SRS Warning Light does not Come ON [08/2015 - 08/2017]: Procedure

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   Battery	Always	11 to 14 V

Result: 

NG 

CHECK AND REPLACE BATTERY OR CHARGING SYSTEM 

Result: 

OK 

See step  2

1. Turn the ignition switch off.
2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
3. Check that the connectors are properly connected to the combination meter.

   OK

   The connectors are properly connected.

Result: 

NG 

CONNECT CONNECTOR PROPERLY 

Result: 

OK 

See step  3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Turn the ignition switch off.
2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
3. Disconnect the connector from the combination meter.
4. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
5. Turn the ignition switch to ON.
6. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   H37-20 (IG+) - H37-40 (E1)	Ignition switch ON	11 to 14 V

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

1. Turn the ignition switch off.
2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
3. Disconnect the connectors from the center airbag sensor.
4. Connect the connector to the combination meter.
5. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
6. Turn the ignition switch to ON.
7. Check the SRS warning light condition.

   OK

   After the primary check period, SRS warning light goes off for approximately 10 seconds and remains on.

   HINT: 

   The primary check period is approximately 6 seconds after the ignition switch is turned to ON.

Result: 

OK 

REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

(Refer to REMOVAL [08/2015 - 08/2017] )

Result: 

NG 

REPLACE COMBINATION METER 

(Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2017] )