2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 564

Standard Resistance:

Text in Illustration

NG -- REPLACE INSTRUMENT PANEL WIRE

OK -- Continue to next step.

4. CHECK CENTER AIRBAG SENSOR ASSEMBLY

(a) Restore the released activation prevention mechanism of connector B to the original condition.

(b) Connect the connectors to the front passenger side knee airbag assembly and center airbag sensor assembly.

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

(d) Turn the engine switch on (IG), and wait for at least 60 seconds.

(e) Clear the stored DTCs in the memory See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Reading and

Clearing Diagnostic Trouble Codes/DTC Check / Clear.

(f) Turn the engine switch off.

(g) Turn the engine switch on (IG), and wait for at least 60 seconds.

(h) Check for DTCs See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Reading and Clearing Diagnostic

Trouble Codes/DTC Check / Clear.

OK:

DTC B1865, B1866, B1867, B1868, or 65 is not output.

Text in Illustration

HINT

Codes other than DTC B1865, B1866, B1867, B1868, and 65 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

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 745

Standard Resistance:

Text in Illustration

NG -- REPLACE NO. 2 FLOOR WIRE

OK -- Continue to next step.

8. CHECK NO. 2 FLOOR WIRE (OPEN)

(a) Using SST, connect terminals 2 (BCL+) and 1 (BCL-) of connector C.

NOTICE:

Do not forcibly insert SST into the terminals of the connector when connecting.

SST : 09843-18040

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

Standard Resistance:

Text in Illustration

NG -- REPLACE NO. 2 FLOOR WIRE

OK -- Continue to next step.

9. CHECK NO. 2 FLOOR WIRE (SHORT)

(a) Disconnect SST from connector C.

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 643

Standard Resistance:

for 12 Speakers

for 9 Speakers

(k) w/ Manual (SOS) Switch:

Measure the resistance between the front No. 2 speaker RH and the DCM (telematics transceiver) to check for an open circuit in the

wire harness.

Standard Resistance:

(m)Measure the resistance between the front No. 4 speaker and the stereo component amplifier assembly to check for an open circuit in

the wire harness.

Standard Resistance:

for 12 Speakers

for 9 Speakers

(n) for 12 Speakers:

Measure the resistance between the rear No. 3 speaker and the stereo component amplifier assembly to check for an open circuit in the

wire harness.

Standard Resistance:

(p) Measure the resistance between each of the front No. 2 speakers and the front No. 3 speakers to check for an open circuit in the wire

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 123

Standard Resistance:

Text in Illustration

NG -- REPLACE AIR CONDITIONING HARNESS See: Heating and Air Conditioning/Housing Assembly HVAC/Service and

Repair/Overhaul/Disassembly

OK -- REPLACE A/C AMPLIFIER

Up to 08/2009

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1610/13: Front Airbag Sensor RH Malfunction

B1610/13 - Front Airbag Sensor RH Malfunction

DESCRIPTION

The front airbag sensor RH circuit consists of the center airbag sensor assembly and front airbag sensor RH.

The front airbag sensor RH detects impacts to the vehicle and sends signals to the center airbag sensor assembly to determine if the airbag should be

deployed.

DTC B1610/13 is recorded when a malfunction is detected in the front airbag sensor RH.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FRONT AIRBAG SENSOR RH

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 397

Standard Resistance:

Text in Illustration

NG -- REPLACE A/C COMPRESSOR (SOLENOID VALVE) See: Heating and Air Conditioning/Compressor HVAC/Service

and Repair/Removal and Replacement/Removal

OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR (SOLENOID VALVE) - BODY GROUND)

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR (SOLENOID VALVE) - A/C AMPLIFIER)

(a) Disconnect the A/C amplifier connector.

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

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 631

Standard Resistance:

(c) Measure the resistance between front No. 2 speaker and body ground to check for a short circuit in the wire harness.

Standard Resistance:

(d) Measure the resistance between each of the front No. 2 speakers and the stereo component amplifier assembly to check for an open

circuit in the wire harness.

Standard Resistance:

(e) Measure the resistance between each of the front No. 1 speakers and the stereo component amplifier assembly to check for an open

circuit in the wire harness.

Standard Resistance:

(f) Measure the resistance between the front No. 4 speaker and the stereo component amplifier assembly to check for an open circuit in

the wire harness.

Standard Resistance:

(g) Measure the resistance between each of the rear No. 1 speakers and the stereo component amplifier assembly to check for an open

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 12

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MULTI-MEDIA INTERFACE ECU See: Accessories and Optional Equipment/Entertainment

Systems/Entertainment System Control Module/Service and Repair/Multi-Media Interface ECU/Removal

From 08/2009

AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (w/o Navigation System): CB-13: USB Over Current Detection

CB-13 - USB Over Current Detection

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. REPLACE USB DEVICE OR "iPod"

(a) Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.

(b) Turn the engine switch off.

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 39

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE ANTENNA CORD See: Accessories and Optional Equipment/Antenna/Antenna, Radio/Antenna

Cable/Service and Repair/Removal

OK -- Continue to next step.

