Mitsubishi Outlander (2003+). Manual - part 142

 

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Mitsubishi Outlander (2003+). Manual - part 142

 

 

IGNITION SYSTEM

ENGINE ELECTRICAL

16-33

ON-VEHICLE SERVICE

IGNITION COIL (WITH BUILT-IN POWER TRANSISTOR) CHECK <4G63>

M1163001200409

Check by the following procedure, and replace if 
there is a malfunction.

SECONDARY COIL RESISTANCE CHECK

Measure the resistance between the high-voltage 
terminals of the ignition coil.

Standard value: 8.5 

 11.5 k

PRIMARY COIL AND POWER 
TRANSISTOR CONTINUITY CHECK

NOTE: 

.

 An analogue-type circuit tester should be used.

Connect the negative (-) prove of the circuit tester 
to terminal No. 1.

CAUTION

This test must be performed quickly (in less 

than 10 seconds) to prevent coil from burning 
and power transistor from breakage.
Connect and disconnect 1.5 V battery between 
terminal No. 2 and No. 3, and observe the ohmmeter 
whether there is continuity or not.

IGNITION COIL (WITH BUILT-IN POWER TRANSISTOR) CHECK <4G69>

M1163001200391

Check by the following procedure, and replace if 
there is a malfunction.

SECONDARY COIL RESISTANCE CHECK

NOTE: It is impossible to check the secondary coil 
through the continuity check as a diode is integrated 
in the secondary coil circuit of this ignition coil. 
Accordingly, check the secondary coil in the following 
procedure.
1. Disconnect the ignition coil connector.
2. Remove the ignition coil and install a new spark 

plug to the ignition coil.

3. Connect the ignition coil connector.
4. Earth the side electrode of the spark plug and 

crank the engine.

5. Check that spark is produced between the 

electrodes of the spark plug.

6. If no spark plug is produced, replace the ignition 

coil with a new one and recheck.

7. If spark is produced with the new ignition coil, 

replace the old one as it is faulty. If no spark is 
produced again, the ignition circuit is suspected 
as faulty. Check the ignition circuit.

AKX01264

1.5 V power supply 
between 2 

 3

Continuity between 1 

 

2

When current is flowing

Continuity

When current is not 
flowing

No continuity

AK202356

1 2 3

AE

1.5 V

+

+

IGNITION SYSTEM

ENGINE ELECTRICAL

16-34

PRIMARY COIL AND POWER 
TRANSISTOR CONTINUITY CHECK

NOTE: 

.

 An analogue-type circuit tester should be used.

Connect the negative (-) prove of the circuit tester 
to terminal No. 1.

CAUTION

This test must be performed quickly (in less 

than 10 seconds) to prevent coil from burning 
and power transistor from breakage.
Connect and disconnect 4.5 

 9.0 V battery between 

terminal No. 2 and No. 3, and observe the ohmmeter 
whether there is continuity or not.

RESISTIVE CORD CHECK <4G63>

M1163001400146

Measure the resistance of the all spark plug cables.
1. Check cap and coating for cracks.
2. Measure resistance.

Limit: Maximum 19 k

AK202356

1 2 3

AD

4.5 – 9 V

+

+

4.5 

 9 V power supply 

between 2 

 3

Continuity between 1 

 

2

When current is flowing

Continuity

When current is not 
flowing

No continuity

AKX00382

IGNITION SYSTEM

ENGINE ELECTRICAL

16-35

SPARK PLUG CHECK AND CLEANING <4G63>

M1163004300405

CAUTION

When pulling off the spark plug cable from the 
plug always hold the cable cap, not the cable.
1. Remove the spark plug cables.
2. Remove the spark plugs.

CAUTION

Do not attempt to adjust the gap of the iridium 
plug.

Always use a plug cleaner and finish cleaning 
within 20 seconds. Do not use wire brushes. 
Otherwise, the iridium and platinum tip may 
be damaged.

3. Check the plug gap and replace if the limit is 

exceeded.
Standard value: 1.0 

 1.1 mm

Limit: 1.3 mm

CAUTION

Be careful not to allow foreign matter in 
cylinders.
4. Clean the engine plug holes.
5. Install the spark plugs.

SPARK PLUG CHECK AND CLEANING<4G69>

M1163004300416

1. Remove the spark plugs.

CAUTION

Do not attempt to adjust the gap of the iridium 
plug.

Always use a plug cleaner and finish cleaning 
within 20 seconds. Do not use wire brushes. 
Otherwise, the iridium tip may be damaged.

2. Check the plug gap and replace if the limit is 

exceeded.
Standard value: 0.7 

 0.8 mm

Limit: 1.2 mm

CAUTION

Be careful not to allow foreign matter in 
cylinders.
3. Clean the engine plug holes.
4. Install the spark plugs.

AKX01327AD

Iridium tip

Platinum tip

AKX00383

Iridium tip

AN

IGNITION SYSTEM

ENGINE ELECTRICAL

16-36

CAMSHAFT POSITION SENSOR CHECK

M1163004400264

Check the camshaft position sensor circuit if 
self-diagnosis code, No. P0340 is shown.
(Refer to 

P.13A-142

, GROUP 13A 

 Troubleshooting 

 Inspection procedure for diagnosis code.) <4G63>

(Refer to 

P.13B-179

, GROUP 13B 

 Troubleshooting 

 Inspection procedure for diagnosis code.) <4G69>

CRANK ANGLE SENSOR CHECK

M1163004500324

Check the crank angle sensor circuit if self-diagnosis 
code, No. P0335 is shown.
(Refer to 

P.13A-131

 GROUP 13A 

 Troubleshooting 

 Inspection procedure for diagnosis code.) <4G63>

(Refer to 

P.13B-169

 GROUP 13B 

 Troubleshooting 

 Inspection procedure for diagnosis code.) <4G69>

DETONATION SENSOR CHECK

M1163002900058

Check the detonation sensor circuit if self-diagnosis 
code, No. P0325 is shown.
(Refer to 

P.13A-127

, GROUP 13A 

 Troubleshooting 

 Inspection procedure for diagnosis code.) <4G63>

(Refer to 

P.13B-166

, GROUP 13B 

 Troubleshooting 

 Inspection procedure for diagnosis code.) <4G69>

IGNITION SECONDARY VOLTAGE WAVEFORM CHECK USING AN OSCILLOSCOPE 
<4G63>

M1163001700233

MEASUREMENT METHOD

1. Clamp the secondary pickup around the spark 

plug cable.
NOTE: 

.

The peak ignition voltage will be reversed 
when the spark plug cables No. 2 and No. 4, 
or No. 1 and No. 3 cylinders are clamped.

Because of the two-cylinder simultaneous 
ignition system, the waveforms for two 
cylinders in each group appear during 
waveform observation (No. 1 cylinder - No. 4 
cylinder, No. 2 cylinder - No. 3 cylinder). 
However, waveform observation is only 
applicable for the cylinder with the spark plug 
cable clamped by the secondary pickup.

Identifying which cylinder waveform is 
displayed can be difficult. For reference, 
remember that the waveform of the cylinder 
attached to the secondary pickup will be 
displayed as stable.

2. Clamp the spark plug cable with the trigger 

pickup.
NOTE: Clamp the trigger pickup to the same 
spark plug cable clamped by the secondary 
pickup.

 

 

 

 

 

 

 

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