Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT DAYTIME RUNNING LIGHT RELAY (Marking: DRL NO. 2, DRL NO. 3, DRL NO. 4)

Remove the No. 2 relay, No. 3 relay and No. 4 relay from the engine room No. 2 relay block.

Measure the resistance of the relays.

Standard resistance:

No. 2, No. 4

DAYTIME RUNNING LIGHT RELAY - NO. 2, NO. 4

Tester Connection	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (Battery voltage applied to terminals 1 and 2)

No. 3

DAYTIME RUNNING LIGHT RELAY - NO. 3

Tester Connection	Specified Condition
4 - 5	Below 1 Ω
4 - 5	10 kΩ or higher (Battery voltage applied to terminals 1 and 2)
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (Battery voltage applied to terminals 1 and 2)

Fig 1: Inspecting Day Time Running Light Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE DAYTIME RUNNING LIGHT RELAY

OK: Go to next step

INSPECT FUSE (HEAD LH)
1. Remove the HEAD LH fuse from the engine room No. 2 relay block.
2. Measure the resistance of the fuse.
  Standard resistance:
  
  Below 1 Ω
NG: REPLACE FUSE

OK: Go to next step
INSPECT HEADLIGHT BULB (HIGH)
1. Remove the headlight bulb (high).
2. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, then check that the bulb illuminates.
  
  Fig 2: Identifying Headlight Bulb (HIGH) Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE HEADLIGHT BULB (HIGH)

OK: Go to next step

CHECK WIRE HARNESS (BATTERY - NO. 2 DAYTIME RUNNING LIGHT RELAY)

Remove the No. 2 daytime running light relay from the engine room No. 2 relay block.

Measure the voltage of the relay block.

Standard voltage

STANDARD VOLTAGE

Tester Connection	Specified Condition
Relay block daytime running light No. 2 relay terminal 5 - Body ground	10 to 14 V

Fig 3: Locating No. 2 Daytime Running Light Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (NO. 2 DAYTIME RUNNING LIGHT RELAY - HEADLIGHT BULB AND BODY GROUND)

Remove the No. 2 daytime running light relay from the engine room No. 2 relay block.
Disconnect the A14 and A22 headlight (HIGH) connectors.

Measure the resistance of the wire harness side connectors and relay block.

Standard resistance

STANDARD RESISTANCE

Tester Connection	Specified Condition
Relay block daytime running light No. 2 relay terminal 3 - A14-2	Below 1 Ω
A14-2 - Body ground	10 kΩ or higher
A14-1 -A22-1	Below 1 Ω
A14-1 - Body ground	10 kΩ or higher
A22-2 - Body ground	Below 1 Ω

Fig 4: Identifying A14 And A22 Headlight (HIGH) Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step

CHECK WIRE HARNESS (MAIN BODY ECU - BATTERY)

Disconnect the E16 main body ECU connector.

Measure the voltage of the wire harness side connector.

Standard voltage

STANDARD VOLTAGE

Tester Connection	Specified Condition
E16-3 (DIM) - Body ground	10 to 14 V

Fig 5: Identifying E16 Main Body ECU Connector Terminal (DIM)

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)