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.

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  • 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.

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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.

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(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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