DESCRIPTION This DTC is
stored when the DCM (Telematics Transceiver) detects an open or short in
the manual (SOS) switch red indicator circuit of the manual (SOS)
switch. The manual (SOS) switch red indicator
illuminates for 2 seconds and goes off when the engine switch is turned
on (IG). If a malfunction in the safety connect system is detected, the
manual (SOS) switch red indicator will illuminate. However, the manual (SOS) switch red indicator may not illuminate when this DTC is set. |
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area | |
B1570 | Manual (SOS) Switch Red Indicator Malfunction |
Current for manual (SOS) switch red indicator reaches malfunction criteria for 10 seconds when engine switch is on (IG). |
- Roof console box sub-assembly
- Wire harness or connector
- DCM (Telematics Transceiver)
| WIRING DIAGRAM w/o Sliding Roof
 w/ Sliding Roof
 CAUTION / NOTICE / HINT
HINT:
- Before performing this diagnostic procedure, make sure to perform Health
Check and confirm that the DCM/VIN registration information is correct.
Click here 
- The manual (SOS) switch red indicator may not operate to indicate
another DTC has been set, therefore voice guidance is provided.
PROCEDURE (a) Choose the model to be inspected.
| Result |
Proceed to | | w/ Sliding Roof |
A | | w/o Sliding Roof |
B |
| B |
 | GO TO STEP 10 |
|
A |
 | |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG) and wait for 10 seconds.
(d) Turn the Techstream on. (e) Clear the DTCs. Body Electrical > Telematics > Clear DTCs
(f) Recheck for DTCs. Body Electrical > Telematics > Trouble Codes
|
Result | Proceed to | |
DTC B1570, B1571 and B15C5 are output |
A | | DTC B1570 is output (DTC B1571 and B15C5 are not output) |
B |
| B |
| GO TO STEP 6 |
|
A | |
| |
| 3. |
INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (RED INDICATOR) |
| (a) Disconnect the O10 roof console box sub-assembly connector. |
 |
|
*a | Component without harness connected
(Roof Console Box Sub-assembly) | | |
(b) Connect 2 dry-cell batteries (1.5 V each) in series. (c)
Connect the positive (+) lead to terminal 10 (IND1) and the negative
(-) lead to terminal 16 (GND3) of the roof console box sub-assembly
connector. (d) Check if the illumination for the manual (SOS) switch red indicator comes on.
OK: Red indicator comes on.
| NG |
| REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY |
|
OK | |
| |
| 4. |
CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - ROOF CONSOLE BOX SUB-ASSEMBLY) |
(a) Disconnect the G9 DCM (Telematics Transceiver) connector. (b) Disconnect the O10 roof console box sub-assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G9-26 (SIG-) - O10-16 (GND3) |
Always | Below 1 Ω | |
G9-26 (SIG-) or O10-16 (GND3) - Body ground |
Always | 10 kΩ or higher | |
G9-11 (IND1) - O10-10 (IND1) |
Always | Below 1 Ω | |
G9-11 (IND1) or O10-10 (IND1) - Body ground |
Always | 10 kΩ or higher |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 5. |
REPLACE DCM (TELEMATICS TRANSCEIVER) | (a) Replace the DCM (Telematics Transceiver).
Click here
NOTICE:
- The engine switch must be off.
- Do not swap the DCM (Telematics Transceiver) with one from another vehicle.
| NEXT |
| PERFORM DCM ACTIVATION |
| 6. |
CHECK ROOF CONSOLE BOX SUB-ASSEMBLY (MANUAL (SOS) SWITCH RED INDICATOR CONDITION) |
(a) Confirm the red indicator status after the engine switch is turned on (IG).
Click here
|
Result | Proceed to | |
Red indicator remains off |
A | | Red indicator remains on |
B |
| B |
| GO TO STEP 19 |
|
A | |
| |
| 7. |
INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (RED INDICATOR INPUT VOLTAGE) |
| (a) Remove the roof console box sub-assembly but do not disconnect the connectors.
Click here |
 |
|
*a | Component with harness connected
(Roof Console Box Sub-assembly) | | |
(b) Connect the positive lead of a voltmeter to terminal O10-10 (IND1), and the negative lead to terminal O10-16 (GND3).
(c) Measure the voltage. Standard: 1.0 to 8.5 V for 2 seconds after the engine switch is turned on (IG).
0 V when the engine switch is off.
| OK |
| REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY |
|
NG | |
| |
| 8. |
INSPECT DCM (TELEMATICS TRANSCEIVER) (RED INDICATOR OUTPUT VOLTAGE) |
| (a) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors.
Click here |
 |
|
*a | Component with harness connected
(DCM (Telematics Transceiver)) | | |
(b) Connect the positive lead of a voltmeter to terminal G9-11 (IND1), and the negative lead to body ground.
(c) Measure the voltage. Standard: 1.0 to 8.5 V for 2 seconds after the engine switch is turned on (IG).
