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Home >> Toyota >> 2017 >> Prius V Two >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display - (Diagnostic Codes, Circuit Tests & Symptom Tests) >> Meter / Gauge System >> Symptom Tests >> Meter Illumination is Always Dark [08/2015 - ] >> Procedure

Meter Illumination is Always Dark [08/2015 - ]: Procedure

  1. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if CAN communication DTCs are output. Refer to DIAGNOSIS SYSTEM [08/2015 - ] .

      Result

      Result Proceed to
      CAN communication DTCs are not output. A
      CAN communication DTCs are output. B

    B → Refer to   7 

    A: Go to next step 

  2. READ VALUE USING TECHSTREAM (ILLUMINATION RATE INFO) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Main Body / Data List.
    5. Read the Data List according to the display on the Techstream.
      MAIN BODY

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Illumination Rate Info Illumination rate information/0 ms. to 99.99 ms. Value output according to ambient light level -

      Result

      Result Proceed to
      The output value changes according to the ambient light level (w/o Multi-information display). A
      The output value changes according to the ambient light level (w/ Multi-information display). B
      The output value does not change according to the ambient light level. C

    B → Refer to   4 

    C → Refer to   6 

    A: Go to next step 

  3. REPLACE METER CIRCUIT PLATE 
    1. Replace the meter circuit plate with a new or a known good one. Refer to DISASSEMBLY [08/2015 - ] .

      OK

      The operation of the combination meter sub-assembly returns to normal.

    NG → Refer to   5 

    OK → END 

  4. REPLACE COMBINATION METER SUB-ASSEMBLY 
    1. Replace the combination meter sub-assembly with a new or a known good one. Refer to REMOVAL [08/2015 - ] .

      OK

      The operation of the combination meter sub-assembly returns to normal.

    NG → Refer to   5 

    OK → END 

  5. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [08/2015 - ] 
  6. CHECK CUSTOMIZE PARAMETER SETTING (SENSITIVITY). Refer to  CUSTOMIZE PARAMETERS [08/2015 - ] 
  7. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]