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Home >> Mitsubishi >> 2011 >> Lancer Evolution L4-2.0L Turbo (4B11T/C) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Component Tests and General Diagnostics >> Diagnostics Item 26 >> Part 2

Part 2




DIAGNOSTIC ITEM 26: Short to power supply or ground, open circuit or line-to-line short in the CAN-B bus lines. (Continued)

STEP 26. Check the wiring harness between joint connector (CAN1) C-105 and WCM connector C-07 for line-to-line short. Measure the resistance at joint connector (CAN1) C-105.

(1)Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).





(2)Check that there is continuity between joint connector (CAN1) terminals 7 and 20.
OK: No continuity

Q. Is the check result normal?

YES Go to Step 27.

NO Go to Step 46.

STEP 27. Check the wiring harness between joint connector (CAN1) C-105 and SRS-ECU connector C-37 for line-to-line short. Measure the resistance at joint connector (CAN1) C-105.

(1)Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).





(2)Check that there is continuity between joint connector (CAN1) terminals 8 and 21.
OK: No continuity
Q. Is the check result normal?

YES Go to Step 28.

NO Go to Step 47.

STEP 28. Check the wiring harness between joint connector (CAN1) C-105 and occupant classification-ECU connector D-39-2 for line-to-line short. Measure the resistance at joint connector (CAN1) C-105.

(1)Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).





(2)Check that there is continuity between joint connector (CAN1) terminals 11 and 24.
OK: No continuity
Q. Is the check result normal?

YES Go to Step 29.

NO : Go to Step 48.

STEP 29. Check the wiring harness between joint connector (CAN1) C-105 and A/C-ECU connector C-22 [vehicles with A/C] or heater control unit connector C-53 [vehicles without A/C] for line-to-line short. Measure the resistance at joint connector (CAN1) C-105.

(1)Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).





(2)Check that there is continuity between joint connector (CAN1) terminals 1 and 12.
OK: No continuity
Q. Is the check result normal?

YES (vehicles without MMCS) : Go to Step 30.

YES (vehicles with MMCS) : Go to Step 31.

NO : Go to Step 49.

STEP 30. Check the wiring harness between joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107 for line-to-line short. Measure the resistance at joint connector (CAN1) C-105.

(1)Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).





(2)Check that there is continuity between joint connector (CAN1) terminals 5 and 16.
OK: No continuity
Q. Is the check result normal?

YES (vehicles without satellite radio) : Go to Step 33.

YES (vehicles with satellite radio) : Go to Step 32.

NO : Go to Step 50.

STEP 31. Check the wiring harness between joint connector (CAN1) C-105 and CAN box unit connector C-15 for line-to-line short. Measure the resistance at joint connector (CAN1) C-105.

(1)Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).





(2)Check that there is continuity between joint connector (CAN1) terminals 5 and 16.
OK: No continuity
Q. Is the check result normal?

YES (vehicles without satellite radio) : Go to Step 33.

YES (vehicles with satellite radio) : Go to Step 32.

NO : Go to Step 51.

STEP 32. Check the wiring harness between joint connector (CAN1) C-105 and satellite radio tuner connector C-18 for line-to-line short. Measure the resistance at joint connector (CAN1) C-105.

(1)Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).





(2)Check that there is continuity between joint connector (CAN1) terminals 2 and 13.
OK: No continuity
Q. Is the check result normal?

YES Go to Step 33.

NO Go to Step 52.

STEP 33. Check the wiring harness between joint connector (CAN1) C-105 and EATCS-ECU connector C-301 for line-to-line short. Measure the resistance at joint connector (CAN1) C-105.

(1)Disconnect joint connector (CAN1) and ETACS-ECU connector C-301, and check that there is continuity at the harness side of joint connector (CAN1).





(2)Check that there is continuity between joint connector (CAN1) terminals 6 and 19.
OK: No continuity
Q. Is the check result normal?

YES Go to Step 53.

NO Repair the wiring harness between joint connector (CAN1) C-105 and ETACS-ECU connector C-301.

STEP 34. Check the wiring harness between joint connector (CAN1) C-105 and combination meter connector C-04 for open circuit.

CAUTION:
Strictly observe the specified wiring harness repair procedure.
For details refer to Precautions When CAN Bus Line(s) are Repaired.

(1)Disconnect joint connector (CAN1) C-105 and combination meter connector C-301, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 3) and combination meter connector C-04 (terminal 14)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 14) and combination meter connector C-04 (terminal 15)
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between joint connector (CAN1) C-105 and combination meter connector C-04 in good condition?

YES (vehicles with KOS) : Go to Step 35.

YES (vehicles with WCM) : Go to Step 36.

NO ((vehicles with KOS or WCM) : Go to Step 44.

STEP 35. Check the wiring harness between joint connector (CAN1) C-105 and KOS-ECU connector C-05 for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and KOS-ECU connector C-05, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 9) and KOS-ECU connector C-05 (terminal 1)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 22) and KOS-ECU connector C-05 (terminal 2)
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between joint connector (CAN1) C-105 and KOS-ECU connector C-05 in good condition?

