Toyota CH-R Service Manual: GPS Antenna Connection Malfunction(short) (B15C0,B15C1)

Toyota CH-R Service Manual / Audio / Video / Audio And Visual System(for Radio And Display Type) / GPS Antenna Connection Malfunction(short) (B15C0,B15C1)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15C0

GPS Antenna Connection Malfunction(short)

Navigation antenna malfunction
  • Navigation antenna assembly
  • Antenna cord sub－assembly (for navigation antenna)
  • Radio and display receiver assembly

B15C1

GPS Antenna Connection Malfunction(break)

Navigation antenna power source malfunction
  • Navigation antenna assembly
  • Antenna cord sub－assembly (for navigation antenna)
  • Radio and display receiver assembly

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

    Click here

  • When replacing the navigation ECU, always replace it with a new one. If a navigation ECU which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC is stored.
    • The radio and display receiver assembly may not operate normally.
  • Check that the antenna cord sub-assembly (for navigation antenna) is properly installed and does not have any sharp bends, pinching or loose connections before performing following procedure.

    Click here

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

REPLACE ANTENNA CORD SUB-ASSEMBLY

(a) Replace the antenna cord sub-assembly with a new or known good one.

Click here

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY

OK

3.

INSPECT NAVIGATION ANTENNA ASSEMBLY

(a) Remove the navigation antenna assembly.

Click here

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 1a

Always

50 to 500 Ω

*a

Component without harness connected

(Navigation Antenna Assembly)
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPLACE NAVIGATION ANTENNA ASSEMBLY

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