Safety Connect System (Diagnostic Codes & Symptom Tests): Overview Lexus RX III

DESCRIPTION

This DTC is set 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.

HINT

The manual (SOS) switch red indicator will not operate to indicate another DTC is set, therefore a voice guidance will be heard.

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1. CHECK DTC Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Perform "HEALTH CHECK" and check for current DTCs. Refer to «HEALTH CHECK»(ref-400665-S27351626632011051800000) . Result Result Proceed to DTC B1570, B1571 and B15C5 are output A DTC B1570 is output (DTC B1571 and B15C5 are not output) B B --> See step 5 A: Go to next step
2. INSPECT MAP LIGHT ASSEMBLY (RED INDICATOR) Disconnect the T10 map light assembly connector. Connect 2 dry-cell batteries (1.5 V each) in series. Connect the positive (+) lead to terminal T10-4 (IND1) and the negative (-) lead to terminal T10-7 (GND3) of the map light assembly connectors. Check if the illumination for the manual (SOS) switch red indicator comes on. OK Red indicator comes on. TEXT IN ILLUSTRATION *1 Component without harness connected (Map Light Assembly) NG --> See step 10 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the G25 DCM (Telematics Transceiver) connector. Disconnect the T10 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-26 (SIG-) - T10-7 (GND3) Always Below 1 ohms G25-26 (SIG-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to DCM (Telematics Transceiver)) *2 Front view of wire harness connector (to Map Light Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 11
5. INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH RED INDICATOR CONDITION) Confirm the red indicator status after the engine switch on (IG). Refer to «SYSTEM DESCRIPTION»(ref-400665-S15029371872011051800000) . Result Result Proceed to Red indicator remains off. A Red indicator remains on. B B --> See step 9 A: Go to next step
6. INSPECT MAP LIGHT ASSEMBLY (RED INDICATOR INPUT VOLTAGE) Remove the map light assembly but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S30635620872011051800000) . Connect the positive lead of a voltmeter to terminal T10-4 (IND1), and the negative lead to terminal T10-7 (GND3). Measure the voltage. Standard 1.0 to 8.5 V for 2 seconds after the engine switch is on (IG). 0 V when the engine switch is off. TEXT IN ILLUSTRATION *1 Component with harness connected (Map Light Assembly) NG --> See step 7 OK --> See step 10
7. INSPECT DCM (TELEMATICS TRANSCEIVER) (RED INDICATOR OUTPUT VOLTAGE) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . Connect the positive lead of a voltmeter to terminal G25-11 (IND1), and the negative lead to body ground. Measure the voltage. Standard 1.0 to 8.5 V for 2 seconds after the engine switch is on (IG). 0 V when the engine switch is off. TEXT IN ILLUSTRATION *1 Component with harness connected (DCM (Telematics Transceiver)) NG --> See step 8 OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR
8. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BODY GROUND) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-11 (IND1) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component with harness connected (DCM (Telematics Transceiver)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
9. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 11
10. REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL»(ref-400886-S30635620872011051800000)
11. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION»(ref-400665-S04857114842011051800000)

This DTC is set 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 engine 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 communicating with call center.

