DESCRIPTION
The main body ECU (driver side junction block assembly) controls the fog light 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 |
---|---|---|---|
Front Fog Light Relay |
Front fog light relay |
ON/OFF |
- |
OK:
Front fog light relay operates. (Front fog lights come on.)
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
INSPECT FOG LIGHT RELAY (FOG) |
(a) Remove the front fog light relay from the instrument panel junction block. |
|
(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 |
3 - 5 |
Voltage is applied between terminals 1 and 2 |
Below 1 Ω |
NG | ![]() |
REPLACE FOG LIGHT RELAY |
|
3. |
CHECK HARNESS AND CONNECTOR (BATTERY - FRONT FOG LIGHT RELAY) |
(a) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT FOG LIGHT RELAY - MAIN BODY ECU) |
(a) Disconnect the D50 main body ECU (driver side junction block assembly) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Front fog light relay terminal 2 - D50-4 (FFGO) |
Always |
Below 1 Ω |
D50-4 (FFGO) - Body ground |
Always |
10 kΩ or higher |
*1 |
Main Body ECU (Driver Side Junction Block Assembly) |
*3 |
Front view of wire harness connector (to Main Body ECU (Driver Side Junction Block Assembly)) |
*2 |
Front Fog Light Relay Terminal |
- |
- |
OK | ![]() |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
4wd Control Ecu
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT DOOR SCUFF PLATE RH
2. REMOVE COWL SIDE TRIM SUB-ASSEMBLY RH
3. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY
4. REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 2F and 2C driver side junction block connectors.
(b) Disconnect the D50 and D51 main body ECU connectors.
(c) Measure the resistance and voltage according to ...
Camshaft Position "A" Actuator Circuit (Bank 1) (P0010)
DESCRIPTION
The Variable Valve Timing (VVT) system adjusts the intake valve timing to improve
driveability. The engine oil pressure turns the VVT controller to adjust the valve
timing.
The camshaft timing oil control valve assembly is a solenoid valve an ...