Mitsubishi Outlander GS45X. Manual - part 875

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-433

STEP 5. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to 

Diagnostic Function 

− OBD-II Drive Cycle − Pattern 22 

P.13B-11

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0327 set?

YES : Retry the troubleshooting.
NO :  The inspection is complete.

DTC P0328: Knock Sensor Circuit High (Bank 1)

AK800938

1

2

3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

1

2

AB

B-06

(MU802601)

KNOCK SENSOR 1 CIRCUIT

KNOCK SENSOR 1 

B-10

28

29

2

1

ENGINE
CONTROL
MODULE

WHITE

BLA

CK

5 V

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-434

.

CIRCUIT OPERATION

• The knock sensor (terminal No. 1) sends a signal 

voltage to the ECM (terminal No. 28).

• The ground terminal (terminal No. 2) is grounded 

with ECM (terminal No. 29).

.

TECHNICAL DESCRIPTION

• The knock sensor converts the vibration of the 

cylinder block into a voltage and outputs it.

• The ECM checks whether the voltage is within a 

specified range.

.

DESCRIPTIONS OF MONITOR METHODS

Knock sensor output voltage is out of specified 

range.

.

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

.

AK700401AB

ECM

B-10 (GR)

Connector: B-10

AK900144

AD

B-06 (B)

Knock sensor 1

Connector: B-06

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-435

DTC SET CONDITIONS

Logic Flow Chart

.

Check Condition

• 2 seconds or more have passed since the engine 

starting sequence was completed.

Judgement Criterion

• Knock sensor 1 output voltage has continued to 

be higher than 2.3 volts for 2 seconds.

.

FAIL-SAFE AND BACKUP FUNCTION

• Fix the ignition timing with an allowance against 

knock.

.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function 

− OBD-II Drive Cycle − 

Pattern 22 

P.13B-11

.

.

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

• Shorted knock sensor 1 circuit or connector dam-

age.

• ECM failed.

End

Malfunction

No

No

No

Output voltage

< 0.5V

Output voltage

> 2.3V

Good

AK704271

No

Start

Yes

Yes

Yes

Yes

Continuous
failure for 2secs

Monitoring
conditions

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-436

DIAGNOSIS

STEP 1. Check harness connector B-06 at the knock 
sensor 1 and harness connector B-10 at ECM for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 2.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 3.

STEP 2. Check for short circuit to power supply between 
knock sensor 1 connector B-06 (terminal No. 1) and ECM 
connector B-10 (terminal No. 28).
Q: Is the harness wire in good condition?

YES :  Replace the ECM. When the ECM is replaced, 

register the ID code. Refer to GROUP 42B, Diagnosis 
− ID Code Registration Judgment Table <Vehicles 

with KOS> 

P.42B-15

 or GROUP 42C, Diagnosis 

− ID 

Codes Registration Judgment Table <Vehicles with 
WCM> 

P.42C-10

. Then go to Step 3.

NO :  Repair it. Then go to Step 3.

STEP 3. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to 

Diagnostic Function 

− OBD-II Drive Cycle − Pattern 22 

P.13B-11

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0328 set?

YES : Retry the troubleshooting.
NO :  The inspection is complete.