LEMON Manuals: Even more car manuals for everyone
Home >> Audi >> 2016 >> A6 Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 158 (Lane Departure Alert System (W/ Dynamic Radar Cruise Control) (Diagnostics) (Introduction)) >> LANE DEPARTURE ALERT SYSTEM (w/ Dynamic Radar Cruise Control System) >> How To Proceed With Troubleshooting [08/2013 - ] >> How To Proceed With Troubleshooting [08/2013 - ]

How To Proceed With Troubleshooting [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

HINT: 

  1. VEHICLE BROUGHT TO WORKSHOP 

    NEXT: Go to next step 

  2. INSPECT AUXILIARY BATTERY VOLTAGE 
    1. Measure the auxiliary battery voltage with the power switch off.

      Standard voltage

      11 to 14 V

      If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding to the next step.

      NEXT: Go to next step 

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* 
    1. Use the Techstream to check if the CAN communication system is functioning normally.
      RESULT

      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output B

      B → GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ] 

      A: Go to next step 

  4. CHECK FOR DTCs* 

    Refer to DTC Check / Clear. Refer to DTC CHECK / CLEAR [08/2013 - ] .

    1. Check for DTCs and note any codes that are output.
    2. Clear the DTCs.
    3. Recheck for DTCs. Based on the DTCs output in the first step, try to reproduce the lane departure alert system DTCs by simulating the conditions indicated by the DTCs.
      RESULT

      Result Proceed to
      DTCs are not output A
      DTCs are output B

      B → GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]  

      A: Go to next step 

  5. PROBLEM SYMPTOMS TABLE 
    1. Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE [08/2013 - ] .
      RESULT

      Result Proceed to
      Fault is not listed in problem symptoms table A
      Fault is listed in problem symptoms table B

      B → Go to step   8 

      A: Go to next step 

  6. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. Terminals of ECU. Refer to TERMINALS OF ECU [08/2013 - ] 
    2. Data List / Active Test. Refer to DATA LIST / ACTIVE TEST [08/2013 - ] 

      NEXT: Go to next step 

  7. ADJUST, REPAIR OR REPLACE 
    NOTE:

    When the lane departure warning camera is replaced with a new one, adjustment of the lane departure warning camera beam axis must be performed. Refer to ADJUSTMENT [08/2013 - ] .

    NEXT: Go to next step 

  8. CONFIRMATION TEST 

    NEXT → END