If the telematics transceiver detects an error in the communication between the telematics transceiver and the map light assembly (emergency call switch) as a result of the telematics transceiver self check, this DTC will be stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15C511 | Emergency Call Switch Circuit Short to Ground | Emergency call switch impedance (Ω) is lower than the malfunction threshold for 10 seconds or more when the engine switch is on (IG) | ·
Map light assembly ·
Harness or connector ·
Telematics transceiver |
| B15C513 | Emergency Call Switch Circuit Open | Emergency call switch impedance (Ω) is higher than the malfunction threshold for 10 seconds or more when the engine switch is on (IG) | ·
Map light assembly ·
Harness or connector ·
Telematics transceiver |
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Telematics System.
Before replacing the telematics transceiver, refer to Service Bulletin.
Turn the engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG) and wait for 10 seconds or more.
Turn the GTS on.
Clear the DTCs.
Recheck for DTCs and check if the same DTC is output again.
No DTCs are output.
| Result | Proceed to |
|---|---|
| No DTCs are output. | A |
| DTCs are output. | B |
A
B
Remove the map light assembly.
for 10.25 Inch Display:
| *a | Component without harness connected
(Map Light Assembly) |
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 7 (SIG1) - 19 (GND3) | Emergency call switch not operated | 410 to 414 Ω |
| 7 (SIG1) - 19 (GND3) | Emergency call switch operated | 81 to 83 Ω |
except 10.25 Inch Display:
| *a | Component without harness connected
(Map Light Assembly) |
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| 18 (SIG1) - 12 (GND3) | Emergency call switch not operated | 410 to 414 Ω |
| 18 (SIG1) - 12 (GND3) | Emergency call switch operated | 81 to 83 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I72 telematics transceiver connector.
Disconnect the T6 map light assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I72-21 (SIG1) - T6-7 (SIG1) | Always | Below 1 Ω |
| I72-3 (SIG-) - T6-19 (GND3) | Always | Below 1 Ω |
| I72-21 (SIG1) or T6-7 (SIG1) - Body ground | Always | 10 kΩ or higher |
| I72-3 (SIG-) or T6-19 (GND3) - Body ground | Always | 10 kΩ or higher |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I72-21 (SIG1) - T6-18 (SIG1) | Always | Below 1 Ω |
| I72-3 (SIG-) - T6-12 (GND3) | Always | Below 1 Ω |
| I72-21 (SIG1) or T6-18 (SIG1) - Body ground | Always | 10 kΩ or higher |
| I72-3 (SIG-) or T6-12 (GND3) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG