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

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.

USE SIMULATION METHOD TO CHECK

2.	REPLACE ANTENNA CORD SUB-ASSEMBLY

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

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REPLACE ANTENNA CORD SUB-ASSEMBLY

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)

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

REPLACE NAVIGATION ANTENNA ASSEMBLY

Speaker Output Short (B15C3)

DESCRIPTION This DTC is stored when a malfunction occurs in the speakers. DTC No. Detection Item DTC Detection Condition Trouble Area B15 ...

AV Signal Stoppage (Low Battery Voltage) (B158F)

DESCRIPTION This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the radio and display receiver assembly dropping temporarily. DTC No. ...

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