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1. CHECK DTC Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Perform "HEALTH CHECK" and check for current DTCs. Refer to «HEALTH CHECK»(ref-400665-S27351626632011051800000) . Result Result Proceed to DTC B1570, B1571 and B15C5 are output A DTC B1571 is output (DTC B1570 and B15C5 are not output) B B --> See step 5 A: Go to next step
2. INSPECT MAP LIGHT ASSEMBLY (GREEN INDICATOR) Disconnect the T10 map light assembly connector. Connect 2 dry-cell batteries (1.5 V each) in series. Connect the positive (+) lead to terminal T10-6 (IND2) and the negative (-) lead to terminal T10-7 (GND3) of the map light assembly connectors. Check if the illumination for the manual (SOS) switch green indicator comes on. OK Green indicator comes on. TEXT IN ILLUSTRATION *1 Component without harness connected (Map Light Assembly) NG --> See step 10 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the G25 DCM (Telematics Transceiver) connector. Disconnect the T10 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-26 (SIG-) - T10-7 (GND3) Always Below 1 ohms G25-26 (SIG-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to DCM (Telematics Transceiver)) *2 Front view of wire harness connector (to Map Light Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 11
5. INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH GREEN INDICATOR CONDITION) Confirm the green indicator status after the engine switch on (IG). Refer to «SYSTEM DESCRIPTION»(ref-400665-S15029371872011051800000) . Result Result Proceed to Green indicator remains off. A Green indicator remains on. B B --> See step 9 A: Go to next step
6. INSPECT MAP LIGHT ASSEMBLY (GREEN INDICATOR INPUT VOLTAGE) Remove the map light assembly but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S30635620872011051800000) . Connect the positive lead of a voltmeter to terminal T10-6 (IND2), and the negative lead to terminal T10-7 (GND3). Measure the voltage. Standard 1.0 to 8.5 V for 2 seconds after the engine switch is on (IG) and red indicator has turned off. 0 V when the engine switch is off. TEXT IN ILLUSTRATION *1 Component with harness connected (Map Light Assembly) NG --> See step 7 OK --> See step 10
7. INSPECT DCM (TELEMATICS TRANSCEIVER) (GREEN INDICATOR OUTPUT VOLTAGE) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . Connect the positive lead of a voltmeter to terminal G25-12 (IND2), and the negative lead to body ground. Measure the voltage. Standard 1.0 to 8.5 V for 2 seconds after the engine switch is on (IG) and red indicator has turned off. 0 V when the engine switch is off. TEXT IN ILLUSTRATION *1 Component with harness connected (DCM (Telematics Transceiver)) NG --> See step 8 OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR
8. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BODY GROUND) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-12 (IND2) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component with harness connected (DCM (Telematics Transceiver)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
9. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 11
10. REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL»(ref-400886-S30635620872011051800000)
11. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION»(ref-400665-S04857114842011051800000)

This DTC is set when the DCM (Telematics Transceiver) detects a malfunction in the telephone microphone assembly circuit.

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1. CHECK DTC Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Perform "HEALTH CHECK" and check for current DTCs. Refer to «HEALTH CHECK»(ref-400665-S27351626632011051800000) . Result Result Proceed to DTC B1572 is output A DTC B1572 is not output B B --> See step 7 A: Go to next step
2. INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE POWER SOURCE) Remove the map light assembly but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S30635620872011051800000) . Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition T10-33 (MACC) - Body ground Engine switch on (ACC) 4 to 6 V TEXT IN ILLUSTRATION *1 Component with harness connected (Map Light Assembly) NG --> See step 5 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the G25 DCM (Telematics Transceiver) connector. Disconnect the T10 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-34 (MCI+) - T10-34 (MCO+) Always Below 1 ohms G25-35 (MCI-) - T10-35 (MCO-) Always Below 1 ohms G25-34 (MCI+) - Body ground Always 10 kohms or higher G25-35 (MCI-) - Body ground Always 10 kohms or higher G25-32 (SGND) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to DCM (Telematics Transceiver)) *2 Front view of wire harness connector (to Map Light Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. REPLACE TELEPHONE MICROPHONE ASSEMBLY Replace the telephone microphone assembly with a normal one and check if the same problem occurs again. Refer to «REMOVAL»(ref-400886-S02541705822011051800000) . OK The system returns to normal. NG --> See step 8 OK --> END
5. INSPECT DCM (TELEMATICS TRANSCEIVER) (TELEPHONE MICROPHONE POWER SOURCE) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition G25-33 (MCVD) - Body ground Engine switch on (ACC) 4 to 6 V TEXT IN ILLUSTRATION *1 Component with harness connected (DCM (Telematics Transceiver)) NG --> See step 6 OK --> REPAIR OR REPLACE HARNESS OR CONNECTOR
6. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 9
7. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
8. REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL»(ref-400886-S30635620872011051800000)
9. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION»(ref-400665-S04857114842011051800000)

This DTC is set when the DCM (Telematics Transceiver) detects an open or a short in the telephone and GPS antenna circuit. The DCM (Telematics Transceiver) oscillates and receives 824 - 894 MHz or 1850 - 1990 MHz radio-frequency through the telephone and GPS antenna assembly.

HINT

Refer to "PARTS LOCATION" for the installation location of telephone and GPS antenna cord. Refer to PARTS LOCATION .

