Mitsubishi Montero Sport (2004+). Manual — part 266
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-477
STEP 9. Check for short circuit to ground between
camshaft position sensor connector A-42 (terminal No. 2)
and PCM connector C-90 (terminal No. 56).
Q: Is the harness wire in good condition?
YES : Replace the PCM. Then go to Step 18.
NO : Repair it. Then go to Step 18.
AK200488
1
2
3
AB
CONNECTOR: A-42
A-42(GR)
HARNESS
CONNECTOR:
COMPONENT SIDE
CAMSHAFT
POSITION
SENSOR
AK103762
42
43
48
49
50
51
52
53
54
55
56
57
46 45 44
58
59
60
61
62
63
64
65
66
47
41
AB
CONNECTOR: C-90
C-90(GR)
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-478
STEP 10. Measure the power supply voltage at camshaft
position sensor connector A-42.
(1) Disconnect the connector A-42 and measure at the harness
side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 3 and ground.
• Voltage should be battery positive voltage.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts)
present?
YES : Go to Step 12.
NO : Go to Step 11.
STEP 11. Check connector C-59 at MFI relay for damage.
Q: Is the connector in good condition?
YES : Check connector C-14 at intermediate connector for
damage, and repair or replace as required. Refer to
GROUP 00E, Harness Connector Inspection
. If intermediate connector is in good
condition, repair harness wire between MFI relay
connector C-59 (terminal No. 1) and camshaft
position sensor connector A-42 (terminal No. 3)
because of open circuit or short circuit to ground.
Then go to Step 18.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 18.
AK200488
1
2
3
AB
CONNECTOR: A-42
A-42(GR)
HARNESS
CONNECTOR:
COMPONENT SIDE
CAMSHAFT
POSITION
SENSOR
AK000011
A-42 HARNESS
CONNECTOR:
COMPONENT SIDE
3 2 1
AF
AK200023
2 1
3
4
CONNECTOR: C-59
AB
C-59
HARNESS
CONNECTOR:
COMPONENT
SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-479
STEP 12. Check for continuity at camshaft position sensor
connector A-42.
(1) Disconnect the connector A-42 and measure at the harness
side.
(2) Check for the continuity between terminal No. 1 and
ground.
• Should be less than 2 ohms.
Q: Does continuity exist?
YES : Go to Step 13.
NO : Repair harness wire between camshaft position
sensor connector A-42 (terminal No. 1) and ground
because of open circuit or harness damage. Then go
to Step 18.
STEP 13. Check connector C-59 at the MFI relay for
damage.
Q: Is the connector in good condition?
YES : Go to Step 14.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 18.
AK200488
1
2
3
AB
CONNECTOR: A-42
A-42(GR)
HARNESS
CONNECTOR:
COMPONENT SIDE
CAMSHAFT
POSITION
SENSOR
AK303788
A-42 HARNESS
CONNECTOR:
COMPONENT SIDE
3 2 1
AB
AK200023
2 1
3
4
CONNECTOR: C-59
AB
C-59
HARNESS
CONNECTOR:
COMPONENT
SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-480
STEP 14. Check connector C-90 at PCM for damage.
Q: Is the connector in good condition?
YES : Go to Step 15.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 18.
STEP 15. Check for harness damage between MFI relay
connector C-59 (terminal No. 1) and camshaft position
sensor connector A-42 (terminal No. 3).
AK103762
42
43
48
49
50
51
52
53
54
55
56
57
46 45 44
58
59
60
61
62
63
64
65
66
47
41
AB
CONNECTOR: C-90
C-90(GR)
HARNESS CONNECTOR:
COMPONENT SIDE
AK200023
2 1
3
4
CONNECTOR: C-59
AB
C-59
HARNESS
CONNECTOR:
COMPONENT
SIDE
AK200488
1
2
3
AB
CONNECTOR: A-42
A-42(GR)
HARNESS
CONNECTOR:
COMPONENT SIDE
CAMSHAFT
POSITION
SENSOR
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