B15CB

CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B1573,B15CB: Short in Telephone Antenna Circuit
B1573 - Short in Telephone Antenna Circuit
B15CB - Telematics Transceiver Antenna Disconnected

DESCRIPTION

This DTC is stored when the DCM (telematics transceiver) detects an open or short in the telephone and GPS antenna circuit. The DCM (telematics transceiver) sends and receives signals at a radio frequency of between 824 and 894 MHz or 1850 and 1990 MHz through the telephone and GPS antenna.





HINT
Refer to "Parts Location" for the installation location of the telephone and GPS antenna cord Safety Connect System.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Turn the power switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (IG) and wait for 10 seconds.

(d) Perform "Health Check" and check for current DTCs Health Check.

Result





B -- CHECK FOR INTERMITTENT PROBLEMS Problem Symptoms Table
A -- Continue to next step.

2. INSPECT TELEPHONE AND GPS ANTENNA (TELEPHONE ANTENNA ASSEMBLY)

(a) Disconnect the telephone and GPS antenna connector.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE TELEPHONE AND GPS ANTENNA (TELEPHONE ANTENNA ASSEMBLY) Removal
OK -- Continue to next step.

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

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





(b) Disconnect the No. 3 antenna coed sub-assembly from No. 2 antenna cord sub-assembly.

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

Standard Resistance:





Text in Illustration





NG -- REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 3 ANTENNA CORD SUB-ASSEMBLY)
OK -- Continue to next step.

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

(a) Disconnect the No. 2 antenna cord sub-assembly from No. 3 antenna cord sub-assembly.





(b) Disconnect the No. 2 antenna coed sub-assembly from antenna cord sub-assembly.

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

Standard Resistance:





Text in Illustration





NG -- REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 2 ANTENNA CORD SUB-ASSEMBLY) Removal
OK -- Continue to next step.

5. INSPECT TELEPHONE AND GPS ANTENNA CORD (ANTENNA CORD SUB-ASSEMBLY)

(a) Disconnect the antenna cord sub-assembly from No. 2 antenna cord sub-assembly.





(b) Disconnect the antenna coed sub-assembly from DCM (telematics transceiver).

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

Standard Resistance:





Text in Illustration





NG -- REPLACE TELEPHONE AND GPS ANTENNA CORD (ANTENNA CORD SUB-ASSEMBLY)
OK -- Continue to next step.

6. REPLACE TELEPHONE AND GPS ANTENNA

(a) Replace the telephone and GPS antenna with a normally functioning one and check if the same problem occurs again Removal.

OK:

The system returns to normal.

NG -- REPLACE DCM (TELEMATICS TRANSCEIVER)

OK -- END

7. REPLACE DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (telematics transceiver) Removal.

NOTICE:
* The power switch must be off.
* Do not replace the DCM (telematics transceiver) with one from another vehicle.

NEXT -- PERFORM DCM ACTIVATION DCM Activation