2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 463

DTC B1820, B1821, B1822, B1823 or 55 is not output.

HINT

Codes other than DTC B1820, B1821, B1822, B1823 and 55 may be output at this time, but they are not related to this check.

Text in Illustration

NG -- CHECK FLOOR WIRE (SIDE SQUIB RH CIRCUIT)

OK -- REPLACE FRONT SEAT ASSEMBLY RH See: Body and Frame/Seats/Service and Repair/Removal and

Replacement/Front Seat Assembly/Removal

1. CHECK FLOOR WIRE (SIDE SQUIB RH CIRCUIT)

(a) Turn the engine switch off.

(b) Disconnect the cable from the negative (-) battery terminal.

NOTICE:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Disconnect SST from connector C.

(d) Disconnect the floor wire from the center airbag sensor assembly.

(e) Check for a short to B+ in the circuit.

(1) Connect the cable to the negative (-) battery terminal.

(2) Turn the engine switch on (IG).

(3) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

(f) Check for an open in the circuit.

(1) Turn the engine switch off.

(2) Disconnect the cable from the negative (-) battery terminal.

NOTICE:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(3) Measure the resistance according to the value(s) in the table below.

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 465

DTC B1820, B1821, B1822, B1823 or 55 is not output.

Text in Illustration

HINT

Codes other than DTC B1820, B1821, B1822, B1823 and 55 may be output at this time, but they are not related to this check.

NG -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY See: Relays and Modules/Relays and Modules - Restraints and

Safety Systems/Air Bag Control Module/Service and Repair/Removal

OK -- USE SIMULATION METHOD TO CHECK See: Accessories and Optional Equipment/Antitheft and Alarm

Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed With Troubleshooting

Up to 08/2009

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1825/56-B1828/56: Short in Side Squib LH Circuit

B1828/56 - Short to B+ in Side Squib LH Circuit

DESCRIPTION

The side squib LH circuit consists of the center airbag sensor assembly and front seat side airbag assembly LH.

This circuit instructs the SRS to deploy when deployment conditions are met.

These DTCs are recorded when a malfunction is detected in the side squib LH circuit.

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT

* Perform the simulation method by selecting the Check Mode (Signal Check) using the Techstream See: Restraints and Safety

Systems/Air Bag Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Check Mode Procedure.