Mitsubishi Outlander XL. Manual - part 292

ZK603600

B-101(GR)

Connector: B-101

AA00

ZK603589

MFI relay

A-33X

Connector: A-33X

AA00

ZK603652 AA00

B-21 (B)

Connector: B-21

Intermediate
connector

ZK603607

A-24X

Connector: A-24X

AA00

Injector relay

ZK603591

ECM

B-10 (GR)

Connector: B-10

AA00

ZK603608 AA00

ETACS-ECU

C-317

Connectors: C-304, C-317

C-304

ZK603650AA00

A-13

Connector: A-13

 

CIRCUIT OPERATION

｠

The injector power is supplied from the injector relay
(terminal No. 3).

｠

The ECM controls the injector by turning the power
transistor in the ECM "ON" and "OFF".

TECHNICAL DESCRIPTION

｠

The  amount  of  fuel  injected  by  the  injector  is
controlled by the amount of continuity time the coil
is grounded by the ECM.

DESCRIPTIONS OF MONITOR METHODS
The ECM detects open circuit and short malfunction.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-363

DIAGNOSTIC TROUBLE CODE PROCEDURES

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

DTC SET CONDITIONS <Circuit continuity - open circuit and shorted low>

Logic Flow Chart

Good

Malfunction

Vinj = 3V

Start

Continuous

failure for 2secs

End

No

No

No

Yes

Yes

No

ZK603735AA00

Monitoring

condition

Check Condition

｠

Engine is running.

Judgement Criterion

｠

The  supply  voltage  is  3  volts  or  less  without  the
injector driving.

13Ab-364

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC SET CONDITIONS <Circuit continuity - shorted high>

Logic Flow Chart

Start

End

No

Yes

Yes

Yes

No

No

Malfunction

Good

Continuous

failure for 2secs

Current >= 4A

Monitoring

conditions

ZK603736 AA00

Check Condition

｠

Engine is running.

Judgement Criterion

｠

The coil current is 4 ampere or more with the injector
driving.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function - OBD-II Drive Cycle -
Pattern 24 P.13Ab-8.

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

｠

No. 5 cylinder injector failed.

｠

Connector damage.

｠

Harness damage.

｠

ECM failed.

 

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: V.C.I.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-365

DIAGNOSTIC TROUBLE CODE PROCEDURES

｠

MB991827: USB Cable

｠

MB991910: Main Harness A

｠

MB991658: Test Harness

｠

MB992110: Power Plant ECU Check Harness

STEP 1. Using scan tool MB991958, check actuator test item
5: No. 5 Injector.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition  switch  to  the  "LOCK"  (OFF)  position  before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958 to the data link connector.

(2)

Start the engine and run at idle.

(3)

Set scan tool MB991958 to the actuator testing mode for item
5, No. 5 injector.

(4)

Warm up the engine to normal operating temperature: 80°C
to 95°C (176°F to 203°F).

｠

The idle should become slightly rougher.

(5)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the actuator operating properly?

YES:

 It can be assumed that this malfunction is

intermittent. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points - How to Cope
with Intermittent Malfunctions P.00-15.

NO:

 Go to Step 2.

STEP 2. Check for harness connector B- 21 at the
intermediate connector and B-10 at the ECM for damage.

Q:Is the harness connector in good condition?

YES:

 Go to Step 3.

NO:

 Repair it. Refer to GROUP 00E, Harness Connector

Inspection P.00E-2. Then go to Step 10.

STEP 3. Measure the injector supply voltage at the
intermediate connector harness B-21 and ground.

3

4

5

8

9

1

2

6

7

10

ZK603326

B-21 Harness
connector:
harness side

AA00

(1)

Disconnect the intermediate connector B-21 and measure at
the female connector side.

(2)

Turn the ignition switch to the "ON" position.

(3)

Measure the voltage between terminal No. 6 and ground.

｠

Voltage should be battery positive voltage.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the measured resistance battery positive voltage?

YES:

 Go to Step 5.

NO:

 Go to Step 4.

13Ab-366

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES