Mitsubishi Outlander (2013+). Manual - part 306

 

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Mitsubishi Outlander (2013+). Manual - part 306

 

 

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-105

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

NO : 

Replace the engine-ECU.

STEP 5. Replace the accelerator pedal assembly

• After replacing the accelerator pedal assembly, 

reconfirm whether the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the engine-ECU.

NO : 

Check end.

Code No. P2127: Accelerator Pedal Position Sensor (sub) Circuit Low Input

OPERATION

• A power voltage of 5 V is applied to the accelera-

tor pedal position sensor connector terminal from 
the engine-ECU connector terminal 5VV.

• The power voltage is earthed to the engine-ECU 

connector terminal EV from the accelerator pedal 
position sensor connector terminal.

• The sensor signal is inputted to the engine-ECU 

connector terminal APSS from the accelerator 
pedal position sensor output terminal.

FUNCTION

• The accelerator pedal position sensor (sub) out-

puts voltage which corresponds to the accelera-
tor pedal depression.

• The engine-ECU checks whether the voltage is 

within a specified range.

TROUBLE JUDGMENT

Check Condition

• Ignition switch is "ON" position.

Judgement Criterion

• Accelerator pedal position sensor (sub) output 

voltage is less than 0.2 V.

FAIL-SAFE AND BACKUP FUNCTION

• Throttle opening degree is restricted.

• Throttle opening degree position is in default 

position if accelerator pedal position sensor 
(main) fails.

PROBABLE CAUSES

• Failed accelerator pedal position sensor

• Open/short circuit or harness damage in acceler-

ator pedal position sensor circuit or loose con-
nector contact

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

• Data list reference table (Refer to 

P.13A-155

).

a. Item 12: Accelerator pedal position sensor 

(sub)

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

NO : 

Go to Step 2.

STEP 2. Perform voltage measurement at 
accelerator pedal position sensor connector.

• Disconnect connector, and measure at harness 

side.

• Ignition switch: "ON" 

• Voltage between terminal engine-ECU 5VV and 

body earth.

OK: 4.9 

 5.1 V

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 3.

STEP 3. Check harness between accelerator 
pedal position sensor connector terminal and 
engine-ECU connector terminal 5VV.

• Check power supply line for open/short circuit.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair or replace the connector, or repair 
the damaged harness wire.

STEP 4. M.U.T.-III data list

• Data list reference table (Refer to 

P.13A-155

).

a. Item 12: Accelerator pedal position sensor 

(sub)

Q: Is the check result normal?

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-106

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

NO : 

Replace the engine-ECU.

STEP 5. Check harness between accelerator 
pedal position sensor connector terminal and 
engine-ECU connector terminal 5VV.

• Check power supply line for damage.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair or replace the connector, or repair 
the damaged harness wire.

STEP 6. Check harness between accelerator 
pedal position sensor connector terminal and 
engine-ECU connector terminal APSS.

• Check output line for open/short circuit and dam-

age.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair or replace the connector, or repair 
the damaged harness wire.

STEP 7. Replace the accelerator pedal assembly

• After replacing the accelerator pedal assembly, 

reconfirm whether the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the engine-ECU.

NO : 

Check end.

Code No. P2128: Accelerator Pedal Position Sensor (sub) Circuit High Input

OPERATION

• A power voltage of 5 V is applied to the accelera-

tor pedal position sensor connector terminal from 
the engine-ECU connector terminal 5VV.

• The power voltage is earthed to the engine-ECU 

connector terminal EV from the accelerator pedal 
position sensor connector terminal.

• The sensor signal is inputted to the engine-ECU 

connector terminal APSS from the accelerator 
pedal position sensor output terminal.

FUNCTION

• The accelerator pedal position sensor (sub) out-

puts voltage which corresponds to the accelera-
tor pedal depression.

• The engine-ECU checks whether the voltage is 

within a specified range.

TROUBLE JUDGMENT

Check Condition

• Ignition switch is "ON" position.

Judgement Criterion

• Accelerator pedal position sensor (sub) output 

voltage is more than 2.5 V.

FAIL-SAFE AND BACKUP FUNCTION

• Throttle opening degree is restricted.

• Throttle opening degree position is in default 

position if accelerator pedal position sensor 
(main) fails.

PROBABLE CAUSES

• Failed accelerator pedal position sensor

• Open circuit or harness damage in accelerator 

pedal position sensor circuit or loose connector 
contact

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

• Data list reference table (Refer to 

P.13A-155

).

a. Item 12: Accelerator pedal position sensor 

(sub)

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

NO : 

Go to Step 2.

STEP 2. Perform resistance measurement at 
accelerator pedal position sensor connector.

• Disconnect connector, and measure at harness 

side.

• Resistance between terminal engine-ECU EV 

line and body earth.

OK: Continuity (2 

 or less)

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 3.

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-107

STEP 3. Check harness between accelerator 
pedal position sensor connector terminal and 
engine-ECU connector terminal EV.

• Check earthing line for open circuit and damage.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair or replace the connector, or repair 
the damaged harness wire.

