Codigo Yaris 2007 B1813

Total OBD & ECU Auto Diagnostics

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2006 RESTRAINTS Supplemental Restraint System - Sequoia

Codes other than DTC B1805, B1806, B1807 and B1808 may be output at this time, but they are not related to this check.

NG: REPLACE FRONT PASSENGER AIRBAG ASSEMBLY

OK: USE SIMULATION METHOD TO CHECK

DTC B1810/53 SHORT IN DRIVER SIDE SQUIB 2ND STEP CIRCUIT; DTC B1811/53 OPEN IN DRIVER SIDE SQUIB 2ND STEP CIRCUIT; DTC B1812/53 SHORT TO GND IN DRIVER SIDE SQUIB 2ND STEP CIRCUIT; DTC B1813/53 SHORT TO B+ IN DRIVER SIDE SQUIB 2ND STEP CIRCUIT

DESCRIPTION

The D squib (Dual stage -2nd step) circuit consists of the center airbag sensor assembly, the spiral cable and the steering wheel pad.

The circuit instructs the SRS to deploy when deployment conditions are met. These DTCs are recorded when a malfunction is detected in the D squib (Dual stage - 2nd step) circuit.

DIAGNOSTIC TROUBLE CODE CHART

DTC No.

DTC Detection Condition

Trouble Area

B1810/53

• The center airbag sensor assembly receives a line short circuit signal 5 times in the D squib (Dual stage - 2nd step) circuit during primary check.

• Spiral cable malfunction

• D squib malfunction

• Center airbag sensor assembly malfunction

• Steering wheel pad (D squib, Dual stage - 2nd step)

• Center airbag sensor assembly

• Cowl wire

B1811/53

• The center airbag sensor assembly receives an open circuit signal in the D squib (Dual stage - 2nd step) circuit for 2 seconds.

• Spiral cable malfunction

• D squib malfunction

• Center airbag sensor assembly malfunction

• Steering wheel pad (D squib, Dual stage - 2nd step)

• Center airbag sensor assembly

• Cowl wire

B1812/53

• The center airbag sensor assembly receives a short circuit to ground signal in the D squib (Dual stage - 2nd step) circuit for 0.5 seconds.

• Spiral cable malfunction

• D squib malfunction

• Center airbag sensor assembly malfunction

• Steering wheel pad (D squib, Dual stage - 2nd step)

• Center airbag sensor assembly

• Cowl wire

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