TELEMATICS TELEMATICS SYSTEM B157011 Indicator (Red) Circuit Short to Ground B157013 Indicator (Red) Circuit Open
DESCRIPTION
This DTC is stored when the telematics transceiver detects an open or short in the emergency call switch indicator (red) circuit of the emergency call switch.
The emergency call switch indicator (red) illuminates for 10 seconds and turns off when the ignition switch is turned to ON.
If a malfunction in the telematics system is detected, the emergency call switch indicator (red) will illuminate. However, the emergency call switch indicator (red) may not illuminate when this DTC is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B157011 | Indicator (Red) Circuit Short to Ground | Emergency call switch indicator (red) impedance (Ω) is lower than the malfunction threshold for 10 seconds or more when the ignition switch is turned to ON | ·
Telematics transceiver ·
Map light assembly (emergency call switch) ·
Harness or connector |
| B157013 | Indicator (Red) Circuit Open | Emergency call switch indicator (red) impedance (Ω) is higher than the malfunction threshold for 10 seconds or more when the ignition switch is turned to ON | ·
Telematics transceiver ·
Map light assembly (emergency call switch) ·
Harness or connector |
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 Registration for Telematics System.
·Before replacing the telematics transceiver, refer to Service Bulletin.
- HINT:
-
If DTC B157011 or B157013 is stored, the emergency call switch indicator (red) may not illuminate when another DTC is stored.
PROCEDURE
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON and wait for 10 seconds or more.
Turn the GTS on.
Clear the DTCs.
- Body Electrical > Telematics > Clear DTCs
- 50002 459
Check for DTCs and check that no DTCs are output.
- Body Electrical > Telematics > Trouble Codes
- 50001 459
- OK:
No DTCs are output.
- Result:
Proceed to OK NG
OK
NG
| *a | Component with harness connected
(Map Light Assembly (Emergency Call Switch)) |
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition 3 (IND1) - 40 (GND3) 2 seconds after ignition switch is turned from ON to off 8.5 to 10 V
→ Below 1 V
- Result:
Proceed to OK NG
OK
NG
| *a | Component without harness connected
(Map Light Assembly (Emergency Call Switch)) |
Remove the map light assembly (emergency call switch).
Connect 2 dry-cell batteries (1.5 V each) in series.
Connect a positive (+) lead from the batteries to terminal 3 (IND1) and a negative (-) lead to terminal 40 (GND3) of the map light assembly (emergency call switch) connector.
Check if the emergency call switch indicator (red) illuminates.
- OK:
Emergency call switch indicator (red) illuminates.
- Result:
Proceed to OK NG
OK
NG
Disconnect the E12 telematics transceiver connector.
Disconnect the Q9 map light assembly (emergency call switch) connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Click Location & Routing(E12,Q9)Location & Routingewd_type=routing;type=c,c;code=E12,Q9
Click Connector(E12)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Telephone Transceiverewd_type=component;type=c;code=E12;pinno=4,3
Click Connector(Q9)Body>Roof Wire>Map Light Assemblyewd_type=component;type=c;code=Q9;pinno=3,40
E12-4 (IND1) - Q9-3 (IND1) Always Below 1 Ω E12-4 (IND1) or Q9-3 (IND1) - Body ground Always 10 kΩ or higher E12-3 (SIG-) - Q9-40 (GND3) Always Below 1 Ω E12-3 (SIG-) or Q9-40 (GND3) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Replace the telematics transceiver with a new one.
- Result:
Proceed to NEXT
NEXT