CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B15C111,B15C113; GNSS Antenna Circuit Short to Ground; 2021 - 2024 MY Camry [10/2020

Last Modified: 11-20-2023	6.11:8.1.0	Doc ID: RM100000001RX41
Model Year Start: 2021	Model: Camry	Prod Date Range: [10/2020 - ]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B15C111,B15C113; GNSS Antenna Circuit Short to Ground; 2021 - 2024 MY Camry [10/2020 - ]

DTC

B15C111

GNSS Antenna Circuit Short to Ground

DTC

B15C113

GNSS Antenna Circuit Open

DESCRIPTION

These DTCs are stored when a malfunction occurs in the telephone and GPS antenna (for Roof Side) circuit.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15C111

GNSS Antenna Circuit Short to Ground

Current to the GNSS antenna is lower than the malfunction threshold for 10 seconds or more when the engine switch is on (IG)

(Short circuit)

DCM (telematics transceiver)
Telephone and GPS antenna assembly (for Roof Side)
Telephone and GPS antenna cord (for Type A)
Telephone and GPS antenna cord (for Type B)
Telephone and GPS antenna cord (No. 2 antenna cord sub-assembly)
Telephone and GPS antenna cord (No. 5 antenna cord sub-assembly)

B15C113

GNSS Antenna Circuit Open

Current to the GNSS antenna is higher than the malfunction threshold for 10 seconds or more when the engine switch is on (IG)

(Open circuit)

DCM (telematics transceiver)
Telephone and GPS antenna assembly (for Roof Side)
Telephone and GPS antenna cord (for Type A)
Telephone and GPS antenna cord (for Type B)
Telephone and GPS antenna cord (No. 2 antenna cord sub-assembly)
Telephone and GPS antenna cord (No. 5 antenna cord sub-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 Safety Connect System.

Click here

HINT:

Refer to "PARTS LOCATION" for the installation location of telephone and GPS antenna cord.

Click here

PROCEDURE

CHECK DTC

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Clear the DTCs.

Body Electrical > Telematics > Clear DTCs

(f) Check for DTCs and check that no DTCs are output.

Body Electrical > Telematics > Trouble Codes

OK:

No DTCs are output.

CHECK FOR INTERMITTENT PROBLEMS

2.	INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 5 ANTENNA CORD SUB-ASSEMBLY)

(a) Disconnect the K telephone and GPS antenna cord (No. 5 antenna cord sub-assembly) connector.

*a	Component without harness connected (Telephone and GPS Antenna Cord (No. 5 Antenna Cord Sub-assembly))

(b) Disconnect the J telephone and GPS antenna cord (No. 5 antenna cord sub-assembly) connector.

*a	Component without harness connected (Telephone and GPS Antenna Cord (No. 5 Antenna Cord Sub-assembly))

Standard Resistance:

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

REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 5 ANTENNA CORD SUB-ASSEMBLY)

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

(a) Disconnect the I telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) connector.

*a	Component without harness connected (Telephone and GPS Antenna Cord (No. 2 Antenna Cord Sub-assembly))

(b) Disconnect the H telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) connector.

*a	Component without harness connected (Telephone and GPS Antenna Cord (No. 2 Antenna Cord Sub-assembly))

Standard Resistance:

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

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

4.	INSPECT TELEPHONE AND GPS ANTENNA CORD (for Type A)

(a) Disconnect the G telephone and GPS antenna cord (for Type A) connector.

*a	Component without harness connected (Telephone and GPS Antenna Cord (for Type A))

(b) Disconnect the E telephone and GPS antenna cord (for Type A) connector.

*a	Component without harness connected (Telephone and GPS Antenna Cord (for Type A))

Standard Resistance:

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

REPLACE TELEPHONE AND GPS ANTENNA CORD (for Type A)

5.	INSPECT TELEPHONE AND GPS ANTENNA CORD (for Type B)

(a) Disconnect the D telephone and GPS antenna cord (for Type B) connector.

*a	Component without harness connected (Telephone and GPS Antenna Cord (for Type B))

(b) Disconnect the B telephone and GPS antenna cord (for Type B) connector.

*a	Component without harness connected (Telephone and GPS Antenna Cord (for Type B))

Standard Resistance:

Tester Connection	Condition	Specified Condition
D-1 - B-1	Always	Below 1 Ω
D-1 or B-1 - Body ground	Always	10 kΩ or higher
D-1a - B-1a	Always	Below 1 Ω
D-1a or B-1a - Body ground	Always	10 kΩ or higher

REPLACE TELEPHONE AND GPS ANTENNA CORD (for Type B)

6.	REPLACE TELEPHONE AND GPS ANTENNA (for Roof Side)

(a) Replace the telephone and GPS antenna (for Roof Side) with a known good one.

Click here

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Telematics > Clear DTCs

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

Body Electrical > Telematics > Trouble Codes

OK:

No DTCs are output.

END

8.	REPLACE DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (telematics transceiver) with a new one.

Click here

NOTICE:

The engine switch must be off.
Do not exchange the DCM (telematics transceiver) with one from another vehicle.

PERFORM DCM ACTIVATION