DTC B1637/85 Short to GND in Rear Curtain Shield Squib LH Circuit
DESCRIPTION
The rear curtain shield squib LH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly LH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1637/85 is recorded when a short to ground is detected in the rear curtain shield squib LH circuit
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
1 CHECK CURTAIN SHIELD AIRBAG ASSEMBLY LH (REAR CURTAIN SHIELD SQUIB LH)
CAUTION: Never connect a tester to the curtain shield airbag assembly LH (Rear curtain shield squib LH) for measurement, as this may lead to a serious injury due to airbag deployment.
NOTICE: Do not forcibly insert the SST into the terminals of the connector when connecting.
Insert the SST straight into the terminals of the connector.
SST 09843-18060
OK: DTC B1637/85 is not output.
HINT: Codes other than DTC B1637/85 may be output at this time, but they are not related to this check.
REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY LH
2 CHECK FLOOR WIRE (REAR CURTAIN SHIELD SQUIB LH CIRCUIT)
Standard resistance
3 CHECK CENTER AIRBAG SENSOR ASSEMBLY
OK: DTC B1637/85 is not output.
HINT: Codes other than code B1637/85 may be output at this time, but they are not related to this check
USE SIMULATION METHOD TO CHECK
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE HEATED OXYGEN SENSOR (for Bank 1
Sensor 2) (See page EC-38)
3. REMOVE TAIL EXHAUST PIPE ASSEMBLY
(a) Remove the 2 bolts.
(b) Disconnect the 4 exhaust pipe supports and remove
the tail exhaust pipe assembly.
(c) Remove the gas ...
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Select to check the message.
Select to refuse the message.
Select to call the message
sender.
Receiving a message
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Oxygen Sensor Circuit
HINT:
Sensor 2 refers to the sensor mounted behind the Three-Way Catalytic
Converter (TWC) and located far
from the engine assembly.
DESCRIPTION
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monoxide (CO), hydro
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