STEP 4. M.U.T.-III data list

• Data list reference table (Refer to 

P.13A-155

).

a. Item 12: Accelerator pedal position sensor 

(sub)

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

NO : 

Replace the engine-ECU.

STEP 5. Replace the accelerator pedal assembly

• After replacing the accelerator pedal assembly, 

reconfirm whether the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the engine-ECU.

NO : 

Check end.

Code No. P2135: Throttle Position Sensor (main and sub) Range/Performance Problem

OPERATION

• Check code No. P0122: throttle position sensor 

(main) circuit low input (Refer to 

P.13A-45

).

• Check code No. P0222: throttle position sensor 

(sub) circuit low input (Refer to 

P.13A-60

).

FUNCTION

• Engine-ECU checks the throttle position sensor 

output signal characteristics for abnormal condi-
tions.

TROUBLE JUDGMENT

Check Conditions

• Ignition switch is "ON" position.

• Throttle position sensor (main) output voltage is 

more than 0.2 V and is less than 4.8 V.

• Throttle position sensor (sub) output voltage is 

more than 0.2 V and is less than 4.8 V.

Judgement Criterion

• The sum of the output voltage of the throttle posi-

tion sensors (main and sub) is less than 4.5 V, or 
more than 5.5 V.

Check Conditions

• Throttle position sensor (main) output voltage is 

more than 0.2 V and is less than 4.8 V.

• Throttle position sensor (sub) output voltage is 

more than 0.2 V and is less than 4.8 V.

• Ignition switch is "ON" position.

• Throttle position sensor (main and sub) output 

voltage is less than the target throttle position 
sensor (main) voltage by 0.9 V or less.

Judgement Criterion

• Voltage obtained with the formula given below is 

more than 0.3 V: throttle position sensor (main) 
voltage 

− throttle position sensor (sub) voltage

NOTE: The throttle position sensor voltage used for 
the judgment is converted into the throttle position 
sensor voltage for the internal processing by the 
engine-ECU.

FAIL-SAFE AND BACKUP FUNCTION

• Throttle opening degree position is in default 

position.

PROBABLE CAUSES

• Failed throttle position sensor

• Harness damage in throttle position sensor circuit 

or loose connector contact

DIAGNOSIS PROCEDURE

STEP 1. Perform resistance measurement at 
electronic-controlled throttle valve connector.

• Disconnect connector, and measure at harness 

side.

• Resistance between terminal engine-ECU TPSE 

line and body earth.

OK: Continuity (2 

 or less)

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Go to Step 2.

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-108

STEP 2. Check harness between 
electronic-controlled throttle valve connector 
terminal and engine-ECU connector terminal 
TPSE.

• Check earthing line for damage.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair or replace the connector, repair the 
damaged harness wire.

STEP 3. M.U.T.-III diagnosis code

• Reconfirmation of diagnosis code.

Q: Is diagnosis code set?

YES : 

Replace the engine-ECU.

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

STEP 4. Check harness between 
electronic-controlled throttle valve connector 
terminal and engine-ECU connector terminal 
TPS5.

• Check power supply line for damage.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair or replace the connector repair the 
damaged harness wire.

STEP 5. Check harness between 
electronic-controlled throttle valve connector 
terminal and engine-ECU connector terminal 
TPSM.

• Check output line for damage.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair or replace the connector repair the 
damaged harness wire.

STEP 6. Check harness between 
electronic-controlled throttle valve connector 
terminal and engine-ECU connector terminal 
TPSS.

• Check output line for damage.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair or replace the connector repair the 
damaged harness wire.

STEP 7. Replace throttle body assembly.

• After replacing the throttle body assembly, recon-

firm whether the diagnosis code is set.

Q: Is the diagnosis code set?

YES : 

Replace the engine-ECU.

NO : 

Check end.

Code No. P2138: Accelerator Pedal Position Sensor (main and sub) Range/Performance Problem

OPERATION

• Check code No. P2122: accelerator pedal posi-

tion sensor (main) circuit low input (Refer to 

P.13A-102

).

• Check code No. P2127: accelerator pedal posi-

tion sensor (sub) circuit low input (Refer to 

P.13A-105

).

FUNCTION

• Engine-ECU checks the accelerator pedal posi-

tion sensor output signal characteristics for 
abnormal conditions.

TROUBLE JUDGMENT

Check Conditions

• Ignition switch is "ON" position.

• Change of accelerator pedal position sensor 

(sub) output voltage per 25 milliseconds is less 
than 0.06 V.

Judgement Criterion

• Voltage obtained with the formula given below is 

more than 0.4 V: accelerator pedal position sen-
sor (sub) voltage 

− accelerator pedal position 

sensor (main) voltage

NOTE: The accelerator pedal position sensor volt-
age used for the judgment is converted into the 
accelerator pedal position sensor voltage for the 
internal processing by the engine-ECU.

Check Conditions

• Ignition switch is "ON" position.

• Change of accelerator pedal position sensor 

(main) output voltage per 25 milliseconds is less 
than 0.06 V.

 

 

 

 

 

 

 

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