B1571
CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM: B1571: Manual (SOS) Switch Green Indicator Malfunction
B1571 - Manual (SOS) Switch Green Indicator Malfunction
DESCRIPTION
This DTC is stored when the DCM (telematics transceiver) detects an open or short in the manual (SOS) switch green indicator circuit of the manual (SOS) switch. The manual (SOS) switch green indicator illuminates after the power switch is turned on (IG).
If the Safety Connect System is not active, the manual (SOS) switch green indicator will turn off.
If the Safety Connect System is active, the manual (SOS) switch green indicator will blink while the system is in communicating with the call center.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK FOR DTC
(a) Turn the power switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG) and wait for 10 seconds.
(d) Perform "Health Check" and check for current DTCs Health Check.
Result
B -- CHECK MAP LIGHT ASSEMBLY (MANUAL [SOS] SWITCH GREEN 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 (GREEN 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 X6-5 (IND2) and the negative (-) lead to terminal X4-16 (GND9) of the map light assembly connectors.
(d) Check if the manual (SOS) switch green indicator comes on.
OK:
Green 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 power switch must be off.
* Do not replace the DCM (telematics transceiver) with one from another vehicle.
NEXT -- PERFORM DCM ACTIVATION DCM Activation
6. CHECK MAP LIGHT ASSEMBLY (MANUAL [SOS] SWITCH GREEN INDICATOR CONDITION)
(a) Confirm the green indicator status after the power switch is turned on (IG) Safety Connect System.
Result
B -- REPLACE DCM (TELEMATICS TRANSCEIVER)
A -- Continue to next step.
7. CHECK MAP LIGHT ASSEMBLY (GREEN INDICATOR INPUT VOLTAGE)
(a) Remove the map light assembly with the connectors connected Removal.
(b) Connect the positive lead of a voltmeter to terminal X6-5 (IND2) 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 power switch is turned on (IG).
0 V when the power switch is turned off.
Text in Illustration
NG -- CHECK DCM (TELEMATICS TRANSCEIVER) (GREEN INDICATOR OUTPUT VOLTAGE)
OK -- REPLACE MAP LIGHT ASSEMBLY Removal
8. CHECK DCM (TELEMATICS TRANSCEIVER) (GREEN INDICATOR OUTPUT VOLTAGE)
(a) Remove the DCM (telematics transceiver) with the connector connected Removal.
(b) Connect the positive lead of a voltmeter to terminal L127-12 (IND2) and the negative lead to body ground.
(c) Measure the voltage.
OK:
1.0 to 8.5 V in 2 seconds after the power switch is turned on (IG).
0 V when the power 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 power switch must be off.
* Do not replace the DCM (telematics transceiver) with one from another vehicle.
NEXT -- PERFORM DCM ACTIVATION DCM Activation