DTC B15C5: Manual Button Malfunction [10/2014 - ]: Procedure

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG) and wait for 10 seconds.
4. Turn the Techstream on.
5. Perform "Health Check" and check for current DTCs (Refer to HEALTH CHECK [10/2014 - ] ).

   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: 

B 

See step  6

Result: 

A 

See step  2

1. Disconnect the N6 roof console box assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N6-20 (SIG1) - N6-16 (GND3)	Manual (SOS) switch not pressed	410 to 414 Ω
   N6-20 (SIG1) - N6-16 (GND3)	Manual (SOS) switch pressed	81 to 83 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Roof Console Box Assembly)

Result: 

NG 

REPLACE ROOF CONSOLE BOX ASSEMBLY 

(Refer to REMOVAL [10/2014 - ] )

Result: 

OK 

See step  3

1. Disconnect the E11 DCM (Telematics Transceiver) connector.
2. Disconnect the N6 roof console box assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E11-26 (SIG-) - N6-16 (GND3)	Always	Below 1 Ω
   E11-26 (SIG-) - Body ground	Always	10 kΩ or higher
   E11-27 (SIG1) - N6-20 (SIG1)	Always	Below 1 Ω
   E11-27 (SIG1) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. Replace the DCM (Telematics Transceiver) (Refer to REMOVAL [10/2014 - ] ).
   NOTE:

   • The engine switch must be off.
   • Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

Result: 

NEXT 

See step  5

1. Perform "PRL UPDATE" (Refer to PRL UPDATE [10/2014 - ] ).

Result: 

NEXT 

PERFORM DCM ACTIVATION 

(Refer to DCM ACTIVATION [10/2014 - ] )

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG) and wait for 10 seconds.
4. Turn the Techstream on.
5. Enter the following menus: Body Electrical / Telematics / Data List.
6. Check that the manual (SOS) switch condition observed on the Techstream changes according to manual (SOS) switch operation.
   TELEMATICS
   
   

   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*	-

   • *: 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: 

B 

See step  8

Result: 

A 

See step  7

1. Replace the DCM (Telematics Transceiver) (Refer to REMOVAL [10/2014 - ] ).
   NOTE:

   • The engine switch must be off.
   • Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

Result: 

NEXT 

PERFORM DCM ACTIVATION 

(Refer to DCM ACTIVATION [10/2014 - ] )

1. Remove the DCM (Telematics Transceiver) but do not disconnect the connectors (Refer to REMOVAL [10/2014 - ] ).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   E11-27 (SIG1) - E11-26 (SIG-)	Engine switch on (IG), manual (SOS) switch not pressed	1.5 to 2.0 V

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (DCM (Telematics Transceiver))

Result: 

NG 

See step  11

Result: 

OK 

See step  9

1. Replace the DCM (Telematics Transceiver) (Refer to REMOVAL [10/2014 - ] ).
   NOTE:

   • The engine switch must be off.
   • Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

Result: 

NEXT 

See step  10

1. Perform "PRL UPDATE" (Refer to PRL UPDATE [10/2014 - ] ).

Result: 

NEXT 

PERFORM DCM ACTIVATION 

(Refer to DCM ACTIVATION [10/2014 - ] )

1. Disconnect the N6 roof console box assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N6-20 (SIG1) - N6-16 (GND3)	Manual (SOS) switch not pressed	410 to 414 Ω
   N6-20 (SIG1) - N6-16 (GND3)	Manual (SOS) switch pressed	81 to 83 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Component without harness connected (Roof Console Box Assembly)

Result: 

NG 

REPLACE ROOF CONSOLE BOX ASSEMBLY 

(Refer to REMOVAL [10/2014 - ] )

Result: 

OK 

See step  12

1. Disconnect the E11 DCM (Telematics Transceiver) connector.
2. Disconnect the N6 roof console box assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E11-27 (SIG1) - N6-20 (SIG1)	Always	Below 1 Ω
   E11-27 (SIG1) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  13

1. Replace the DCM (Telematics Transceiver) (Refer to REMOVAL [10/2014 - ] ).
   NOTE:

   • The engine switch must be off.
   • Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

Result: 

NEXT 

See step  14

1. Perform "PRL UPDATE" (Refer to PRL UPDATE [10/2014 - ] ).

Result: 

NEXT 

PERFORM DCM ACTIVATION 

(Refer to DCM ACTIVATION [10/2014 - ] )