The telephone microphone assembly RH is connected to the navigation receiver assembly via voice recognition microphone 2 signal detection line.
This DTC is stored when the navigation receiver assembly detects disconnection of telephone microphone assembly RH.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Priority |
|---|---|---|---|---|---|
| B154913 | Voice Recognition Microphone2 Circuit Open | Voice recognition microphone 2 terminal (SNS2) disconnected
(2 trip detection logic) |
·
Telephone microphone assembly RH ·
Map light assembly ·
Navigation receiver assembly ·
Harness or connector |
Navigation System | A |
When replacing the telematics transceiver, make sure to replace it with a new one.
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed.
Disconnect the P24 map light assembly connector.
Disconnect the G157 navigation receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P24-9 (SNS2) - G157-21 (SNS2) | Always | Below 1 Ω |
| P24-8 (MO2-) - G157-18 (MI2-) | Always | Below 1 Ω |
| P24-9 (SNS2) or G196-21 (SNS2) - Body ground | Always | 10 kΩ or higher |
| P24-8 (MO2-) or G196-18 (MI2-) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
With the navigation receiver assembly connectors connected, disconnect the P24 map light assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P24-8 (MO2-) -Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Component without harness connected
(Map Light Assembly) |
Remove the map light assembly.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 9 (SNS2) - 8 (MO2-) | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Component without harness connected
(Map Light Assembly [Wire Harness Side]) |
| *b | Component without harness connected
(Map Light Assembly [Telephone Microphone Assembly RH Side]) |
Remove the map light assembly.
Disconnect the telephone microphone assembly RH connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 9 (SNS2) - A-1 (SNS2) | Always | Below 1 Ω |
| 8 (MO2-) - A-2 (MO2-) | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG