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.
DTC No. |
DTC Detecting Condition |
Trouble Area |
B1637/85 |
|
|
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.
Go to step 2
REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY LH
2 CHECK FLOOR WIRE (REAR CURTAIN SHIELD SQUIB LH CIRCUIT)
Standard resistance
REPAIR OR REPLACE FLOOR WIRE
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.
REPLACE CENTER AIRBAG SENSOR ASSEMBLY
USE SIMULATION METHOD TO CHECK
Disassembly
1. REMOVE FUEL TANK TO FILLER PIPE HOSE (See
page FU-43)
2. REMOVE FUEL TANK MAIN TUBE SUB-ASSEMBLY
(a) Remove the tube joint clip, and pull out the fuel main
tube.
NOTICE:
Check if there is any dirt or mud around the
connector before this operation and remove
the dirt as ...
Reassembly
1. INSTALL HEATER RADIATOR UNIT SUB-ASSEMBLY
(a) Install the heater radiator unit sub-assembly to the
air conditioning blower assembly.
(b) Install the 2 O-rings to the heater water valve
assembly.
(c) Install the 3 screws and the heater water valve
assembly.
(d) Install the 2 s ...
ABS Warning Light Remains ON
DESCRIPTION
If any of the following is detected, the ABS warning light remains on.
The skid control ECU connectors are disconnected from the skid control
ECU.
There is a malfunction in the skid control ECU internal circuit.
There is an open in the harness between the combination meter an ...