3. INSPECT SATELLITE RADIO ANTENNA

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

Standard Resistance:

Text in Illustration

NG -- REPLACE SATELLITE RADIO ANTENNA See: Accessories and Optional Equipment/Antenna/Antenna

Amplifier/Service and Repair/Removal

OK -- Continue to next step.

4. REPLACE RADIO RECEIVER ASSEMBLY

(a) Replace the radio receiver assembly with a known good one and check if the same problem occurs again.

(1) Clear the DTCs See: Accessories and Optional Equipment/Radio, Stereo, and Compact Disc/Radio/Stereo/Service and

Repair/Removal.

(2) Recheck for DTCs and check if the same trouble occurs again.

OK:

Malfunction disappears.

NG -- REPLACE SATELLITE RADIO ANTENNA See: Accessories and Optional Equipment/Antenna/Antenna

Amplifier/Service and Repair/Removal

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 493

Standard Resistance:

Text in Illustration

NG -- REPLACE NO. 2 FLOOR WIRE

OK -- Continue to next step.

2. CHECK CENTER AIRBAG SENSOR ASSEMBLY

(a) Restore the released activation prevention mechanism of connector B to the original condition.

(b) Connect the connectors to the curtain shield airbag assembly LH and center airbag sensor assembly.

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

(d) Turn the engine switch on (IG), and wait for at least 60 seconds.

(e) Clear the DTCs stored in the memory See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Reading and

Clearing Diagnostic Trouble Codes/DTC Check / Clear.

(f) Turn the engine switch off.

(g) Turn the engine switch on (IG), and wait for at least 60 seconds.

(h) Check for DTCs See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Reading and Clearing Diagnostic

Trouble Codes/DTC Check / Clear.

OK:

DTC B1835, B1836, B1837, B1838 or 58 is not output.

Text in Illustration

HINT

Codes other than DTC B1835, B1836, B1837, B1838 and 58 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

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 278

Standard Resistance:

Text in Illustration

NG -- REPLACE NO. 2 FLOOR WIRE

OK -- REPLACE FRONT SEAT WIRE RH

9. CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

(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 the front seat wire RH from the No. 2 floor wire.

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

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

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

Standard Voltage:

Text in Illustration

NG -- REPLACE NO. 2 FLOOR WIRE

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 398

Standard Resistance:

Result:

Text in Illustration

C -- REPLACE A/C AMPLIFIER

B -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE See: Heating and Air

Conditioning/Testing and Inspection/Symptom Related Diagnostic Procedures

A -- REPAIR OR REPLACE HARNESS OR CONNECTOR

Up to 08/2009

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1800/51-B1803/51: Short in Driver Side Squib Circuit

B1803/51 - Short to B+ in Driver Side Squib Circuit

DESCRIPTION

* The driver side squib circuit consists of the center airbag sensor assembly, spiral cable and steering pad.

* The circuit instructs SRS to deploy when deployment conditions are met.

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

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 105

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE A/C AMPLIFIER

Up to 08/2009

TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: C2111/11-C2115/15: Transmitter ID1 Operation Stop

C2115/15 - Transmitter ID5 Operation Stop

DESCRIPTION

The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressures. The measured values

are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU. The

ECU compares the measured air pressure values with the air pressure threshold. When the measured air pressure value is less than this threshold, the

warning light in the combination meter comes on. The tire pressure warning ECU stores a DTC when the tire pressure warning valve and transmitter

stops transmitting signals. At this time, forcibly transmit the signals by releasing the tire pressure rapidly. The stored DTC is cleared when the signal

transmission is resumed.

HINT

It is necessary to perform the procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because

it cannot be identified by the output DTC.

INSPECTION PROCEDURE

NOTICE:

It is necessary to perform initialization See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Testing

and Inspection/Programming and Relearning/Initialization after registration See: Instrument Panel, Gauges and Warning

Indicators/Tire Monitoring System/Testing and Inspection/Programming and Relearning/Registration of the transmitter IDs into

the tire pressure warning ECU if the ECU and/or any of the valve and transmitters have been replaced.

PROCEDURE

1. PERFORM FORCED TRANSMISSION OF TRANSMITTER ID OF ALL WHEELS

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 678

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE A/C AMPLIFIER

Up to 08/2009

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1622/81,B1623/81,B1632/81,B1633/81,B1642/81,B1643/81: Lost

communication with Side Airbag Sensor RH

B1643/81 - Side Satellite Sensor Bus RH Initialization Incomplete

DESCRIPTION

The side collision sensor RH circuit (to determine deployment of the front seat side airbag assembly RH, rear seat side airbag assembly RH and

curtain shield airbag assembly RH) is composed of the center airbag sensor assembly, side airbag sensor RH, and rear airbag sensor RH.

The side airbag sensor RH and rear airbag sensor RH detect impacts to the vehicle and send signals to the center airbag sensor assembly to

determine if the airbag should be deployed.

Theses DTCs are recorded when a malfunction is detected for the side collision sensor RH circuit (to determine deployment of the front seat side

airbag assembly RH, rear seat side airbag assembly RH and curtain shield airbag assembly RH).

