Seat

Seat Heater Switch

~2min read
Components COMPONENTS ILLUSTRATION
Removal REMOVAL PROCEDURE

1. REMOVE UPPER CONSOLE PANEL SUB-ASSEMBLY


2. REMOVE SEAT HEATER SWITCH

(a) Disengage the 2 claws and remove the seat heater switch as shown in the illustration.

Inspection INSPECTION PROCEDURE

1. INSPECT SEAT HEATER SWITCH

(a) Inspect the driver side seat heater switch operation.

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

Standard Resistance:

Tester Connection

Switch Position

Specified Condition

9 (IG) - 7 (RV)

OFF

10 kΩ or higher

9 (IG) - 7 (RV)

ON

Below 1 Ω

3 (SW) - 7 (RV)

ON (Minimum to Maximum)

0.35 to 3.4 kΩ

Text in Illustration

*1

Component without harness connected

(Seat Heater Switch)

If the result is not as specified, replace the switch.

(2) Turn the seat heater switch on and check if the seat heater switch indicator comes on.

OK:

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 9 (IG)

Battery negative (-) → Terminal 4 (E)

Comes on

If the result is not as specified, replace the switch.

(b) Inspect the front passenger side seat heater switch operation.

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

Standard Resistance:

Tester Connection

Switch Position

Specified Condition

7 (IG) - 5 (RV)

OFF

10 kΩ or higher

7 (IG) - 5 (RV)

ON

Below 1 Ω

2 (SW) - 5 (RV)

ON (Minimum to Maximum)

0.35 to 3.4 kΩ

Text in Illustration

*1

Component without harness connected

(Seat Heater Switch)

If the result is not as specified, replace the switch.

(2) Turn the seat heater switch on and check if the seat heater switch indicator comes on.

OK:

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 7 (IG)

Battery negative (-) → Terminal 3 (E)

Comes on

If the result is not as specified, replace the switch.

(c) Check if the seat heater switch indicator comes on.

OK:

Driver Side

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 8 (ILL+)

Battery negative (-) → Terminal 1 (ILL-)

Comes on

Front Passenger Side

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 6 (ILL+)

Battery negative (-) → Terminal 1 (ILL-)

Comes on

Text in Illustration

*1

Driver Side

*2

Front Passenger Side

If the result is not as specified, replace the switch.

Installation INSTALLATION PROCEDURE

1. INSTALL SEAT HEATER SWITCH

(a) Engage the 2 claws and install the seat heater switch as shown in the illustration.

2. INSTALL UPPER CONSOLE PANEL SUB-ASSEMBLY

Test yourself

A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.