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1. CHECK DTC Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Perform "HEALTH CHECK" and check for current DTCs. Refer to «HEALTH CHECK»(ref-400665-S27351626632011051800000) . Result Result Proceed to DTC B1573 or B15CB is output A DTC B1573 or B15CB is not output B B --> See step 8 A: Go to next step
2. INSPECT TELEPHONE AND GPS ANTENNA ASSEMBLY Disconnect the telephone and GPS antenna assembly connector from the telephone and GPS antenna cord (No. 4 antenna cord sub-assembly). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 3a Always 4 to 11 kohms TEXT IN ILLUSTRATION *1 Telephone and GPS Antenna Assembly NG --> See step 12 OK: Go to next step
3. INSPECT TELEPHONE AND GPS ANTENNA CORDS (NO. 4 ANTENNA CORD SUB-ASSEMBLY) Disconnect the telephone and GPS antenna cord (No. 4 antenna cord sub-assembly) connector from the telephone and GPS antenna cord (No. 5 antenna cord sub-assembly). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A-3 - B-2 Always Below 1 ohms A-3a - B-2a Always Below 1 ohms A-3 - Body ground Always 10 kohms or higher A-3a - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Telephone and GPS Antenna Cord (No. 4 Antenna Cord Sub-assembly) NG --> See step 11 OK: Go to next step
4. INSPECT TELEPHONE AND GPS ANTENNA CORDS (NO. 5 ANTENNA CORD SUB-ASSEMBLY) Disconnect the telephone and GPS antenna cord (No. 5 antenna cord sub-assembly) connector from the No. 2 instrument panel wire (antenna cord sub-assembly). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C-2 - D-2 Always Below 1 ohms C-2a - D-2a Always Below 1 ohms C-2 - Body ground Always 10 kohms or higher C-2a - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Telephone and GPS Antenna Cord (No. 5 Antenna Cord Sub-assembly) NG --> See step 10 OK: Go to next step
5. INSPECT TELEPHONE AND GPS ANTENNA CORDS (NO. 2 INSTRUMENT PANEL WIRE) Disconnect the No. 2 instrument panel wire (antenna cord sub-assembly) connector from the DCM (Telematics Transceiver). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E-2 - F-1 Always Below 1 ohms E-2a - F-1a Always Below 1 ohms E-2 - Body ground Always 10 kohms or higher E-2a - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Telephone and GPS Antenna Cord (No. 2 Instrument Panel Wire) NG --> REPLACE NO. 2 INSTRUMENT PANEL WIRE (ANTENNA CORD SUB-ASSEMBLY) OK: Go to next step
6. REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY Replace the telephone and GPS antenna assembly with a normal one and check if the same problem occurs again. Refer to «REMOVAL»(ref-400886-S35527990562011051800000) . OK The system returns to normal. NG --> See step 7 OK --> END
7. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 9
8. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
9. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION»(ref-400665-S04857114842011051800000)
10. REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 5 ANTENNA CORD SUB-ASSEMBLY). Refer to «REMOVAL»(ref-400886-S12794594952011051800000)
11. REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 4 ANTENNA CORD SUB-ASSEMBLY). Refer to «REMOVAL»(ref-400886-S12794594952011051800000)
12. REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY. Refer to «REMOVAL»(ref-400886-S35527990562011051800000)

If GPS satellite signals cannot be acquired for 10 consecutive miles, this DTC is set.

This DTC is set when an error in the EEPROM or PLL IC is detected on the DCM (Telematics Transceiver) self-check. The EEPROM (Electrically Erasable Programmable Read-Only Memory) stores the various data to operate the Safety Connect system. The PLL IC (Phase-Locked Loop Integrated Circuit) oscillates telephone radio frequency.

This DTC is set when the DCM (Telematics Transceiver) detects an open or a short in the telephone and GPS antenna circuit. The DCM (Telematics Transceiver) receives 1574.42 - 1576.42 MHz radio frequency signal from satellites through the telephone and GPS antenna assembly. The cable is a 50 ohms coaxial cable.

HINT

Refer to "PARTS LOCATION" for the installation location of telephone and GPS antenna cord. Refer to PARTS LOCATION .

