DESCRIPTION
This may occur when the intensity of telephone radio frequency was very weak, or the safety connect system has a malfunction and a DTC is set.
PROCEDURE
1. |
CHECK COMMUNICATION SERVICE CONDITION |
(a) Move the vehicle.
(1) If the vehicle is outside the communication service area, move the vehicle to a communication service area, wait for a while and perform the operation again.
OK:
Same problem does not occur.
OK | ![]() |
END |
|
2. |
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) Perform "Health Check" and check for current DTCs.
Click here
Result |
Proceed to |
---|---|
DTCs are not output |
A |
DTCs are output |
B |
B | ![]() |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
3. |
CHECK DCM OPERATION HISTORY |
(a) Check "DCM Operation History".
Click here
Result |
Proceed to |
---|---|
Signal strength is weak (0 or 1) |
A |
Communication indicates "Fail" |
|
No problems with signal strength or communication |
B |
HINT:
If there was a communication problem in the past but the communications are working correctly now, it is possible that the source of the problem was temporary radio interference, or the vehicle may have been outside the service area.
B | ![]() |
END |
|
4. |
REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (Telematics Transceiver).
Click here
NOTICE:
NEXT | ![]() |
PERFORM DCM ACTIVATION |
Toyota CH-R Service Manual > Lighting System: Initialization
INITIALIZATION
HEADLIGHT ECU SUB-ASSEMBLY LH INITIALIZATION (for LED Headlight)
NOTICE:
If any of the work in the table below has been performed, vehicle information
registration and initialization of the headlight ECU sub-assembly LH are
necessary.
Performed W ...
Toyota CH-R Service Manual > Seat Heater System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Seat Heater System
DTC No.
Detection Item
Link
B14B5
Lost Communication with Front Seat Temperature Adjustment Switch LIN
...