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Home >> Mitsubishi >> 2010 >> Lancer ES, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Active Stability Control System (ASC) -- Lancer >> Diagnosis >> Diagnostic Trouble Code Procedures >> DTC C1290 CAN time-out error >> Diagnosis Procedure

Diagnosis Procedure

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

    Use scan tool to diagnose the CAN bus lines.

    Q: Is the check result normal? 

    1. YES:  Go to Step 2.
    2. NO:  Repair the CAN bus lines (Refer to CAN BUS DIAGNOSTIC TABLE ). On completion, go to Step  6.
  2. STEP 2. Using scan tool MB991958, check the DTC 

    Check that the DTCs U0100, U0101, U0126, and U0141 are set in ASC-ECU.

    Q: Is the DTC set? 

    1. YES:  Troubleshoot for the relevant DTC (Refer to DIAGNOSTIC TROUBLE CODE CHART  ). Then go to Step  6.
    2. NO:  Go to Step 3.
  3. STEP 3. Using scan tool MB991958, other system check the DTC. 

    Using scan tool, check if the DTCs are set from the engine control module (ECM), TCM or TC-SST-ECU, AWC-ECU, ETACS-ECU, and steering wheel sensor or not.

    Q: Is the DTC set? 

    1. YES:  Troubleshoot the relevant DTC, and then go to Step  6.
    2. NO:  Go to Step 4.
  4. STEP 4. ETACS-ECU coding data check 

    Refer to CODING LIST .

    Vehicle line 

    OK: LANCER 

    Transmission 

    OK (M/T): 5MT 

    OK (CVT): CVT 

    OK (TC-SST): TC-SST 

    Engine type 

    OK (2.4L engine): 2.4L D4 MPI VVT 

    OK (2.0L Non-Turbo engine): 2.0L D4 MPI VVT 

    OK (2.0L Turbo engine): 2.0L D4 VVT T/C 

    Engine power 

    OK: Normal 

    Chassis type for A.S.C. 

    OK (2.4L engine, 2.0L Non-Turbo engine): Type 4 

    OK (2.0L Turbo engine): Type 6 

    Final drive 

    OK (2.4L engine, 2.0L Non-Turbo engine): Front Drive 

    OK (2.0L Turbo engine): AWD FF Base 

    Transfer 

    OK (2.4L engine, 2.0L Non-Turbo engine): 2WD 

    OK (2.0L Turbo engine): ACD 

    SAS 

    OK: Present 

    4WD/AWD 

    OK: Not present 

    TCM 

    OK (M/T): Not present 

    OK (CVT, TC-SST): Present 

    ACDAYC 

    OK (2.4L engine, 2.0L Non-Turbo engine): Not present 

    OK (2.0L Turbo engine): Present 

    Q: Is the check result normal? 

    1. YES:  Go to Step 5.
    2. NO:  Replace the ETACS-ECU (Refer to ETACS-ECU ), and then go to Step  6.
  5. STEP 5. Check whether the DTC is reset. 

    Q: Is DTC C1290 set? 

    1. YES:  Replace the hydraulic unit (ASC-ECU) (Refer to HYDRAULIC UNIT  ). Then go to Step 6.
    2. NO:  If the trouble symptom is resolved, an intermittent malfunction such as poorly engaged connector(s) or wiring harness is suspected (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
  6. STEP 6. Check whether the DTC is reset. 

    Q: Is DTC C1290 set? 

    1. YES:  Return to Step  1.
    2. NO:  The procedure is complete.
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