Lighting (Ext). Lighting System Taillight Circuit

Vehicle Exterior. Land Cruiser. Urj200, 202 Grj200 Vdj200

Lighting (Ext). Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TAILLIGHT RELAY)

INSPECT FUSE (TAIL FUSE)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY)

CHECK VEHICLE TYPE

CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - MAIN BODY ECU AND BODY GROUND)

CHECK HARNESS AND CONNECTOR (REAR LIGHT - MAIN BODY ECU AND BODY GROUND)

LIGHTING SYSTEM - Taillight Circuit

DESCRIPTION

The main body ECU receives a light control switch information signal from the headlight dimmer switch, and illuminates the taillights.

WIRING DIAGRAM

Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Taillight Circuit

INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TAILLIGHT RELAY)

Operate the intelligent tester according to the steps on the display and select "Active Test".

Main Body
Tester Display
Test Part
Control Range
Diagnostic Note
Taillight Relay
Taillight
ON or OFF
-
OK:
Taillight turns on/turns off.

Main Body
Tester Display	Test Part	Control Range	Diagnostic Note
Taillight Relay	Taillight	ON or OFF	-

Go to step 2

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.INSPECT FUSE (TAIL FUSE)

Remove the TAIL fuse from the main body ECU.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
TAIL fuse
Always
Below 1 Ω

REPLACE FUSE

OK

3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY)

Disconnect the 2A ECU connector.

Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Condition
Specified Condition
2A-1 - Body ground
Always
11 to 14 V

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.CHECK VEHICLE TYPE

Check the vehicle type.
Result
Result
Proceed to
for Double Swing Out Type
A
except Double Swing Out Type
B

Result
Result	Proceed to
for Double Swing Out Type	A
except Double Swing Out Type	B

Go to step 6

A

5.CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - MAIN BODY ECU AND BODY GROUND)

Disconnect the 2C ECU connector.

for LH:
1. Disconnect the n1 light connector.
2. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2C-22 - n1-5 (TL)
  Always
  Below 1 Ω
  n1-4 (E) - Body ground
  n1-5 (TL) - Body ground
  Always
  10 kΩ or higher

for RH:
1. Disconnect the Y1 light connector.
2. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2C-22 - Y1-5 (TL)
  Always
  Below 1 Ω
  Y1-6 (E) - Body ground
  Y1-5 (TL) - Body ground
  Always
  10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MAIN BODY ECU

6.CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - MAIN BODY ECU AND BODY GROUND)

Disconnect the 2C ECU connector.

for LH:
1. Disconnect the K4 light connector.
2. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2C-22 - K4-6 (TL)
  Always
  Below 1 Ω
  K4-3 (E) - Body ground
  K4-6 (TL) - Body ground
  Always
  10 kΩ or higher

for RH:
1. Disconnect the L3 light connector.
2. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2C-22 - L3-6 (TL)
  Always
  Below 1 Ω
  L3-3 (E) - Body ground
  L3-6 (TL) - Body ground
  Always
  10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

7.CHECK HARNESS AND CONNECTOR (REAR LIGHT - MAIN BODY ECU AND BODY GROUND)

Disconnect the 2C ECU connector.

for LH:
1. Disconnect the S11 light connector.
2. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2C-22 - S11-3
  Always
  Below 1 Ω
  S11-1 - Body ground
  S11-3 - Body ground
  Always
  10 kΩ or higher

for RH:
1. Disconnect the S12 light connector.
2. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  2C-22 - S12-3
  Always
  Below 1 Ω
  S12-1 - Body ground
  S12-3 - Body ground
  Always
  10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MAIN BODY ECU

Tester Connection	Condition	Specified Condition
TAIL fuse	Always	Below 1 Ω

Tester Connection	Condition	Specified Condition
2C-22 - n1-5 (TL)	Always	Below 1 Ω
n1-4 (E) - Body ground	Always	Below 1 Ω
n1-5 (TL) - Body ground	Always	10 kΩ or higher

Tester Connection	Condition	Specified Condition
2C-22 - Y1-5 (TL)	Always	Below 1 Ω
Y1-6 (E) - Body ground	Always	Below 1 Ω
Y1-5 (TL) - Body ground	Always	10 kΩ or higher

Tester Connection	Condition	Specified Condition
2C-22 - K4-6 (TL)	Always	Below 1 Ω
K4-3 (E) - Body ground	Always	Below 1 Ω
K4-6 (TL) - Body ground	Always	10 kΩ or higher

Tester Connection	Condition	Specified Condition
2C-22 - L3-6 (TL)	Always	Below 1 Ω
L3-3 (E) - Body ground	Always	Below 1 Ω
L3-6 (TL) - Body ground	Always	10 kΩ or higher