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

Entertainment Systems 9 illustrations ~3015 words

DESCRIPTION

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

DTC No.Detection ItemDTC Detection ConditionTrouble Area
B15C5Manual Button MalfunctionOpen or short circuit in manual (SOS) switch is detected.DCM (Telematics Transceiver) Map light assembly Wire harness or connector

Scheme 169

Scheme 169: WIRING DIAGRAM
Scheme 169: WIRING DIAGRAM

Scheme 170

Scheme 170: PROCEDURE
Scheme 170: PROCEDURE
  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 [04/2013 - ]»(ref-665566-S14981125862014102400000) Result Result Proceed to DTC B1570, B1571 and B15C5 are output A DTC B15C5 is output (DTC B1570 and B1571 are not output) B Result: 2 B See step 6 Result: 1 A See step 2
  2. INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH) Disconnect the S4 map light assembly connector. *a Component without harness connected (Map Light Assembly) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 13 (SIG1) - 9 (GND3) Manual (SOS) switch not pressed 410 to 414 ohms 13 (SIG1) - 9 (GND3) Manual (SOS) switch pressed 81 to 83 ohms Result Proceed to OK NG Result: 2 NG REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665840-S31521320372014102400000) Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the K66 DCM (Telematics Transceiver) connector. Disconnect the S4 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K66-26 (SIG-) - S4-9 (GND3) Always Below 1 ohms K66-26 (SIG-) - Body ground Always 10 kohms or higher S4-9 (GND3) - Body ground Always 10 kohms or higher K66-27 (SIG1) - S4-13 (SIG1) Always Below 1 ohms K66-27 (SIG1) - Body ground Always 10 kohms or higher S4-13 (SIG1) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. Result Proceed to NEXT Result: 1 NEXT See step 5
  5. PERFORM PRL UPDATE Perform "PRL UPDATE". Refer to «PRL UPDATE [04/2013 - ]»(ref-665566-S29607148912014102400000) Result Proceed to NEXT Result: 1 NEXT PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [04/2013 - ]»(ref-665566-S36413017352014102400000)
  6. 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. Body Electrical > Telematics > Data List 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* - Body Electrical > Telematics > Data List Tester Display Emergency Switch *: Pressing the manual (SOS) switch will connect to the call center. 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 Result: 2 B See step 9 Result: 1 A See step 7
  7. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. Result Proceed to NEXT Result: 1 NEXT See step 8
  8. PERFORM PRL UPDATE Perform "PRL UPDATE". Refer to «PRL UPDATE [04/2013 - ]»(ref-665566-S29607148912014102400000) Result Proceed to NEXT Result: 1 NEXT PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [04/2013 - ]»(ref-665566-S36413017352014102400000)
  9. INSPECT DCM (TELEMATICS TRANSCEIVER) (SIG1 VOLTAGE) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) *a Component with harness connected (DCM (Telematics Transceiver)) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K66-27 (SIG1) - K66-26 (SIG-) Engine switch on (IG), manual (SOS) switch not pressed 1.5 to 2.0 V Result Proceed to OK NG Result: 2 NG See step 12 Result: 1 OK See step 10
  10. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. Result Proceed to NEXT Result: 1 NEXT See step 11
  11. PERFORM PRL UPDATE Perform "PRL UPDATE". Refer to «PRL UPDATE [04/2013 - ]»(ref-665566-S29607148912014102400000) Result Proceed to NEXT Result: 1 NEXT PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [04/2013 - ]»(ref-665566-S36413017352014102400000)
  12. INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH) Disconnect the S4 map light assembly connector. *a Component without harness connected (Map Light Assembly) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 13 (SIG1) - 9 (GND3) Manual (SOS) switch not pressed 410 to 414 ohms 13 (SIG1) - 9 (GND3) Manual (SOS) switch pressed 81 to 83 ohms Result Proceed to OK NG Result: 2 NG REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665840-S31521320372014102400000) Result: 1 OK See step 13
  13. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the K66 DCM (Telematics Transceiver) connector. Disconnect the S4 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K66-27 (SIG1) - S4-13 (SIG1) Always Below 1 ohms K66-27 (SIG1) - Body ground Always 10 kohms or higher S4-13 (SIG1) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 14
  14. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. Result Proceed to NEXT Result: 1 NEXT See step 15
  15. PERFORM PRL UPDATE Perform "PRL UPDATE". Refer to «PRL UPDATE [04/2013 - ]»(ref-665566-S29607148912014102400000) Result Proceed to NEXT Result: 1 NEXT PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [04/2013 - ]»(ref-665566-S36413017352014102400000)

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

DTC No.Detection ItemDTC Detection ConditionTrouble Area
B15C4Airbag Signal Malfunction/Not InputDCM (Telematics Transceiver) detects an error in signals from airbag sensor assembly when engine switch is on (IG).Airbag system Wire harness or connector Airbag sensor assembly DCM (Telematics Transceiver)

Scheme 171

Scheme 171: WIRING DIAGRAM
Scheme 171: WIRING DIAGRAM

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 signals from satellites through the telephone and GPS antenna assembly. The cable is a 50 ohms coaxial cable.

