Toyota CH-R Service Manual: Short in GPS Antenna (B15C0,B15C1)

Toyota CH-R Service Manual / Cellular Communication / Safety Connect System / Short in GPS Antenna (B15C0,B15C1)

DESCRIPTION

These DTCs are stored when the DCM (Telematics Transceiver) detects an open or a short in the telephone and GPS antenna assembly (for Roof Side) circuit. The DCM (Telematics Transceiver) receives 1574.42 - 1576.42 MHz radio frequency signals from satellites through the telephone and GPS antenna assembly (for Roof Side). The cable is a 50 Ω coaxial cable.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15C0	Short in GPS Antenna	Current for telephone and GPS antenna assembly (for Roof Side) is lower (Ω) malfunction criterion for 10 seconds when ignition switch is ON. (Short circuit)	DCM (Telematics Transceiver) Telephone and GPS antenna assembly (for Roof Side) Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) Telephone and GPS antenna cord (No. 6 antenna cord sub-assembly)
B15C1	Open in GPS Antenna	Current for telephone and GPS antenna assembly (for Roof Side) is higher (Ω) malfunction criterion for 10 seconds when ignition switch is ON. (Open circuit)	DCM (Telematics Transceiver) Telephone and GPS antenna assembly (for Roof Side) Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) Telephone and GPS antenna cord (No. 6 antenna cord sub-assembly)

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15C0

Short in GPS Antenna

Current for telephone and GPS antenna assembly (for Roof Side) is lower (Ω) malfunction criterion for 10 seconds when ignition switch is ON.

(Short circuit)

DCM (Telematics Transceiver)
Telephone and GPS antenna assembly (for Roof Side)
Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly)
Telephone and GPS antenna cord (No. 6 antenna cord sub-assembly)

B15C1

Open in GPS Antenna

Current for telephone and GPS antenna assembly (for Roof Side) is higher (Ω) malfunction criterion for 10 seconds when ignition switch is ON.

(Open circuit)

DCM (Telematics Transceiver)
Telephone and GPS antenna assembly (for Roof Side)
Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly)
Telephone and GPS antenna cord (No. 6 antenna cord sub-assembly)

WIRING DIAGRAM

CAUTION / NOTICE / HINT

HINT:

Before performing this diagnostic procedure, make sure to perform Health Check and confirm that the DCM/VIN registration information is correct.
Click here
Refer to "PARTS LOCATION" for the installation location of telephone and GPS antenna cord.
Click here

PROCEDURE

CHECK DTC

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Clear the DTCs.

Body Electrical > Telematics > Clear DTCs

(f) Recheck for DTCs.

Body Electrical > Telematics > Trouble Codes

Result	Proceed to
DTC B15C0 or B15C1 is output	A
DTC B15C0 or B15C1 is not output	B

CHECK FOR INTERMITTENT PROBLEMS

2.	INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 6 ANTENNA CORD SUB-ASSEMBLY)

(a) Disconnect the E telephone and GPS antenna cord (No. 6 antenna cord sub-assembly) connector from the telephone and GPS antenna cord (No. 3 antenna cord sub-assembly).

*a	Component without harness connected (Telephone and GPS Antenna Cord (No. 6 Antenna Cord Sub-assembly))

(b) Disconnect the C telephone and GPS antenna cord (No. 6 antenna cord sub-assembly) connector from the DCM (Telematics Transceiver)

*a	Component without harness connected (Telephone and GPS Antenna Cord (No. 6 Antenna Cord Sub-assembly))

Standard Resistance:

Tester Connection	Condition	Specified Condition
E-2 - C-1	Always	Below 1 Ω
E-2 or C-1 - Body ground	Always	10 kΩ or higher
E-2a - C-1a	Always	Below 1 Ω
E-2a or C-1a - Body ground	Always	10 kΩ or higher

REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 6 ANTENNA CORD SUB-ASSEMBLY)

3.	INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 3 ANTENNA CORD SUB-ASSEMBLY)

(a) Disconnect the F telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) connector from the telephone and GPS antenna assembly (for Roof Side).

*a	Component without harness connected (Telephone and GPS Antenna Cord (No. 3 Antenna Cord Sub-assembly))

(b) Disconnect the E telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) connector from the telephone and GPS antenna cord (No. 6 antenna cord sub-assembly).

*a	Component without harness connected (Telephone and GPS Antenna Cord (No. 3 Antenna Cord Sub-assembly))

Standard Resistance:

Tester Connection	Condition	Specified Condition
F-5 - E-2	Always	Below 1 Ω
F-5 or E-2 - Body ground	Always	10 kΩ or higher
F-5a - E-2a	Always	Below 1 Ω
F-5a or E-2a - Body ground	Always	10 kΩ or higher

REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 3 ANTENNA CORD SUB-ASSEMBLY)

4.	REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY (for Roof Side)

(a) Replace the telephone and GPS antenna assembly (for Roof Side) with a known good one and check if the same problem occurs again.

Click here

OK:

The system returns to normal.

END

5.	REPLACE DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (Telematics Transceiver).

Click here

NOTICE:

The ignition switch must be off.
Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

PERFORM DCM ACTIVATION

Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any part ...

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Safety Connect System DTC No. Detection Item Link B1536 Short in Telephone SUB Antenna Circuit ...

Other materials:

Toyota CH-R Service Manual > Vacuum Pump: Components
COMPONENTS ILLUSTRATION *1 ENGINE WIRE *2 NO. 2 CYLINDER HEAD COVER N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION *1 UNION TO CONNECTOR TUBE HOSE * ...

Toyota CH-R Owners Manual > Interior features: Using the interior lights
Interior lights list Vanity lights (if equipped) Front interior light/front personal lights Rear interior light Engine switch light (vehicles with a smart key system) Glove box light Cup holder illumination (if equipped) Door trim lights (if equipped) ...