DESCRIPTION
These DTCs are stored when the DCM (Telematics Transceiver) detects an open or a short in the telephone and GPS antenna assembly (for Front 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 Front Side).
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
B1536 |
Short in Telephone SUB Antenna Circuit |
Telephone and GPS antenna assembly (for Front Side) impedance is lower than malfunction criterion for 10 seconds when ignition switch is ON. (Short circuit) |
|
B1537 |
Open in Telephone SUB Antenna Circuit |
Telephone and GPS antenna assembly (for Front 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 B1536 or B1537 is output |
A |
DTC B1536 or B1537 is not output |
B |
B |
CHECK FOR INTERMITTENT PROBLEMS |
|
2. |
INSPECT TELEPHONE AND GPS ANTENNA ASSEMBLY (for Front Side) |
(a) Disconnect the D telephone and GPS antenna cord (antenna cord sub-assembly) connector from the telephone and GPS antenna assembly (for Front Side). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
2 - 2a |
Always |
4 to 11 kΩ |
NG |
REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY (for Front Side) |
|
3. |
INSPECT TELEPHONE AND GPS ANTENNA CORD (ANTENNA CORD SUB-ASSEMBLY) |
(a) Disconnect the telephone and GPS antenna cord (antenna cord sub-assembly) connector from the telephone and GPS antenna assembly (for Front Side). |
|
(b) Disconnect the telephone and GPS antenna cord (antenna cord sub-assembly) connector from the DCM (Telematics Transceiver). |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D-2 - A-1 |
Always |
Below 1 Ω |
D-2 or A-1 - Body ground |
Always |
10 kΩ or higher |
D-2a - A-1a |
Always |
Below 1 Ω |
D-2a or A-1a - Body ground |
Always |
10 kΩ or higher |
NG |
REPLACE TELEPHONE AND GPS ANTENNA CORD (ANTENNA CORD SUB-ASSEMBLY) |
|
4. |
REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY (for Front Side) |
(a) Replace the telephone and GPS antenna assembly (for Front Side) with a known good one and check if the same problem occurs again.
Click here
OK:
The system returns to normal.
OK |
END |
|
5. |
REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (Telematics Transceiver).
Click here
NOTICE:
NEXT |
PERFORM DCM ACTIVATION |
Toyota CH-R Service Manual > Quarter Garnish: Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE
1. INSTALL QUARTER GARNISH MOULDING
HINT:
When installing the quarter garnish moulding, heat the quarter pillar cover sub-assemb ...
Toyota CH-R Owners Manual > For safe use: Before driving
Floor mat
Use only floor mats designed specifically for vehicles of the same model and
model year as your vehicle. Fix them securely in place onto the carpet.
1. Insert the retaining hooks (clips) into the floor mat eyelets.
2. Turn the upper knob of each retaining hook (clip) to secure t ...