LIGHTING SYSTEM - Turn Signal Light Circuit

Turn the engine switch on (IG).

When the turn signal light switch is operated, check that the corresponding turn signal lights flash.

• HINT:

• The front, side and rear turn signal lights share the same drive circuit. Therefore, if either the front or rear turn signal lights do not come on, there may be a problem in the circuit between the turn signal flasher and the bulb, or the circuit between the bulb and body ground.

• Result:

• Result	Proceed to
  Neither left nor right turn signal lights flash	A
  Left turn signal lights do not flash	B
  Right turn signal lights do not flash	C

Connect the intelligent tester to the DLC3.

Turn the engine switch on (IG).

Turn the intelligent tester on.

Select the item(s) below in the ACTIVE TEST, and check the operation.

• OK:
• Turn signal lights flash.

Remove the LH-IG fuse from the cowl side J/B LH.

Remove the TURN-HAZ fuse from the engine room No. 1 J/B.

Measure the resistance of the fuses.

Disconnect the LA main body ECU LH connector.

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

• Standard voltage:

• Tester Connection	Condition	Specified Condition
  LA-16 (TL) - Body ground	Always	10 to 14 V

Disconnect the J30 flasher connector.

Disconnect the B12 headlight connector.

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

• Standard resistance:

• Tester Connection	Condition	Specified Condition
  J30-3 (LL) - B12-9	Always	Below 1 Ω
  J30-3 (LL) - Body ground	Always	10 kΩ or higher

Disconnect the LA main body ECU LH connector.

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

• Standard voltage:

• Tester Connection	Condition	Specified Condition
  LA-15 (TR) - Body ground	Always	10 to 14 V

Disconnect the J30 flasher connector.

Disconnect the B2 headlight connector.

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

• Standard resistance:

• Tester Connection	Condition	Specified Condition
  J30-2 (LR) - B2-9	Always	Below 1 Ω
  J30-2 (LR) - Body ground	Always	10 kΩ or higher

Temporarily replace the turn signal flasher with a new or normally functioning one.

Check that the turn signal lights flash.

• OK:
• Turn signal lights flash.

Disconnect the LA main body ECU LH connector.

Disconnect the J30 flasher connector.

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

• Standard resistance:

• Tester Connection	Condition	Specified Condition
  LA-15 (TR) - J30-6 (ER)	Always	Below 1 Ω
  LA-15 (TR) - Body ground	Always	10 kΩ or higher