Toyota RAV4 manuals

Toyota Sienna Service Manual: SRS Warning Light does not Come ON

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK BATTERY

  1. Measure the voltage of the battery.

Standard voltage: 11 to 14 V

CHECK AND REPLACE BATTERY OR CHARGING SYSTEM

2 CHECK CONNECTORS

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

OK: The connectors are properly connected.

CONNECT CONNECTORS

3 CHECK WIRE HARNESS (SOURCE VOLTAGE OF COMBINATION METER ASSEMBLY)

 CHECK WIRE HARNESS (SOURCE VOLTAGE OF COMBINATION METER ASSEMBLY)

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

Standard voltage

Standard voltage

  1. Turn the ignition switch to the LOCK position.
  2.  Measure the resistance according to the value(s) in the table below.

Standard Resistance

Standard Resistance

REPAIR OR REPLACE WIRE HARNESS

4 CHECK SRS WARNING LIGHT

  1. Turn the ignition switch to the LOCK position.
  2.  Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
  3.  Connect the connector to the combination meter assembly.
  4.  Disconnect the connector from the center airbag sensor assembly.
  5.  Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
  6.  Turn the ignition switch to the ON position.
  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 the ON position.

REPLACE COMBINATION METER ASSEMBLY

REPLACE CENTER AIRBAG SENSOR ASSEMBLY

SRS Warning Light Remains ON
DESCRIPTION The SRS warning light is located on the combination meter assembly. When the SRS is normal, the SRS warning light comes on for approximately 6 seconds after the ignition switch is t ...

Diagnosis Circuit
DESCRIPTION DTC output mode is set by connecting terminals TC and CG of the DLC3. DTCs are displayed by blinking the SRS warning light. HINT:  When each warning light stays blinking, a g ...

Other materials:

Removal
1. REMOVE FRONT WHEEL 2. REMOVE REAR WHEEL 3. REMOVE TIRE PRESSURE WARNING VALVE AND TRANSMITTER (a) Remove the valve core and cap, and release the air from the tire. (b) After ensuring that a sufficient amount of air has been released, remove the nut and washer that are used to secure ...

Removal
1. REMOVE BATTERY (See page EM-26) 2. REMOVE NO. 2 AIR CLEANER INLET (See page EM- 28) 3. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See page FU-13) 4. REMOVE AIR CLEANER FILTER ELEMENT (See page EM-28) 5. REMOVE AIR CLEANER CASE SUB-ASSEMBLY (See page EM-28) 6. REMOVE AIR CLEANER BRACKET (a ...

Disassembly
HINT: Overhaul the RH side by the same procedures as these of the LH side. 1. REMOVE REAR WHEEL 2. SEPARATE REAR DISC BRAKE CALIPER ASSEMBLY LH HINT: Do not disconnect the flexible hose from the brake caliper. 3. REMOVE REAR DISC (a) Release the parking brake, and remove the rear disc. H ...

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