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1. CHECK DTC Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Perform "HEALTH CHECK" and check for current DTCs. Refer to «HEALTH CHECK»(ref-400665-S27351626632011051800000) . Result Result Proceed to DTC B15C0 or B15C1 is output A DTC B15C0 or B15C1 is not output B B --> See step 7 A: Go to next step
2. INSPECT TELEPHONE AND GPS ANTENNA CORDS (NO. 2 INSTRUMENT PANEL WIRE) Disconnect the No. 2 instrument panel wire (antenna cord sub-assembly) connector from the DCM (Telematics Transceiver). Disconnect the No. 2 instrument panel wire (antenna cord sub-assembly) connector from the telephone and GPS antenna cord (No. 5 antenna cord sub-assembly). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A-1 - B-1 Always Below 1 ohms A-1a - B-1a Always Below 1 ohms A-1 - Body ground Always 10 kohms or higher A-1a - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Telephone and GPS Antenna Cord (No. 2 Instrument Panel Wire) NG --> REPLACE NO. 2 INSTRUMENT PANEL WIRE (ANTENNA CORD SUB-ASSEMBLY) OK: Go to next step
3. INSPECT TELEPHONE AND GPS ANTENNA CORDS (NO. 5 ANTENNA CORD SUB-ASSEMBLY) Disconnect the telephone and GPS antenna cord (No. 5 antenna cord sub-assembly) connector from the telephone and GPS antenna cord (No. 4 antenna cord sub-assembly). Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition C-1 - D-1 Always Below 1 ohms C-1a - D-1a Always Below 1 ohms C-1 - Body ground Always 10 kohms or higher C-1a - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Telephone and GPS Antenna Cord (No. 5 Antenna Cord Sub-assembly) NG --> See step 9 OK: Go to next step
4. INSPECT TELEPHONE AND GPS ANTENNA CORDS (NO. 4 ANTENNA CORD SUB-ASSEMBLY) Disconnect the telephone and GPS antenna cord (No. 4 antenna cord sub-assembly) connector from the telephone and GPS antenna assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition E-2 - F-1 Always Below 1 ohms E-2a - F-1a Always Below 1 ohms E-2 - Body ground Always 10 kohms or higher E-2a - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Telephone and GPS Antenna Cord (No. 4 Antenna Cord Sub-assembly) NG --> See step 10 OK: Go to next step
5. REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY Replace the telephone and GPS antenna assembly with a normal one and check if the same problem occurs again. Refer to «REMOVAL»(ref-400886-S35527990562011051800000) . OK The system returns to normal. NG --> See step 6 OK --> END
6. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 8
7. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
8. PERFORM DCM ACTIVATION. Refer to «REMOVAL»(ref-400886-S38027696782011051800000)
9. REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 5 ANTENNA CORD SUB-ASSEMBLY). Refer to «REMOVAL»(ref-400886-S12794594952011051800000)
10. REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 4 ANTENNA CORD SUB-ASSEMBLY). Refer to «REMOVAL»(ref-400886-S12794594952011051800000)

If the DCM (Telematics Transceiver) detects an error in communication between the DCM (Telematics Transceiver) and the center airbag sensor assembly as a result of the DCM (Telematics Transceiver) self check, this DTC will be set.

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1. CHECK DTC (AIRBAG SYSTEM) Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Check the DTC of "AIRBAG SYSTEM". Refer to «DTC CHECK / CLEAR»(ref-400811-S31749659202011051800000) . Result Result Proceed to DTC is not output A DTC is output B B --> See step 9 A: Go to next step
2. INSPECT DCM (TELEMATICS TRANSCEIVER) (GSW SIGNAL) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition G25-24 (GSW) - Body ground Engine switch on (IG) 6.5 to 8.5 V TEXT IN ILLUSTRATION *1 Component with harness connected (DCM (Telematics Transceiver)) REFERENCE WAVEFORM Item Condition Tester connection G25-24 (GSW) - Body ground Tool setting 5.0 V/DIV., 20 ms/DIV. Vehicle condition Engine switch on (IG) Result Result Proceed to 8.5 V or higher A Below 6.5 V B 6.5 to 8.5 V C C --> See step 5 B --> See step 4 A: Go to next step
3. CHECK HARNESS AND CONNECTOR (FOR OPEN CIRCUIT) Remove the center airbag sensor assembly but do not disconnect the connectors. Refer to «REMOVAL»(ref-400651-S11108468782011051800000) . Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition F29-24 (GSW3) - Body ground Engine switch on (IG) 8.5 V or higher TEXT IN ILLUSTRATION *1 Component with harness connected (Center Airbag Sensor Assembly) REFERENCE WAVEFORM Item Condition Tester connection F29-24 (GSW3) - Body ground Tool setting 5.0 V/DIV., 20 ms/DIV. Vehicle condition Engine switch on (IG) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
4. CHECK HARNESS AND CONNECTOR (FOR SHORT CIRCUIT) Disconnect the G25 DCM (Telematics Transceiver) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-24 (GSW) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to DCM (Telematics Transceiver)) NG --> See step 6 OK: Go to next step
5. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 8
6. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - CENTER AIRBAG SENSOR ASSEMBLY) Disconnect the G25 DCM (Telematics Transceiver) connector. Disconnect the F29 center airbag sensor connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-24 (GSW) - F29-24 (GSW3) Always Below 1 ohms G25-24 (GSW) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to DCM (Telematics Transceiver)) *2 Front view of wire harness connector (to Center Airbag Sensor Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 7
7. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to «REMOVAL»(ref-400651-S11108468782011051800000)
8. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION»(ref-400665-S04857114842011051800000)
9. GO TO AIRBAG SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-400811-S02490402752011051800000)

