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Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Corolla and 2005 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CAN BUS LINE (MAIN BUS LINE FOR DISCONNECTION, BUS LINES FOR SHORT CIRCUIT) 
    1. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value Result
    D1-6 (CANH) - D1-14 (CANL) IG switch OFF 54 to 69 Ω OK
    D1-6 (CANH) - D1-14 (CANL) IG switch OFF 69 Ω or higher NG-A
    D1-6 (CANH) - D1-14 (CANL) IG switch OFF Below 54 Ω NG-B
    Fig 1: Checking Can Bus Line
    G02598524Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG-A: CHECK CAN MAIN BUS LINE FOR DISCONNECTION (SEE  CHECK CAN MAIN BUS LINE FOR DISCONNECTION  ) 
    2. NG-B: CHECK CAN BUS LINES FOR SHORT CIRCUIT (SEE  CHECK CAN BUS LINES FOR SHORT CIRCUIT  ) 
    3. OK: GO TO NEXT STEP 
  2. CHECK CAN BUS LINE (CAN-H) FOR SHORT TO +B 
    1. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    D1-6 (CANH) - D1-16 (BAT) IG switch OFF 1 MΩ or higher
    Fig 2: Checking Can Bus Line (CAN-H) For Short To +B
    G02598525Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: CHECK CAN BUS LINE (CAN-H) FOR SHORT TO +B (SEE  CHECK CAN BUS LINE (CAN-H) FOR SHORT TO +B  ) 
    2. OK: GO TO NEXT STEP 
  3. CHECK CAN BUS LINE (CAN-L) FOR SHORT TO +B 
    1. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    D1-14 (CANL) - D1-16 (BAT) IG switch OFF 1 MΩ or higher
    Fig 3: Checking Can Bus Line (CAN-L) For Short To +B
    G02598526Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: CHECK CAN BUS LINE (CAN-L) FOR SHORT TO +B (SEE  CHECK CAN BUS LINE (CAN-L) FOR SHORT TO +B  ) 
    2. OK: GO TO NEXT STEP 
  4. CHECK CAN BUS LINE (CAN-H) FOR SHORT TO GND 
    1. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    D1- (CG) - D1-6 (CANH) IG switch OFF 3 kΩ or higher
    Fig 4: Checking Can Bus Line (CAN-H) For Short To GND
    G02598527Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: CHECK CAN BUS LINE (CAN-H) FOR SHORT TO GND (SEE  CHECK CAN BUS LINE (CAN-H) FOR SHORT TO GND  ) 
    2. OK: GO TO NEXT STEP 
  5. CHECK CAN BUS LINE (CAN-L) FOR SHORT TO GND 
    1. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    D1-4 (CG) - D1 -14 (CANL) IG switch OFF 3 kΩ or higher
    Fig 5: Checking Can Bus Line (CAN-H) For Short To GND
    G02598528Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: CHECK CAN BUS LINE (CAN-L) FOR SHORT TO GND (SEE  CHECK CAN BUS LINE (CAN-L) FOR SHORT TO GND  ) 
    2. OK: GO TO NEXT STEP 

    HOW TO PROCEED WITH TROUBLESHOOTING (SEE  HOW TO PROCEED WITH TROUBLESHOOTING  ) 

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