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

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.

Scheme 421

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.

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

Scheme 422

Scheme 423

Scheme 424

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 [03/2012 - ]»(ref-602568-S20752911192014030500000) . 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 [03/2012 - ]»(ref-602783-S40586866442014030500000) . 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 [03/2012 - ]»(ref-602783-S05334403792014030500000) . 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 [03/2012 - 07/2012]»(ref-602783-S36750580832014030500000) . 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 [03/2012 - 07/2012]»(ref-602783-S36750580832014030500000) . 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 [03/2012 - 07/2012]»(ref-602551-S27510191402014030500000)
8. REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL [03/2012 - ]»(ref-602783-S40586866442014030500000)
9. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [03/2012 - ]»(ref-602568-S31924659552014030500000)

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

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 [03/2012 - ] .

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 [03/2012 - ] .

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 [03/2012 - ] .

Scheme 425

Scheme 426

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 [03/2012 - ]»(ref-602568-S20752911192014030500000) . 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 [03/2012 - ]»(ref-602783-S06752468702014030500000) . 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 [03/2012 - 07/2012]»(ref-602783-S36750580832014030500000) . 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 [03/2012 - 07/2012]»(ref-602551-S27510191402014030500000)
8. PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [03/2012 - ]»(ref-602568-S31924659552014030500000)
9. REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 5 ANTENNA CORD SUB-ASSEMBLY). Refer to «REMOVAL [03/2012 - ]»(ref-602783-S30790716792014030500000)
10. REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 4 ANTENNA CORD SUB-ASSEMBLY). Refer to «REMOVAL [03/2012 - ]»(ref-602783-S30790716792014030500000)

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 [03/2012 - ] .

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.

Scheme 427

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

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 428

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.

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 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 429

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.

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.

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.