector C-142 
terminal No.119.

Check the output line for short-circuited or open 
circuit.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the wiring harness.

AC309511

B-34 (GR)

Harness side

AB

Connector: B-34

AC309479

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-142 (GR)

C-142 (GR)

104

93

95

98

92

94

96

97

99

100

91

103
110

111

101

108

109

105

107

106

102

115

117

112

118

116

114 113

120 119

AF

Connector: C-142 <LHD>

Connector: C-142 <RHD>

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-28

Code No.22: Input shaft speed sensor system

ENGINE-
A/T-ECU

INPUT SHAFT
SPEED SENSOR 

IGNITION
SWITCH (IG1)

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet   

AC309564AC

Input shaft speed sensor system circuit

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-29

OPERATION
The input shaft speed sensor detects the speed of 
the underdrive clutch retainer, and sends the 
information to the engine-A/T-ECU as a pulse signal.

diagnosis code set conditions
The diagnosis code No. 22 will be set if the input 
shaft speed sensor does not send a pulse signal for 
one second or more while the 3rd gears are engaged 
and the vehicle speed is 40 km/h or more (the output 
shaft speed sensor speed is 1000 r/min or more).
If the code No. 22 is set four times, the transmission 
will be fixed in 3rd gear as a fail-safe measure. 
However, the transmission can be downshifted to 
2nd gear by operating the selector lever. 

Possible causes

•

Malfunction of input shaft speed sensor

•

Malfunction of underdrive clutch retainer

•

Damaged harness wires and connectors

•

Malfunction of the engine-A/T-ECU

DIAGNOSIS

STEP 1. MUT-II/III data list

Item 22: Input shaft speed sensor (Refer to data list 
reference table 

P.23A-133

). 

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

−

 How to Cope with Intermittent 

Malfunction 

P.00-6

).

NO : 

Go to Step 2.

STEP 2. Connector check: B-36 input shaft speed 
sensor connector

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the defective connector.

STEP 3. Measure the resistance at input shaft 
speed sensor connector B-36.

Disconnect the connector, and measure the 
resistance between terminal 1 and earth at the wiring 
harness side.

OK: 2 

Ω

 or less

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Go to Step 4.

STEP 4. Measure the voltage at engine-A/T-ECU 
connector C-141.
(1) Connect input shaft speed sensor connector 

B-36.

(2) Turn the ignition switch to the ON position.

(3) Measure the voltage between engine-A/T-ECU 

connector C-141 terminal No.88 and earth.

OK: 0.5 V or less

Q: Is the check result normal?

AC309512 AB

B-36 (B)

Connector: B-36

Harness side

AC309512 AB

B-36 (B)

Connector: B-36

Harness side

AC309479 AE

Connector: C-141 <LHD>

Connector: C-141 <RHD>

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-141 (GR)

C-141 (GR)

TROUBLESHOOTING <A/T>

AUTOMATIC TRANSMISSION (FF)

23A-30

YES : 

Go to Step 7.

NO : 

Go to Step 5.

STEP 5. Connector check: C-141 engine-A/T-ECU 
connector

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the defective connector.

STEP 6. MUT-II/III data list

Item 22: Input shaft speed sensor (Refer to data list 
reference table 

P.23A-133

). 

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

−

 How to Cope with Intermittent 

Malfunction 

P.00-6

).

NO : 

Replace the engine-A/T-ECU.

STEP 7. Connector check: C-141 engine-A/T-ECU 
connector, C-16 J/C (1)

Check for the contact with terminals.

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Repair the defective connector.

AC309479 AE

Connector: C-141 <LHD>

Connector: C-141 <RHD>

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-141 (GR)

C-141 (GR)

AC309479 AE

Connector: C-141 <LHD>

Connector: C-141 <RHD>

Engine-A/T-ECU

Harness side

Engine-A/T-ECU

C-141 (GR)

C-141 (GR)

AC308735

BH

C-16 (L)

Connector: C-16
<RHD>

AC308718

BA

C-16 (L)

Connector: C-16
<LHD>