| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001N4Q0 |
| Model Year Start: 2021 | Model: Corolla | Prod Date Range: [04/2020 - 09/2022] |
| Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for HV Model): B153711,B153713; Telephone Sub Antenna Circuit Short to Ground; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022] | ||
|
DTC |
B153711 |
Telephone Sub Antenna Circuit Short to Ground |
|
DTC |
B153713 |
Telephone Sub Antenna Circuit Open |
DESCRIPTION
These DTCs are stored when a malfunction occurs in the telephone and GPS antenna (for Front Side).
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B153711 |
Telephone Sub Antenna Circuit Short to Ground |
Telephone antenna (sub) impedance (Ω) is lower than the malfunction threshold for 10 seconds or more when the power switch is on (IG) (Short circuit) |
|
|
B153713 |
Telephone Sub Antenna Circuit Open |
Telephone antenna (sub) impedance (Ω) is higher than the malfunction threshold for 10 seconds or more when the power switch is on (IG) (Open circuit) |
|
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
![2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for HV Model): PRECAUTION](/t3Portal/stylegraphics/info.gif)
HINT:
Refer to "PARTS LOCATION" for the installation location of telephone and GPS antenna cord.
Click here
PROCEDURE
|
1. |
CHECK 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 or more.
(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.
| OK |
|
|
|
2. |
INSPECT TELEPHONE AND GPS ANTENNA (FOR FRONT SIDE) |
|
(a) Remove the telephone and GPS antenna (for Front Side). Click here
|
|
(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 |
|
|
|
3. |
INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 2 ANTENNA CORD SUB-ASSEMBLY) |
|
(a) Disconnect the D telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) connector. |
|
|
(b) Disconnect the A telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D-4 - A-1 |
Always |
Below 1 Ω |
|
D-4 or A-1 - Body ground |
Always |
10 kΩ or higher |
|
D-4a - A-1a |
Always |
Below 1 Ω |
|
D-4a or A-1a - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 2 ANTENNA CORD SUB-ASSEMBLY) |
|
|
4. |
REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver) with a new one.
Click here
NOTICE:
- The power switch must be off.
- Do not exchange the DCM (telematics transceiver) with one from another vehicle.
| NEXT |
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