Ok Replace Center Airbag Sensor Assembly Dtc B Indicator Light Circuit Malfunction Description

The SRS warning light circuit consists of the center airbag sensor assembly and the combination meter.

When the center airbag sensor assembly detects a malfunction in the SRS airbag system, the SRS warning light comes on to inform the driver It also comes on when the power voltage drops, and automatically goes off in approximately 10 seconds after the power voltage returns to normal (DTC is not stored).

The SRS warning light comes on for 6 seconds after the ignition switch is turned to the ON position and goes off if the system is normal.

When an open circuit is detected, such as when the connector between the combination meter and the center airbag sensor assembly is disconnected, the SRS warning light remains on even when approximately 6 seconds elapsed after the ignition switch is turned to the ON position.

DTC B1662/45 is recorded when a malfunction is detected in the SRS warning light circuit.

DIAGNOSTIC TROUBLE CODE CHART

DTC No.

DTC Detecting Condition

Trouble Area

B1662/45

• The center airbag sensor assembly receives an open circuit signal or a short circuit to ground signal in the SRS warning light circuit for 2 seconds.

• SRS warning light malfunction

• Center airbag sensor assembly malfunction

• Combination meter (SRS warning light)

• Center airbag sensor assembly

HINT:

When DTC B1662/45 and B1000/31 are output simultaneously, perform the troubleshooting for DTC B1662/45 first.

WIRING DIAGRAM

2007 RESTRAINTS Supplemental Restraint System - Sequoia

Toyota Mr2 Wiring Diagram Maf Sensor
Fig. 150: Indicator Light Circuit Malfunction - Wiring Diagram Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1. CHECK BATTERY

a. Measure the voltage of the battery.

2007 RESTRAINTS Supplemental Restraint System - Sequoia

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Responses

  • angelica sackville
    How to replace an airbag sensor assy on toyota canry 1997?
    6 years ago
  • kedija
    Where is airbag assy center 2001 toyota?
    6 years ago
  • Lorenzo
    Where is the sensor for airbag camry 2007?
    6 years ago

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