| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001Q5JA |
| Model Year Start: 2021 | Model: Avalon HV | Prod Date Range: [08/2020 - ] |
| Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B153711,B153713; Telephone Sub Antenna Circuit Short to Ground; 2021 - 2022 MY Avalon Avalon HV [08/2020 - ] | ||
|
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 ignition switch is ON (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 ignition switch is ON (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 MY Avalon Avalon HV [08/2020 - 08/2021]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: 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 ignition switch off.
(b) Connect the GTS to the DLC3.
(c) Turn the ignition switch to ON and wait for 10 seconds or more.
(d) Turn the GTS 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 ASSEMBLY (for Front Side) |
(a) Remove the navigation antenna assembly.
Click here
(b) Inspect the navigation antenna assembly.
Click here
| NG |
|
REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY (for Front Side)
|
|
|
3. |
INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 4 ANTENNA CORD SUB-ASSEMBLY) |
|
(a) Disconnect the F telephone and GPS antenna cord (No. 4 antenna cord sub-assembly) connector. |
|
|
(b) Disconnect the E telephone and GPS antenna cord (No. 4 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 |
|---|---|---|
|
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. 4 ANTENNA CORD SUB-ASSEMBLY)
|
|
|
4. |
INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 6 ANTENNA CORD SUB-ASSEMBLY) |
|
(a) Disconnect the D telephone and GPS antenna cord (No. 6 antenna cord sub-assembly) connector. |
|
|
(b) Disconnect the A telephone and GPS antenna cord (No. 6 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-1 - A-1 |
Always |
Below 1 Ω |
|
D-1 or A-1 - Body ground |
Always |
10 kΩ or higher |
|
D-1a - A-1a |
Always |
Below 1 Ω |
|
D-1a or A-1a - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 6 ANTENNA CORD SUB-ASSEMBLY)
|
|
|
5. |
REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver) with a new one.
Click here
NOTICE:
- The ignition switch must be off.
- Do not exchange the DCM (telematics transceiver) with one from another vehicle.
| NEXT |
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