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 190

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE A/C AMPLIFIER

7. CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - A/C PRESSURE SENSOR)

(a) Disconnect the A/C amplifier connector.

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 292

Standard Resistance:

Text in Illustration

NG -- REPLACE NO. 2 FLOOR WIRE

OK -- REPLACE FRONT SEAT INNER BELT ASSEMBLY LH See: Restraints and Safety Systems/Seat Belt Systems/Seat

Belt/Service and Repair/Removal and Replacement/Front Seat Inner Belt Assembly/Removal

3. CHECK NO. 2 FLOOR WIRE (SHORT TO B+)

(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 the No. 2 floor wire from the front seat inner belt assembly LH.

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

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

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

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 114

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE A/C AMPLIFIER

Up to 08/2009

TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: C2111/11-C2115/15: Transmitter ID1 Operation Stop

C2115/15 - Transmitter ID5 Operation Stop

DESCRIPTION

The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressures. The measured values

are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU. The

ECU compares the measured air pressure values with the air pressure threshold. When the measured air pressure value is less than this threshold, the

warning light in the combination meter comes on. The tire pressure warning ECU stores a DTC when the tire pressure warning valve and transmitter

stops transmitting signals. At this time, forcibly transmit the signals by releasing the tire pressure rapidly. The stored DTC is cleared when the signal

transmission is resumed.

HINT

It is necessary to perform the procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because

it cannot be identified by the output DTC.

INSPECTION PROCEDURE

NOTICE:

It is necessary to perform initialization See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Testing

and Inspection/Programming and Relearning/Initialization after registration See: Instrument Panel, Gauges and Warning

Indicators/Tire Monitoring System/Testing and Inspection/Programming and Relearning/Registration of the transmitter IDs into

the tire pressure warning ECU if the ECU and/or any of the valve and transmitters have been replaced.

PROCEDURE

1. PERFORM FORCED TRANSMISSION OF TRANSMITTER ID OF ALL WHEELS

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 14

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MULTI-MEDIA INTERFACE ECU See: Accessories and Optional Equipment/Entertainment

Systems/Entertainment System Control Module/Service and Repair/Multi-Media Interface ECU/Removal

Up to 08/2009

AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (w/o Navigation System): CB-43,CB-44,CB-50,CB-51,CB-7D: USB Device

Class/Protocol Error

CB-7D - iPod Protocol Unsupported

DESCRIPTION

INSPECTION PROCEDURE

HINT

After the inspection is completed, clear the DTCs.

PROCEDURE

1. REPLACE USB DEVICE OR "iPod"

(a) Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.

(b) Turn the engine switch off.

HINT

When one of these DTCs has been stored, it is necessary to turn off the engine switch to make it possible for the vehicle to

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 199

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE A/C AMPLIFIER

7. CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - A/C PRESSURE SENSOR)

(a) Disconnect the A/C amplifier connector.

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- Continue to next step.

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 473

Standard Resistance:

(h) Check for a short in the circuit.

(1) Release the activation prevention mechanism built into connector B See: Restraints and Safety Systems/Air Bag Systems/Testing

and Inspection/Initial Inspection and Diagnostic Overview/Diagnosis System.

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

Standard Resistance:

Text in Illustration

NG -- REPLACE NO. 2 FLOOR WIRE

OK -- Continue to next step.

2. CHECK CENTER AIRBAG SENSOR ASSEMBLY

(a) Restore the released activation prevention mechanism of connector B to the original condition.

(b) Connect the connectors to the front seat side airbag assembly LH and center airbag sensor assembly.

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

(d) Turn the engine switch on (IG), and wait for at least 60 seconds.

(e) Clear the DTCs stored in the memory See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Reading and

Clearing Diagnostic Trouble Codes/DTC Check / Clear.

(f) Turn the engine switch off.

(g) Turn the engine switch on (IG), and wait for at least 60 seconds.

(h) Check for DTCs See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Reading and Clearing Diagnostic

Trouble Codes/DTC Check / Clear.

OK:

DTC B1825, B1826, B1827, B1828 or 56 is not output.

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 555

Standard Resistance:

Text in Illustration

NG -- REPLACE INSTRUMENT PANEL WIRE

OK -- Continue to next step.

4. CHECK CENTER AIRBAG SENSOR ASSEMBLY

(a) Restore the released activation prevention mechanism of connector B to the original condition.

(b) Connect the connectors to the driver side knee airbag assembly and center airbag sensor assembly.

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

(d) Turn the engine switch on (IG), and wait for at least 60 seconds.

(e) Clear the stored DTCs in the memory See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Reading and

Clearing Diagnostic Trouble Codes/DTC Check / Clear.

(f) Turn the engine switch off.

(g) Turn the engine switch on (IG), and wait for at least 60 seconds.

(h) Check for DTCs See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Reading and Clearing Diagnostic

Trouble Codes/DTC Check / Clear.

OK:

DTC B1860, B1861, B1862, B1863 or 64 is not output.

Text in Illustration

HINT

Codes other than DTC B1860, B1861, B1862, B1863 and 64 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