NAVIGATION SYSTEM, Diagnostic DTC:B15C0, B15C1

DTC Code DTC Name
B15C0 Short in GPS Antenna
B15C1 Open in GPS Antenna

DESCRIPTION

These DTCs are stored when a malfunction occurs in the navigation antenna assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15C0 Short in GPS Antenna Navigation antenna error

w/o Heated Windshield Defroster System


  • Navigation antenna assembly

  • Antenna cord sub-assembly

  • Navigation ECU

  • Radio receiver assembly

  • Harness or connector

w/ Heated Windshield Defroster System:


  • Roof antenna assembly

  • No. 4 antenna cord sub-assembly

  • No. 2 antenna cord sub-assembly

  • No. 1 antenna cord sub-assembly

  • Antenna divider

  • Navigation ECU

  • Radio receiver assembly
B15C1 Open in GPS Antenna Error of the power source to the navigation antenna

w/o Heated Windshield Defroster System


  • Navigation antenna assembly

  • Antenna cord sub-assembly

  • Navigation ECU

  • Radio receiver assembly

  • Harness or connector

w/ Heated Windshield Defroster System:


  • Roof antenna assembly

  • No. 4 antenna cord sub-assembly

  • No. 2 antenna cord sub-assembly

  • No. 1 antenna cord sub-assembly

  • Antenna divider

  • Navigation ECU

  • Radio receiver assembly

WIRING DIAGRAM

B008GZ2E05
B008GZ9E01

CAUTION / NOTICE / HINT

Note

When replacing the radio receiver assembly or navigation ECU, always replace it with a new one.

If a radio receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:


  • A communication malfunction DTC may be stored.

  • The radio receiver assembly or navigation ECU may not operate normally.

Tech Tips

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

Click here

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      w/o Heated Windshield Defroster System A
      w/ Heated Windshield Defroster System B

    B

    INSPECT ANTENNA DIVIDER Click here

    A

  3. INSPECT NAVIGATION ANTENNA ASSEMBLY


    1. Remove the navigation antenna assembly.

      Click here

    2. Inspect the navigation antenna assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NAVIGATION ANTENNA ASSEMBLY Click here

    OK

  4. CHECK ANTENNA CORD SUB-ASSEMBLY


    1. B008IGKC03
      *a

      Front view of wire harness connector

      (to Navigation Antenna Assembly)
      *b

      Front view of wire harness connector

      (to Wire Harness)

      Disconnect the antenna connector from the navigation antenna assembly.

    2. Disconnect the antenna connector from the wire harness.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-3 - I147-1 (GPS) Always Below 1 Ω
      A-3a - I147-1a Always Below 1 Ω
      A-3 - Body ground Always 10 kΩ or higher
      A-3a - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (ANTENNA CORD SUB-ASSEMBLY - NAVIGATION ECU)


    1. B008I65C05
      *a

      Front view of wire harness connector

      (to Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to Navigation ECU)

      Disconnect the antenna cord sub-assembly connector.

    2. Disconnect the navigation ECU connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I147-1 (GPS) - I190-1 (GPS) Always Below 1 Ω
      I147-1a - I190-1a Always Below 1 Ω
      I147-1 (GPS) - Body ground Always 10 kΩ or higher
      I147-1a - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE NAVIGATION ECU


    1. Replace the navigation ECU with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (NAVIGATION ECU IS DEFECTIVE)

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

  8. INSPECT ANTENNA DIVIDER


    1. B008I8YN02

      Remove the antenna divider.

      Click here

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      6 - 2 Always 10 kΩ or higher
      2 - 2a Always 243 to 267 Ω
      6 - 6a Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ANTENNA DIVIDER Click here

    OK

  9. CHECK NO. 4 ANTENNA CORD SUB-ASSEMBLY


    1. B008I0TC02
      *a

      Front view of wire harness connector

      (to Roof Antenna Assembly)
      *b

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)

      Disconnect the antenna connector from the roof antenna assembly.

    2. Disconnect the antenna connector from No. 2 antenna cord sub-assembly.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-2 - B-2 Always Below 1 Ω
      A-2a - B-2a Always Below 1 Ω
      A-2 - Body ground Always 10 kΩ or higher
      A-2a - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 4 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  10. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY


    1. B008HQIC02
      *a

      Front view of wire harness connector

      (to No. 4 Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to No. 1 Antenna Cord Sub-assembly)

      Disconnect the antenna connector from the No. 4 antenna cord sub-assembly.

    2. Disconnect the antenna connector from No. 1 antenna cord sub-assembly.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      B-2 - C-2 Always Below 1 Ω
      B-2a - C-2a Always Below 1 Ω
      B-2 - Body ground Always 10 kΩ or higher
      B-2a - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  11. CHECK NO. 1 ANTENNA CORD SUB-ASSEMBLY


    1. B008IVDC01
      *a

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to Antenna Divider)
      *c

      Front view of wire harness connector

      (to Navigation ECU)

      Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.

    2. Disconnect the antenna connector from the antenna divider.

    3. Disconnect the antenna connector from the navigation ECU.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      C-2 - D-6 Always Below 1 Ω
      C-2a - D-6a Always Below 1 Ω
      D-2 - E-1 (GPS) Always Below 1 Ω
      D-2a - E-1a Always Below 1 Ω
      C-2 - Body ground Always 10 kΩ or higher
      C-2a - Body ground Always 10 kΩ or higher
      D-2 - Body ground Always 10 kΩ or higher
      D-2a - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 1 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  12. REPLACE ANTENNA DIVIDER


    1. Replace the antenna divider with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  13. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (ANTENNA DIVIDER IS DEFECTIVE)

    NG

  14. REPLACE ROOF ANTENNA ASSEMBLY


    1. Replace the roof antenna assembly with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  15. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (ROOF ANTENNA ASSEMBLY IS DEFECTIVE)

    NG

  16. REPLACE NAVIGATION ECU


    1. Replace the navigation ECU with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  17. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END (NAVIGATION ECU IS DEFECTIVE)

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here