Toyota Tundra (2015 year). Manual - part 2093

TESTER CONNECTION

SWITCH CONDITION

SPECIFIED CONDITION

A10-1 (B) - Body ground

Light control switch TAIL

11 to 14 V

Light control switch except TAIL

Below 1 V

(b) for RH:

(1) Disconnect the A11 headlight connector.

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

Standard voltage:

TESTER CONNECTION

SWITCH CONDITION

SPECIFIED CONDITION

A11-1 (B) - Body ground

Light control switch TAIL

11 to 14 V

Light control switch except TAIL

Below 1 V

NG

GO TO STEP 5

OK

REPAIR OR REPLACE HARNESS OR CONNECTOR

(HEADLIGHT - BODY GROUND)

5.

INSPECT DAYTIME RUNNING LIGHT RELAY (LED DRL)

(a) Remove the daytime running light relay from the engine room

relay block.

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

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

LIGHTING: LIGHTING SYSTEM: DRL Relay Circuit; 2015 MY Tundr...

OK

OK

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

3 - 5

When battery voltage is applied to terminals 1 and 2

Below 1 Ω

3 - 5

When battery voltage is not applied to terminals 1 and 2

10 kΩ or higher

NG

REPLACE DAYTIME RUNNING LIGHT RELAY (LED

DRL)

6.

CHECK HARNESS AND CONNECTOR (DAYTIME RUNNING LIGHT RELAY [LED DRL] -
BATTERY)

(a) Remove the daytime running light relay from the engine room

relay block.

(b) Measure the voltage according to the value(s) in the table

below.

Standard voltage:

TESTER CONNECTION

CONDITION

SPECIFIED

CONDITION

Daytime running light relay terminal

1 - Body ground

Always

11 to 14 V

Daytime running light relay terminal

3 - Body ground

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.

CHECK HARNESS AND CONNECTOR (DAYTIME RUNNING LIGHT RELAY [LED DRL] -
HEADLIGHT)

LIGHTING: LIGHTING SYSTEM: DRL Relay Circuit; 2015 MY Tundr...

OK

*1: for LH

*2: for RH

(a) Remove the daytime running light relay from the engine room relay block.

(b) Disconnect the A10*1 and A11*2 headlight connectors.

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

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

Daytime running light relay terminal 5 - A10-1 (B)*1

Always

Below 1 Ω

Daytime running light relay terminal 5 - Body ground*1

Always

10 kΩ or higher

Daytime running light relay terminal 5 - A11-1 (B)*2

Always

Below 1 Ω

Daytime running light relay terminal 5 - Body ground*2

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.

CHECK HARNESS AND CONNECTOR (DAYTIME RUNNING LIGHT RELAY [LED DRL] -
MAIN BODY ECU)

LIGHTING: LIGHTING SYSTEM: DRL Relay Circuit; 2015 MY Tundr...

(a) Remove the daytime running light relay from the engine room relay block.

(b) Disconnect the J3 ECU connector.

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

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

Daytime running light relay terminal 2 - J3-8 (DRL)

Always

Below 1 Ω

J3-8 (DRL) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

REPLACE MAIN BODY ECU

LIGHTING: LIGHTING SYSTEM: DRL Relay Circuit; 2015 MY Tundr...