Toyota Venza manuals

Toyota Venza: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below (proceed to the page listed for that circuit).

HINT:

When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, perform troubleshooting for the occupant classification system as shown in the chart below.

Occupant Classification System

DTC Code

Detection Item

Trouble Area

Passenger Airbag ON/OFF Indicator (OFF indicator)

See page

B1771

Passenger Side Buckle Switch Circuit Malfunction

1. Front seat inner belt assembly RH (Passenger side buckle switch)

2. Occupant classification ECU

3. Front seat wire RH (for Power seat)

3. No. 2 floor wire (for Manual seat)

ON


B1780

Front Occupant Classification Sensor LH Circuit Malfunction

1. Front seat frame with adjuster assembly RH (Front occupant classification sensor LH)

2. Occupant classification ECU

3. Front seat wire RH

ON


B1781

Front Occupant Classification Sensor RH Circuit Malfunction

1. Front seat frame with adjuster assembly RH (Front occupant classification sensor RH)

2. Occupant classification ECU

3. Front seat wire RH

ON


B1782

Rear Occupant Classification Sensor LH Circuit Malfunction

1. Front seat frame with adjuster assembly RH (Rear occupant classification sensor LH)

2. Occupant classification ECU

3. Front seat wire RH

ON


B1783

Rear Occupant Classification Sensor RH Circuit Malfunction

1. Front seat frame with adjuster assembly RH (Rear occupant classification sensor RH)

2. Occupant classification ECU

3. Front seat wire RH

ON


B1785

Front Occupant Classification Sensor LH Collision Detection

1. Front seat frame with adjuster assembly RH (Front occupant classification sensor LH)

2. Occupant classification ECU

ON


B1786

Front Occupant Classification Sensor RH Collision Detection

1. Front seat frame with adjuster assembly RH (Front occupant classification sensor RH)

2. Occupant classification ECU

ON


B1787

Rear Occupant Classification Sensor LH Collision Detection

1. Front seat frame with adjuster assembly RH (Rear occupant classification sensor LH)

2. Occupant classification ECU

ON


B1788

Rear Occupant Classification Sensor RH Collision Detection

1. Front seat frame with adjuster assembly RH (Rear occupant classification sensor RH)

2. Occupant classification ECU

ON


B1790

Center Airbag Sensor Assembly Communication Circuit Malfunction

1. Occupant classification ECU

2. Center airbag sensor assembly

3. Front seat wire RH (for Power seat)

4. No. 2 floor wire

5. Junction connector

ON


B1793

Occupant Classification Sensor Power Supply Circuit Malfunction

1. Front seat frame with adjuster assembly RH (Occupant classification sensors)

2. Occupant classification ECU

3. Front seat wire RH

ON


B1794

Open in Occupant Classification ECU Battery Positive Line

1. Battery

2. ECU-B fuse

3. Wire harness

4. Occupant classification ECU

ON


B1795

Occupant Classification ECU Malfunction

Occupant classification ECU

ON


B1796

Sleep Operation Failure of Occupant Classification ECU

Occupant classification ECU

ON


Sleep Operation Failure of Occupant Classification ECU (B1796)
DESCRIPTION In sleep mode, the occupant classification ECU reads the condition of each sensor while the ignition switch is off. In this mode, if occupant classification ECU detects an internal mal ...

Occupant Classification ECU Malfunction (B1795)
DESCRIPTION DTC B1795 is recorded when a malfunction is detected in the occupant classification ECU. Troubleshoot DTC B1771 first if DTCs B1771 and B1795 are output simultaneously. DTC ...

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