This DTC is set when the DCM (Telematics Transceiver) detects an open or short circuit in the manual (SOS) switch.

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1. CHECK DTC Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Perform "HEALTH CHECK" and check for current DTCs. Refer to «HEALTH CHECK»(ref-400665-S27351626632011051800000) . Result Result Proceed to DTC B1570, B1571 and B15C5 are output A DTC B15C5 is output (DTC B1570 and B1571 are not output) B B --> See step 5 A: Go to next step
2. INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH) Disconnect the T10 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition T10-3 (SIG1) - T10-7 (GND3) Manual (SOS) switch not pressed 410 to 414 ohms T10-3 (SIG1) - T10-7 (GND3) Manual (SOS) switch pressed 81 to 83 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Map Light Assembly) NG --> See step 14 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the G25 DCM (Telematics Transceiver) connector. Disconnect the T10 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-26 (SIG-) - T10-7 (GND3) Always Below 1 ohms G25-26 (SIG-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to DCM (Telematics Transceiver)) *2 Front view of wire harness connector (to Map Light Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 13
5. READ VALUE USING TECHSTREAM (MANUAL (SOS) SWITCH OPERATION) Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Enter the following menus: Body Electrical / Telematics / Data List. Check that the manual (SOS) switch condition observed on the Techstream changes according to manual (SOS) switch operation. TELEMATICS (DCM (TELEMATICS TRANSCEIVER)) Tester Display Measurement Item/Range Normal Condition Diagnostic Note Emergency Switch Manual (SOS) switch / OFF or ON OFF: Manual (SOS) switch not pressed - ON: Manual (SOS) switch pressed - Result Result Proceed to Techstream display changes when turning the manual (SOS) switch ON/OFF. A Techstream display does not change when turning the manual (SOS) switch ON/OFF. B B --> See step 8 A: Go to next step
6. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 7
7. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION»(ref-400665-S04857114842011051800000)
8. INSPECT DCM (TELEMATICS TRANSCEIVER) (SIG1 VOLTAGE) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition G25-27 (SIG1) - G25-26 (SIG-) Engine switch on (IG), manual (SOS) switch not pressed 1.5 to 2.0 V TEXT IN ILLUSTRATION *1 Component with harness connected (DCM (Telematics Transceiver)) NG --> See step 10 OK: Go to next step
9. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 13
10. INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH) Disconnect the T10 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition T10-3 (SIG1) - T10-7 (GND3) Manual (SOS) switch not pressed 410 to 414 ohms T10-3 (SIG1) - T10-7 (GND3) Manual (SOS) switch pressed 81 to 83 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Map Light Assembly) NG --> See step 14 OK: Go to next step
11. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the G25 DCM (Telematics Transceiver) connector. Disconnect the T10 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-27 (SIG1) - T10-3 (SIG1) Always Below 1 ohms G25-27 (SIG1) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to DCM (Telematics Transceiver)) *2 Front view of wire harness connector (to Map Light Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
12. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 13
13. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION»(ref-400665-S04857114842011051800000)
14. REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL»(ref-400886-S30635620872011051800000)

This DTC is set when the DCM (Telematics Transceiver) detects one of the following

1. Open or short in the BUB (Back-Up Battery) circuit.
2. The BUB (Back-Up Battery) voltage drops or the BUB (Back-Up Battery) malfunctions.
3. The BUB (Back-Up Battery) temperature is (temporarily) high.