DTC No.Detection ItemDTC Detection ConditionTrouble Area
B15C0Short in GPS AntennaCurrent for telephone and GPS antenna assembly is lower (ohms) malfunction criterion for 10 seconds when engine switch is on (IG). (Short circuit)DCM (Telematics Transceiver) Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) Telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) Telephone and GPS antenna cord (instrument panel wire) Telephone and GPS antenna assembly
B15C1Open in GPS AntennaCurrent for telephone and GPS antenna assembly is higher (ohms) malfunction criterion for 10 seconds when engine switch is on (IG). (Open circuit)DCM (Telematics Transceiver) Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) Telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) Telephone and GPS antenna cord (instrument panel wire) Telephone and GPS antenna assembly

Scheme 172

Scheme 172: WIRING DIAGRAM
Scheme 172: WIRING DIAGRAM

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.

DTC No.Detection ItemDTC Detection ConditionTrouble Area
B15A8Telematics Transceiver MalfunctionError in EEPROM or PLL IC is detected.DCM (Telematics Transceiver)

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

DTC No.Detection ItemDTC Detection ConditionTrouble Area
B1573Short in Telephone Antenna CircuitTelephone and GPS antenna assembly impedance is lower than malfunction criterion for 10 seconds when engine switch is on (IG). (Short circuit)DCM (Telematics Transceiver) Telephone and GPS antenna assembly Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) Telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) Telephone and GPS antenna cord (instrument panel wire)
B15CBTelematics Transceiver Antenna DisconnectedTelephone and GPS antenna assembly impedance is higher than malfunction criterion for 10 seconds when engine switch is on (IG). (Open circuit)DCM (Telematics Transceiver) Telephone and GPS antenna assembly Telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) Telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) Telephone and GPS antenna cord (instrument panel wire)

Scheme 173

Scheme 173: WIRING DIAGRAM
Scheme 173: WIRING DIAGRAM

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

DTC No.Detection ItemDTC Detection ConditionTrouble Area
B1572Telephone Microphone ErrorCurrent of MCVD reaches malfunction criteria for 10 seconds while engine switch is on (IG).Wire harness or connector Telephone microphone assembly Map light assembly DCM (Telematics Transceiver)

Scheme 174

Scheme 174: WIRING DIAGRAM
Scheme 174: WIRING DIAGRAM

Scheme 175

Scheme 175: PROCEDURE
Scheme 175: PROCEDURE
  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 [04/2013 - ]»(ref-665566-S14981125862014102400000) Result Result Proceed to DTC B1572 is output A DTC B1572 is not output B Result: 2 B CHECK FOR INTERMITTENT PROBLEMS. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000) Result: 1 A See step 2
  2. INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY POWER SOURCE) Remove the map light assembly but do not disconnect the connectors. Refer to «REMOVAL [04/2013 - ]»(ref-665840-S31521320372014102400000) *a Component with harness connected (Map Light Assembly) Measure the voltage and resistance according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition S4-4 (MACC) - Body ground Engine switch on (ACC) 4 to 6 V Standard Resistance Tester Connection Condition Specified Condition S4-2 (MCO-) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG See step 5 Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the K66 DCM (Telematics Transceiver) connector. Disconnect the S4 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K66-34 (MCI+) - S4-3 (MCO+) Always Below 1 ohms K66-34 (MCI+) - Body ground Always 10 kohms or higher S4-3 (MCO+) - Body ground Always 10 kohms or higher K66-35 (MCI-) - S4-2 (MCO-) Always Below 1 ohms K66-35 (MCI-) - Body ground Always 10 kohms or higher S4-2 (MCO-) - Body ground Always 10 kohms or higher K66-32 (SGND) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  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 [04/2013 - ]»(ref-665839-S39562268892014102400000) OK The system returns to normal. Result Proceed to OK NG Result: 1 OK END Result: 2 NG REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665840-S31521320372014102400000)
  5. INSPECT DCM (TELEMATICS TRANSCEIVER) (TELEPHONE MICROPHONE ASSEMBLY POWER SOURCE) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) *a Component with harness connected (DCM (Telematics Transceiver)) Measure the voltage and resistance according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K66-33 (MCVD) - Body ground Engine switch on (ACC) 4 to 6 V Standard Resistance Tester Connection Condition Specified Condition K66-35 (MCI-) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 2 NG See step 6
  6. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. Result Proceed to NEXT Result: 1 NEXT See step 7
  7. PERFORM PRL UPDATE Perform "PRL UPDATE". Refer to «PRL UPDATE [04/2013 - ]»(ref-665566-S29607148912014102400000) Result Proceed to NEXT Result: 1 NEXT PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [04/2013 - ]»(ref-665566-S36413017352014102400000)

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 ItemDTC Detection ConditionTrouble Area
B1570Manual (SOS) Switch Red Indicator MalfunctionCurrent for manual (SOS) switch red indicator reaches malfunction criteria for 10 seconds when engine switch is on (IG).Map light assembly Wire harness or connector DCM (Telematics Transceiver)

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 the call center.

