Diagnostic Procedure

WARNING: This page is about a different car, the 2015 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.

Q: Is the check result normal?
1. YES: Go to Step 3.
2. NO: Repair the CAN bus lines. (Refer to TROUBLESHOOTING ). After repairing the CAN bus line, go to Step 2.
STEP 2. Check whether the DTC is reset.
Q: Is DTC No. C1616 set?
1. YES: Go to Step 3.
2. NO: This diagnosis is complete.
STEP 3. Scan tool diagnostic trouble code
- Check the KOS diagnostic trouble code. (Refer to DIAGNOSTIC TROUBLE CODE TABLE ).
- Check the WCM diagnostic trouble code. (Refer to DIAGNOSTIC TROUBLE CODE TABLE ).
- Check the ETACS diagnostic trouble code. (Refer to DIAGNOSTIC TROUBLE CODE TABLE ).
Q: Is the DTC set?
1. YES: Perform the relevant troubleshooting.
2. NO: Go to Step 4.
STEP 4. Scan tool data list
Item 42: Ignition switch (Refer to DATA LIST REFERENCE TABLE .)

Q: Is the check result normal?
1. YES: Go to Step 9.
2. NO: Go to Step 5.
STEP 5. Ignition switch check
1. Disconnect C-212 ignition switch connector, and check the continuity between the terminals No. 1 and No. 5 at the ignition switch side.
2. Turn the ignition switch to the "ON" position.
  OK: No continuity
Q: Is the check result normal?
1. YES: Go to Step 6.
2. NO: Replace the ignition switch. (Refer to ON-VEHICLE SERVICE ). Then go to Step 10.
STEP 6. Ignition switch connector, ETACS-ECU connector check: C-212, C-315
Q: Is the check result normal?
1. YES: Go to Step 7.
2. NO: Repair the defective connector. Then go to Step 10.
STEP 7. Check the wiring harness between C-212 ignition switch connector terminal No. 5 and C-315 ETACS-ECU connector terminal No. 7.
Check the power supply line for short (for short to the power supply) circuit.

Q: Is the check result normal?
1. YES: Go to Step 8.
2. NO: Repair the wiring harness. Then go to Step 10.
STEP 8. Scan tool data list
ETACS item No. 287: Starter switch (Refer to DATA LIST REFERENCE TABLE ).

Q: Is the check result normal?
1. YES: Go to Step 9.
2. NO: Replace the ETACS-ECU. (Refer to ETACS-ECU ). Then go to Step 9.
STEP 9. Check whether the DTC is reset.
Q: Is DTC No. C1616 set?
1. YES: Replace the AWC-ECU. (Refer to AWC-ECU ). Then go to Step 10.
2. NO: Intermittent malfunction. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
STEP 10. Check whether the DTC is reset.
Q: Is DTC No. C1616 set?
1. YES: Return to Step 1.
2. NO: This diagnosis is complete.