Scheme 561

Scheme 562

1. CHECK DTC Turn the engine switch off. Connect the Techstream to the DLC3. Turn the engine switch on (IG) and wait for 10 seconds. Turn the Techstream on. Perform "HEALTH CHECK" and check for current DTCs. Refer to «HEALTH CHECK»(ref-400665-S27351626632011051800000) . Result Result Proceed to DTC B15CC is output A DTC B15CC is not output B B --> See step 7 A: Go to next step
2. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BUB (BACK-UP BATTERY)) Disconnect the G25 DCM (Telematics Transceiver) connector. Disconnect the G26 BUB (Back-Up Battery) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-30 (BBI+) - G26-1 (BBO+) Always Below 1 ohms G25-13 (BBI-) - G26-5 (BBO-) Always Below 1 ohms G25-20 (CTR1) - G26-3 (BTR1) Always Below 1 ohms G25-21 (CTR2) - G26-4 (BTR2) Always Below 1 ohms G25-30 (BBI+) - Body ground Always 10 kohms or higher G25-13 (BBI-) - Body ground Always 10 kohms or higher G25-20 (CTR1) - Body ground Always 10 kohms or higher G25-21 (CTR2) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to DCM (Telematics Transceiver)) *2 Front view of wire harness connector (to BUB (Back-Up Battery)) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. REPLACE BUB (BACK-UP BATTERY) Replace the BUB (Back-Up Battery) with a normal one and check if the same problem occurs again. Refer to «REMOVAL»(ref-400886-S17221621662011051800000) . NOTE: The BUB (Back-Up Battery) must not be replaced while an ACN call is in progress. NEXT: Go to next step
4. CLEAR DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-400665-S30809796722011051800000) . NEXT: Go to next step
5. RECHECK DTC Recheck for DTCs and check if the same trouble occurs again. Refer to «DTC CHECK / CLEAR»(ref-400665-S30809796722011051800000) . OK No DTC is output. NG --> See step 6 OK --> END
6. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL»(ref-400886-S38027696782011051800000) . NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. NEXT --> See step 8
7. CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-400649-S16126263452011051800000)
8. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION»(ref-400665-S04857114842011051800000)

This DTC is set when the DCM (Telematics Transceiver) detects either of the following conditions.

1. The BUB (Back-Up Battery) charge level becomes less than the criteria.
2. Automatic Collision Notification (ACN) occurred.

When this DTC is set, the BUB (Back-Up Battery) must be replaced.

BUB (Back-Up Battery) degradation DTC B15EC is not reported in deactive mode.

This is the power source circuit to operate the DCM (Telematics Transceiver).

Scheme 563

After the engine switch on (IG), the DCM (Telematics Transceiver) will enter into a self check mode. The manual (SOS) switch red indicator will illuminate for 2 seconds and turn off followed by the manual (SOS) switch green indicator illuminating and remaining on under normal operation.

If both indicators illuminate and begin to blink simultaneously, this indicates that the DCM (Telematics Transceiver) is in "Shipping Mode." If no DTCs are present, both the green and red indicators will turn off after blinking. The activation sequence must be performed.

HINT

In shipping mode, the system will attempt to activate to shell mode automatically at each engine switch on (IG).

If the red and green indicators fail to illuminate after the engine switch on (IG), the vehicle does not recognize the DCM (Telematics Transceiver). The DCM (Telematics Transceiver) connectors may have been disconnected or the DCM (Telematics Transceiver) is malfunctioning.

After the engine switch on (IG), the DCM (Telematics Transceiver) will enter into a self check mode. The manual (SOS) switch red indicator will illuminate for 2 seconds and turn off followed by the manual (SOS) switch green indicator illuminating and remaining on under normal operation. If neither the red nor green indicators remain on, verification of the subscription should be performed.

When the red indicator remains on, this means that the DCM (Telematics Transceiver) has detected a malfunction in the Safety Connect system and set a DTC.

This may occur when the intensity of telephone radio frequency was very weak, PRL updates are required, or the Safety Connect system has a malfunction and a DTC is set.