DESCRIPTION
The main body ECU (driver side junction block assembly) controls the operation of the TAIL relay.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Active Test.
(e) Check that the relay operates.
Main Body
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Taillight Relay |
Taillight relay |
ON/OFF |
- |
OK:
Taillight relay operates. (Taillights illuminate.)
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
INSPECT TAILLIGHT RELAY (TAIL) |
(a) Remove the taillight relay from the main body ECU (driver side junction block assembly). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
3 - 5 |
Voltage is not applied between terminals 1 and 2 |
10 kΩ or higher |
Apply the battery voltage between terminals 1 and 2 |
Below 1 Ω |
|
3 - 4 |
Voltage is not applied between terminals 1 and 2 |
Below 1 Ω |
Apply the battery voltage between terminals 1 and 2 |
10 kΩ or higher |
NG |
REPLACE TAILLIGHT RELAY |
|
3. |
CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
(a) Disconnect the 2A main body ECU (driver side junction block assembly) connector. |
|
(b) 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 |
*1 |
Front view of wire harness connector (to Main Body ECU (Driver Side Junction Block Assembly)) |
OK |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because in ...
Diagnosis System
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3 (See page ).
2. FUNCTION OF PASSENGER AIRBAG ON/OFF INDICATOR
(a) Initial check.
(1) Turn the ignition switch to ON.
(2) The passenger airbag ON/OFF indicator ("ON" and "OFF") comes o ...
Rear Light Assembly
Components
COMPONENTS
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT REAR LIGHT ASSEMBLY
(a) Disconnect the connector from the rear light assembly.
(b) Measu ...