0 V when the engine switch is off.
| OK |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
NG | |
| |
| 9. |
CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BODY GROUND) |
| (a) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors.
Click here | |
|
|
*a | Component with harness connected
(DCM (Telematics Transceiver)) | | |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G9-11 (IND1) - Body ground |
Always | 10 kΩ or higher |
| OK |
| GO TO STEP 19 |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG) and wait for 10 seconds.
(d) Turn the Techstream on. (e) Clear the DTCs. Body Electrical > Telematics > Clear DTCs
(f) Recheck for DTCs. Body Electrical > Telematics > Trouble Codes
|
Result | Proceed to | |
DTC B1570, B1571 and B15C5 are output |
A | | DTC B1570 is output (DTC B1571 and B15C5 are not output) |
B |
| B |
| GO TO STEP 14 |
|
A | |
| |
| 11. |
INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (RED INDICATOR) |
| (a) Disconnect the O9 roof console box sub-assembly connector. |
 |
|
*a | Component without harness connected
(Roof Console Box Sub-assembly) | | |
(b) Connect 2 dry-cell batteries (1.5 V each) in series. (c)
Connect the positive (+) lead to terminal 7 (IND1) and the negative (-)
lead to terminal 12 (GND3) of the roof console box sub-assembly
connector. (d) Check if the illumination for the manual (SOS) switch red indicator comes on.
OK: Red indicator comes on.
| NG |
| REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY |
|
OK | |
| |
| 12. |
CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - ROOF CONSOLE BOX SUB-ASSEMBLY) |
(a) Disconnect the G9 DCM (Telematics Transceiver) connector. (b) Disconnect the O9 roof console box sub-assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G9-26 (SIG-) - O9-12 (GND3) |
Always | Below 1 Ω | |
G9-26 (SIG-) or O9-12 (GND3) - Body ground |
Always | 10 kΩ or higher | |
G9-11 (IND1) - O9-7 (IND1) |
Always | Below 1 Ω | |
G9-11 (IND1) or O9-7 (IND1) - Body ground |
Always | 10 kΩ or higher |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 13. |
REPLACE DCM (TELEMATICS TRANSCEIVER) | (a) Replace the DCM (Telematics Transceiver).
Click here
NOTICE:
- The engine switch must be off.
- Do not swap the DCM (Telematics Transceiver) with one from another vehicle.
| NEXT |
| PERFORM DCM ACTIVATION |
| 14. |
CHECK ROOF CONSOLE BOX SUB-ASSEMBLY (MANUAL (SOS) SWITCH RED INDICATOR CONDITION) |
(a) Confirm the red indicator status after the engine switch is turned on (IG).
Click here
|
Result | Proceed to | |
Red indicator remains off |
A | | Red indicator remains on |
B |
| B |
| GO TO STEP 19 |
|
A | |
| |
| 15. |
INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (RED INDICATOR INPUT VOLTAGE) |
| (a) Remove the roof console box sub-assembly but do not disconnect the connectors.
Click here |
 |
|
*a | Component with harness connected
(Roof Console Box Sub-assembly) | | |
(b) Connect the positive lead of a voltmeter to terminal O9-7 (IND1), and the negative lead to terminal O9-12 (GND3).
(c) Measure the voltage. Standard: 1.0 to 8.5 V for 2 seconds after the engine switch is turned on (IG).
0 V when the engine switch is off.
| OK |
| REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY |
|
NG | |
| |
| 16. |
INSPECT DCM (TELEMATICS TRANSCEIVER) (RED INDICATOR OUTPUT VOLTAGE) |
| (a) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors.
Click here | |
|
|
*a | Component with harness connected
(DCM (Telematics Transceiver)) | | |
(b) Connect the positive lead of a voltmeter to terminal G9-11 (IND1), and the negative lead to body ground.
(c) Measure the voltage. Standard: 1.0 to 8.5 V for 2 seconds after the engine switch is turned on (IG).
0 V when the engine switch is off.
| OK |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
NG | |
| |
| 17. |
CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BODY GROUND) |
| (a) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors.
Click here | |
|
|
*a | Component with harness connected
(DCM (Telematics Transceiver)) | | |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G9-11 (IND1) - Body ground |
Always | 10 kΩ or higher |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 18. |
REPLACE DCM (TELEMATICS TRANSCEIVER) | (a) Replace the DCM (Telematics Transceiver).
Click here
NOTICE:
- The engine switch must be off.
- Do not swap the DCM (Telematics Transceiver) with one from another vehicle.
| NEXT |
| PERFORM DCM ACTIVATION |
| 19. |
REPLACE DCM (TELEMATICS TRANSCEIVER) | (a) Replace the DCM (Telematics Transceiver).
Click here
NOTICE:
- The engine switch must be off.
- Do not swap the DCM (Telematics Transceiver) with one from another vehicle.
| NEXT |
| PERFORM DCM ACTIVATION | | 
