Short to B+ in Front Driver Side Pretensioner Squib Circuit
DTC B1903/73 Short to B+ in Front Driver Side Pretensioner Squib CircuitDESCRIPTION
DTC Detections Conditions:
The pretensioner squib (driver seat side) circuit consists of the center airbag sensor assembly and the front seat outer belt assembly LH.
This circuit signals the SRS to deploy when airbag deployment conditions are met.
These DTCs are set when a malfunction is detected in the pretensioner squib (driver seat side) circuit.
Wiring Diagram:
INSPECTION PROCEDURE
CAUTION: In order to prevent unexpected airbag deployment, disconnect the following connectors before inspecting parts such as wire harnesses, if the application of tester probes to the center airbag sensor assembly connector is necessary.
a. Turn the ignition switch to the LOCK position.
b. Disconnect the negative (-) terminal cable from the battery, and wait forat least 90 seconds.
c. Disconnect the connectors from the center airbag sensor assembly.
d. Disconnect the connectors from the steering pad.
e. Disconnect the connector from the front passenger airbag assembly.
f. Disconnect the connector from the front seat airbag assembly LH.
g. Disconnect the connector from the front seat airbag assembly RH.
HINT: Skip the following steps if side and curtain shield airbags are not fitted.
h. Disconnect the connector from the curtain shield airbag assembly LH.
i. Disconnect the connector from the curtain shield airbag assembly RH.
j. Disconnect the connector from the front seat outer belt assembly LH.
k. Disconnect the connector from the front seat outer belt assembly RH.
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