LIGHTING (EXT): RELAY: ON-VEHICLE INSPECTION; 2017 - 2020 MY Sienna [08/2016

Last Modified: 04-05-2023	6.11:8.1.0	Doc ID: RM10000000107IU
Model Year Start: 2017	Model: Sienna	Prod Date Range: [08/2016 - ]
Title: LIGHTING (EXT): RELAY: ON-VEHICLE INSPECTION; 2017 - 2020 MY Sienna [08/2016 - ]

ON-VEHICLE INSPECTION

1. INSPECT HEADLIGHT DIMMER RELAY

(a) Check the resistance.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	When battery voltage not applied	10 kΩ or higher
3 - 5	When battery voltage to terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the headlight dimmer relay.

2. INSPECT LIGHT CUT RELAY

(a) Check the resistance.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	When battery voltage not applied	10 kΩ or higher
3 - 5	When battery voltage to terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the light cut relay.

3. INSPECT HEADLLIGHT RELAY (w/ Headlight Relay)

(a) Check the resistance.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	When battery voltage not applied	10 kΩ or higher
3 - 5	When battery voltage to terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the headlight relay.

4. INSPECT NO. 1 DAY TIME RUNNING LIGHT RELAY (for LED Type)

(a) Check the resistance.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	When battery voltage not applied	10 kΩ or higher
3 - 5	When battery voltage to terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the No. 1 day time running light relay.

5. INSPECT FOG LIGHT RELAY

(a) Check the resistance.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Battery voltage not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Battery voltage applied between terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the fog light relay.