DTC No.Detection ItemDTC Detection ConditionTrouble Area
B1571Manual (SOS) Switch Green Indicator MalfunctionCurrent for manual (SOS) switch green indicator reaches malfunction criteria for 10 seconds when engine switch is on (IG).Map light assembly Wire harness or connector DCM (Telematics Transceiver)

Scheme 176

Scheme 176: PROCEDURE
Scheme 176: PROCEDURE
  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 [04/2013 - ]»(ref-665566-S14981125862014102400000) Result Result Proceed to DTC B1570, B1571 and B15C5 are output A DTC B1571 is output (DTC B1570 and B15C5 are not output) B Result: 2 B See step 6 Result: 1 A See step 2
  2. INSPECT MAP LIGHT ASSEMBLY (GREEN INDICATOR) Disconnect the S4 map light assembly connector. *a Component without harness connected (Map Light Assembly) Connect 2 dry-cell batteries (1.5 V each) in series. Connect the positive (+) lead to terminal 7 (IND2) and the negative (-) lead to terminal 9 (GND3) of the map light assembly connector. Check if the illumination for the manual (SOS) switch green indicator comes on. OK Green indicator comes on. Result Proceed to OK NG Result: 2 NG REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665840-S31521320372014102400000) Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY) Disconnect the K66 DCM (Telematics Transceiver) connector. Disconnect the S4 map light assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K66-26 (SIG-) - S4-9 (GND3) Always Below 1 ohms K66-26 (SIG-) - Body ground Always 10 kohms or higher S4-9 (GND3) - Body ground Always 10 kohms or higher K66-12 (IND2) - S4-7 (IND2) Always Below 1 ohms K66-12 (IND2) - Body ground Always 10 kohms or higher S4-7 (IND2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. Result Proceed to NEXT Result: 1 NEXT See step 5
  5. PERFORM PRL UPDATE Perform "PRL UPDATE". Refer to «PRL UPDATE [04/2013 - ]»(ref-665566-S29607148912014102400000) Result Proceed to NEXT Result: 1 NEXT PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [04/2013 - ]»(ref-665566-S36413017352014102400000)
  6. CHECK MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH GREEN INDICATOR CONDITION) Confirm the green indicator status after the engine switch is turned on (IG). Refer to «SYSTEM DESCRIPTION [04/2013 - ]»(ref-665566-S16686006072014102400000) Result Result Proceed to Green indicator remains off A Green indicator remains on B Result: 2 B See step 10 Result: 1 A See step 7
  7. INSPECT MAP LIGHT ASSEMBLY (GREEN INDICATOR INPUT VOLTAGE) Remove the map light assembly but do not disconnect the connectors. *a Component with harness connected (Map Light Assembly) Refer to «REMOVAL [04/2013 - ]»(ref-665840-S31521320372014102400000) Connect the positive lead of a voltmeter to terminal S4-7 (IND2), and the negative lead to terminal S4-9 (GND3). Measure the voltage. Standard 1.0 to 8.5 V for 2 seconds after the engine switch is turned on (IG) and red indicator has turned off. 0 V when the engine switch is off. Result Proceed to OK NG Result: 1 OK REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665840-S31521320372014102400000) Result: 2 NG See step 8
  8. INSPECT DCM (TELEMATICS TRANSCEIVER) (GREEN INDICATOR OUTPUT VOLTAGE) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. *a Component with harness connected (DCM (Telematics Transceiver)) Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) Connect the positive lead of a voltmeter to terminal K66-12 (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 turned on (IG) and red indicator has turned off. 0 V when the engine switch is off. Result Proceed to OK NG Result: 1 OK REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 2 NG See step 9
  9. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BODY GROUND) Remove the DCM (Telematics Transceiver) but do not disconnect the connectors. *a Component with harness connected (DCM (Telematics Transceiver)) Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K66-12 (IND2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 10
  10. REPLACE DCM (TELEMATICS TRANSCEIVER) Replace the DCM (Telematics Transceiver). Refer to «REMOVAL [04/2013 - ]»(ref-665840-S16836624012014102400000) NOTE: The engine switch must be off. Do not swap the DCM (Telematics Transceiver) with one from another vehicle. Result Proceed to NEXT Result: 1 NEXT See step 11
  11. PERFORM PRL UPDATE Perform "PRL UPDATE". Refer to «PRL UPDATE [04/2013 - ]»(ref-665566-S29607148912014102400000) Result Proceed to NEXT Result: 1 NEXT PERFORM DCM ACTIVATION. Refer to «DCM ACTIVATION [04/2013 - ]»(ref-665566-S36413017352014102400000)

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

Scheme 177

Scheme 177: WIRING DIAGRAM
Scheme 177: WIRING DIAGRAM

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.

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 engine switch on (IG), the DCM (Telematics Transceiver) will enter into 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.

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.

More articles — Safety Connect System (Diagnostic Codes & Symptom Tests)