B1570
CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B1570: Manual (SOS) Switch Red Indicator Malfunction
B1570 - Manual (SOS) Switch Red Indicator Malfunction
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 stored.
HINT
The manual (SOS) switch red indicator will not illuminate to indicate that another DTC is stored. Therefore a voice guidance will indicate that other DTCs are stored.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK FOR DTC
(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) Perform "Health Check" and check for current DTCs Health Check.
Result
B -- INSPECT MAP LIGHT ASSEMBLY (MANUAL [SOS] SWITCH RED INDICATOR CONDITION)
A -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - BODY GROUND)
(a) Remove the map light assembly with the connector connected Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. INSPECT MAP LIGHT ASSEMBLY (RED INDICATOR)
(a) Disconnect the X4 and X6 map light assembly connectors.
(b) Connect 2 dry-cell batteries (1.5 V each) in series.
(c) Connect the positive (+) lead of the battery to terminal X6-4 (IND1) and the negative (-) lead to terminal X4-16 (GND9) of the map light assembly connectors.
(d) Check if the manual (SOS) switch red indicator comes on.
OK:
Red indicator comes on.
Text in Illustration
NG -- REPLACE MAP LIGHT ASSEMBLY Removal
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (DCM - MAP LIGHT ASSEMBLY)
(a) Remove the DCM (telematics transceiver) with the connector connected Removal.
(b) Remove the map light assembly with the connector connected Removal.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. REPLACE DCM (TELEMATICS TRANSCEIVER)
(a) Replace the DCM (telematics transceiver) Removal.
NOTICE:
* The engine switch must be off.
* Do not replace the DCM (telematics transceiver) with one from another vehicle.
NEXT -- PERFORM DCM ACTIVATION DCM Activation
6. INSPECT MAP LIGHT ASSEMBLY (MANUAL [SOS] SWITCH RED INDICATOR CONDITION)
(a) Confirm the red indicator status after the engine switch is turned on (IG) System Description.
Result
B -- REPLACE DCM (TELEMATICS TRANSCEIVER)
A -- Continue to next step.
7. CHECK MAP LIGHT ASSEMBLY (RED INDICATOR INPUT VOLTAGE)
(a) Remove the map light assembly with the connector connected Removal.
(b) Connect the positive lead of a voltmeter to terminal X6-4 (IND1) and the negative lead to terminal X4-16 (GND9).
(c) Measure the voltage.
OK:
1.0 to 8.5 V in 2 seconds after the engine switch is turned on (IG).
0 V when the engine switch is turned off.
Text in Illustration
NG -- CHECK DCM (TELEMATICS TRANSCEIVER) (RED INDICATOR OUTPUT VOLTAGE)
OK -- REPLACE MAP LIGHT ASSEMBLY Removal
8. CHECK DCM (TELEMATICS TRANSCEIVER) (RED INDICATOR OUTPUT VOLTAGE)
(a) Remove the DCM (telematics transceiver) with the connector connected Removal.
(b) Connect the positive lead of a voltmeter to terminal L111-11 (IND1) and the negative lead to body ground.
(c) Measure the voltage.
OK:
1.0 to 8.5 V in 2 seconds after the engine switch is turned on (IG).
0 V when the engine switch is turned off.
Text in Illustration
NG -- CHECK HARNESS AND CONNECTOR (DCM - BODY GROUND)
OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR
9. CHECK HARNESS AND CONNECTOR (DCM - BODY GROUND)
(a) Remove the DCM (telematics transceiver) with the connector connected Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
10. REPLACE DCM (TELEMATICS TRANSCEIVER)
(a) Replace the DCM (telematics transceiver) Removal.
NOTICE:
* The engine switch must be off.
* Do not replace the DCM (telematics transceiver) with one from another vehicle.
NEXT -- PERFORM DCM ACTIVATION DCM Activation