YES Go to Step 37.

NO Go to Step 45.

STEP 36. Check the wiring harness between joint connector (CAN1) C-105 and WCM connector C-07 for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and WCM connector C-07, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 7) and WCM connector C-07 (terminal 11)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 20) and WCM connector C-07 (terminal 10)
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between joint connector (CAN1) C-105 and WCM connector C-07 in good condition?

YES Go to Step 37.

NO Go to Step 46.

STEP 37. Check the wiring harness between joint connector (CAN1) C-105 and SRS-ECU connector C-37 for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and SRS-ECU connector C-37, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 8) and SRS-ECU connector C-37 (terminal 15)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 21) and SRS-ECU connector C-37 (terminal 16)
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between joint connector (CAN1) C-105 and SRS-ECU connector C-37 in good condition?

YES Go to Step 38.

NO Go to Step 47.

STEP 38. Check the wiring harness between joint connector (CAN1) C-105 and occupant classification-ECU connector D-39-2 for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and occupant classification-ECU connector D-39-2, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 11) and occupant classification-ECU connector D-39-2 (terminal 24)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 24) and occupant classification-ECU connector D-39-2 (terminal 25)
OK: Continuity exists (2ohms or less)
 NOTE:
Prior to the wiring harness inspection, check intermediate connector C-41 and front seat assembly (LH) connector D-39, and repair if necessary.

Q. Is the wiring harness between joint connector (CAN1) C-105 and occupant classification-ECU connector D-39-2 in good condition?

YES Go to Step 39.

NO : Go to Step 48.

STEP 39. Check the wiring harness between joint connector (CAN1) C-105 and A/C-ECU connector C-22 [vehicles with A/C] or heater control unit connector C-53 [vehicles without A/C] for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and A/C-ECU connector C-22 [vehicles with A/C] or heater control unit connector C-53 [vehicles without A/C], and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 1) and A/C-ECU connector C-22 [vehicles with A/C] or heater control unit connector C-53 [vehicles without A/C] (terminal 11)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 12) and A/C-ECU connector C-22 [vehicles with A/C] or heater control unit connector C-53 [vehicles without A/C] (terminal 12)
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between joint connector (CAN1) C-105 and A/C-ECU connector C-22[ vehicles with A/C] or heater control unit connector C-53[ vehicles without A/C] in good condition?

YES (vehicles without MMCS) : Go to Step 40.

YES (vehicles with MMCS) : Go to Step 41.

NO : Go to Step 49.

STEP 40. Check the wiring harness between joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107 for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 5) and radio and CD player or CD changer connector C-107 (terminal 23)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 16) and radio and CD player or CD changer connector C-107 (terminal 33)
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107 in good condition?

YES (vehicles without satellite radio) : Go to Step 43.

YES (vehicles with satellite radio) : Go to Step 42.

NO : Go to Step 50.

STEP 41. Check the wiring harness between joint connector (CAN1) C-105 and CAN box unit connector C-15 for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and CAN box unit connector C-15, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 5) and CAN box unit connector C-15 (terminal 8)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 16) and CAN box unit connector C-15 (terminal 9)
OK: Continuity exists (2ohms or less)
 NOTE:
Prior to the wiring harness inspection, check intermediate connector C-108, and repair if necessary.

Q. Is the wiring harness between joint connector (CAN1) C-105 and CAN box unit connector C-15 in good condition?

YES (vehicles without satellite radio) : Go to Step 43.

YES (vehicles with satellite radio) : Go to Step 42.

NO : Go to Step 51.

STEP 42. Check the wiring harness between joint connector (CAN1) C-105 and satellite radio tuner connector C-18 for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and satellite radio tuner connector C-18, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 2) and satellite radio tuner connector C-18 (terminal 4)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 13) and satellite radio tuner connector C-18 (terminal 11)
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between joint connector (CAN1) C-105 and satellite radio tuner connector C-18 in good condition?

YES Go to Step 43.

NO Go to Step 52.

STEP 43. Check the wiring harness between joint connector (CAN1) C-105 and ETACS-ECU connector C-301 for open circuit.

(1)Disconnect joint connector (CAN1) C-105 and ETACS-ECU connector C-301, and check the wiring harness.





(2)Check the wiring harness between joint connector (CAN1) C-105 (terminal 6) and ETACS-ECU connector C-301 (terminal 6)
OK: Continuity exists (2ohms or less)





(3)Check the wiring harness between joint connector (CAN1) C-105 (terminal 19) and ETACS-ECU connector C-301 (terminal 7)
OK: Continuity exists (2ohms or less)
Q. Is the wiring harness between joint connector (CAN1) C-105 and ETACS-ECU connector C-301 in good condition?

YES Go to Step 53.

NO Repair the wiring harness between joint connector (CAN1) C-105 and ETACS-ECU connector C-301.
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