DESCRIPTION
If the dimmer switch is turned to TAIL, HEAD or AUTO, the main body ECU sends a TAIL relay signal, panel light illumination signal, panel relay signal and TAIL cancel OFF signal to the combination meter. Then the meter and accessory meter become dim.
HINT:
w/ TAIL Cancel Switch:
When the headlights are illuminated and the TAIL cancel switch is turned on, the meter does not dim.
WIRING DIAGRAM
PROCEDURE
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check for DTCs (See page ).
Result |
Proceed to |
---|---|
CAN communication system DTC is not output |
A |
CAN communication system DTC is output |
B |
B | ![]() |
Go to CAN COMMUNICATION SYSTEM |
|
2. |
READ VALUE USING TECHSTREAM (LIGHT CONTROL RHEOSTAT) |
(a) Operate the Techstream according to the display and select the Data List
(See page ).
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Tail Cancel SW* |
TAIL cancel switch condition/ON or OFF |
on: TAIL cancel switch on off: TAIL cancel switch off |
- |
Rheostat value |
Light control rheostat switch input/Min.: 0, Max.: 100 |
Light control rheostat switch is fully turned downward (0) → fully turned upward (100) |
Unit: % |
OK:
Light brightness can be changed within specified range by manual operation.
OK | ![]() |
REPLACE COMBINATION METER ASSEMBLY |
|
3. |
INSPECT LIGHT CONTROL RHEOSTAT |
w/o TAIL Cancel Switch:
(a) Inspect the light control rheostat.
(1) Remove the light control rheostat (See page
).
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
7 (T) - 1 (E) |
Always |
8 to 12 kΩ |
3 (RV) - 1 (E) |
Light control rheostat fully turned upward → fully turned downward |
8 to 12 kΩ → Below 50 Ω |
w/ TAIL Cancel Switch:
(b) Inspect the light control rheostat.
(1) Remove the light control rheostat (See page
).
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
7 (T) - 5 (TC) |
TAIL cancel switch off → on |
1 MΩ or higher → Below 1 Ω |
7 (T) - 1 (E) |
Always |
8 to 12 kΩ |
3 (RV) - 1 (E) |
Light control rheostat fully turned upward → fully turned downward |
8 to 12 kΩ → Below 50 Ω |
NG | ![]() |
REPLACE LIGHT CONTROL RHEOSTAT |
|
4. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER - LIGHT CONTROL RHEOSTAT) |
(a) Disconnect the F14 meter connector.
(b) Disconnect the F5 rheostat connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F14-37 (RHIG) - F5-7 (T) |
Always |
Below 1 Ω |
F14-38 (TR) - F5-3 (RV) |
||
F14-39 (E2) - F5-1 (E) |
||
F14-36 (TC) - F5-5 (TC)* |
OK | ![]() |
REPLACE COMBINATION METER ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Removal
REMOVAL
PROCEDURE
1. REMOVE UPPER RADIATOR SUPPORT SEAL
2. REMOVE FRONT BUMPER COVER
(a) Put protective tape around the front bumper cover.
(b) Remove the 3 bolts, 10 screws and 6 clips.
(c) Detach the 14 claws to remove the front bumper cover with ra ...
4wd Control Ecu
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE NO. 2 INSTRUMENT CLUSTER FINISH PANEL GARNISH
2. REMOVE DOOR SCUFF PLATE ASSEMBLY RH
3. REMOVE COWL SIDE TRIM BOARD RH
4. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER S ...