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) oscillates and receives 824 - 894 MHz or 1850 - 1990 MHz radio-frequency through the telephone and GPS antenna assembly (for Roof Side).
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
B1573 |
Short in Telephone Antenna Circuit |
Telephone and GPS antenna assembly (for Roof Side) impedance is lower than malfunction criterion for 10 seconds when ignition switch is ON. (Short circuit) |
|
B15CB |
Telematics Transceiver Antenna Disconnected |
Telephone and GPS antenna assembly (for Roof Side) impedance is higher than malfunction criterion for 10 seconds when ignition switch is ON. (Open circuit) |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
Click here
Click here
PROCEDURE
1. |
CHECK DTC |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch ON and wait for 10 seconds.
(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 B1573 or B15CB is output |
A |
DTC B1573 or B15CB is not output |
B |
B |
CHECK FOR INTERMITTENT PROBLEMS |
|
2. |
INSPECT TELEPHONE AND GPS ANTENNA ASSEMBLY (for Roof Side) |
(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). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
4 - 4a |
Always |
4 to 11 kΩ |
NG |
REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY (for Roof Side) |
|
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). |
|
(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). |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F-4 - E-1 |
Always |
Below 1 Ω |
F-4 or E-1 - Body ground |
Always |
10 kΩ or higher |
F-4a - E-1a |
Always |
Below 1 Ω |
F-4a or E-1a - Body ground |
Always |
10 kΩ or higher |
NG |
REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 3 ANTENNA CORD SUB-ASSEMBLY) |
|
4. |
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). |
|
(b) Disconnect the B telephone and GPS antenna cord (No. 6 antenna cord sub-assembly) connector from the telematics transceiver. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E-1 - B-1 |
Always |
Below 1 Ω |
E-1 or B-1 - Body ground |
Always |
10 kΩ or higher |
E-1a - B-1a |
Always |
Below 1 Ω |
E-1a or B-1a - Body ground |
Always |
10 kΩ or higher |
NG |
REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 6 ANTENNA CORD SUB-ASSEMBLY) |
|
5. |
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.
OK |
END |
|
6. |
REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (Telematics Transceiver).
Click here
NOTICE:
NEXT |
PERFORM DCM ACTIVATION |
Toyota CH-R Service Manual > Tire Pressure Warning System: ECU Power Source Circuit
DESCRIPTION
This is the power source for the tire pressure warning ECU and receiver.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When replacing the tire pressure warning ECU and receiver, read the
transmitter IDs stored in the old ECU using the Techstream and write them
dow ...
Toyota CH-R Service Manual > Vehicle Stability Control System: Skid Control ECU Malfunction (C1300)
DESCRIPTION
The skid control ECU (brake actuator assembly) stores this DTC if malfunctions
are found in a circuit inside the ECU by self diagnosis.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1300
Skid Contr ...