PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Headlight System
Symptom |
Suspected Area |
See page |
---|---|---|
Low beam headlight on one side does not illuminate. |
H-LP LH-LO fuse or H-LP RH-LO fuse |
- |
Headlight bulb (Low) |
- |
|
Harness or connector |
- |
|
Both left and right low beam headlights do not illuminate. |
Headlight relay circuit |
|
Headlight dimmer switch circuit |
|
|
Harness or connector |
- |
|
Main body ECU (Multiplex network body ECU) |
- |
|
High beam headlight on one side does not illuminate. |
H-LP LH-HI fuse or H-LP RH-HI fuse |
- |
Headlight bulb (High) |
- |
|
Harness or connector |
- |
|
Both left and right high beam headlights do not illuminate (low beam headlights are normal). |
H-LP HI fuse |
- |
Headlight (HI-BEAM) circuit |
|
|
Headlight dimmer switch circuit |
|
|
Harness or connector |
- |
|
Main body ECU (Multiplex network body ECU) |
- |
|
High beam headlights do not illuminate with "High Flash" function (passing function). |
Headlight dimmer switch circuit |
|
Main body ECU (Multiplex network body ECU) |
- |
|
Low beam headlights or high beam headlights do not turn off. |
Headlight dimmer switch assembly |
|
Harness or connector |
- |
|
Main body ECU (Multiplex network body ECU) |
- |
Symptom |
Suspected Area |
See page |
---|---|---|
Clearance light does not illuminate. |
Clearance light bulb |
- |
Clearance light socket |
- |
|
Harness or connector |
- |
|
Front side marker light does not illuminate. |
Front side marker light bulb |
- |
Front side marker light socket |
- |
|
Harness or connector |
- |
|
Taillight does not illuminate. |
Rear combination light assembly |
- |
Harness or connector |
- |
|
License plate light does not illuminate. |
License plate light bulb |
- |
Harness or connector |
- |
|
All lights do not illuminate. |
TAIL fuse |
- |
Taillight relay circuit |
|
|
Headlight dimmer switch circuit |
|
|
Harness or connector |
- |
|
Main body ECU (Multiplex network body ECU) |
- |
Symptom |
Suspected Area |
See page |
---|---|---|
Stop light on one side does not illuminate. |
Rear combination light assembly |
- |
Harness or connector |
- |
|
Center stop light does not illuminate. |
Center stop light assembly |
|
Harness or connector |
- |
|
All lights do not operate. |
STOP fuse |
- |
Stop light switch assembly |
|
|
Harness or connector |
- |
Symptom |
Suspected Area |
See page |
---|---|---|
Front fog light on one side does not illuminate. |
Front fog light bulb |
- |
Harness or connector |
- |
|
Both left and right front fog lights do not illuminate (taillight is normal). |
FOG FR fuse |
- |
Front fog light circuit |
|
|
Headlight dimmer switch circuit |
|
|
Harness or connector |
- |
|
Main body ECU (Multiplex network body ECU) |
- |
Symptom |
Suspected Area |
See page |
---|---|---|
Hazard warning lights do not operate (turn signal lights are normal). |
TRN&HAZ fuse |
- |
Hazard warning signal switch assembly |
|
|
Turn signal flasher assembly |
|
|
Harness or connector |
- |
|
Turn signal lights do not operate (hazard warning lights are normal). |
IG1 fuse |
- |
Headlight dimmer switch assembly (Turn signal switch) |
|
|
Turn signal flasher assembly |
|
|
Harness or connector |
- |
|
Hazard warning lights and turn signal lights do not operate. |
TRN&HAZ fuse and IG1 fuse |
- |
Turn signal flasher assembly |
|
|
Harness or connector |
- |
|
Turn signal lights do not operate in one direction. |
Headlight dimmer switch assembly (Turn signal switch) |
|
Turn signal flasher assembly |
|
|
Harness or connector |
- |
|
Front turn signal light does not illuminate. |
Front turn signal light bulb |
- |
Harness or connector |
- |
|
Side turn signal light does not illuminate. |
Side turn signal light assembly |
|
Harness or connector |
- |
|
Rear turn signal light does not illuminate. |
Rear turn signal light bulb |
- |
Harness or connector |
- |
Symptom |
Suspected Area |
See page |
---|---|---|
Back-up light on one side does not illuminate. |
Back-up light bulb |
- |
Harness or connector |
- |
|
Both left and right back-up lights do not illuminate. |
BKUP LP fuse and ECU-IG NO. 1 fuse |
- |
BK/LP relay |
- |
|
Park/neutral position switch assembly (for A750E Automatic Transmission) |
|
|
Park/neutral position switch assembly (for A750F Automatic Transmission) |
|
|
Harness or connector |
- |
Symptom |
Suspected Area |
See page |
---|---|---|
Automatic light control system does not operate. |
Check for DTCs |
|
Headlight dimmer switch circuit |
|
|
IG signal circuit |
|
|
Main body ECU (Multiplex network body ECU) |
- |
Symptom |
Suspected Area |
See page |
---|---|---|
Light auto turn off system does not operate. |
Headlight dimmer switch circuit |
|
Door courtesy switch circuit (Driver side) |
|
|
IG signal circuit |
|
|
Main body ECU (Multiplex network body ECU) |
- |
Symptom |
Suspected Area |
See page |
---|---|---|
Daytime running light system does not operate (high beam headlights are normal). |
Headlight (High beam) circuit |
|
Headlight dimmer switch circuit |
|
|
IG signal circuit |
|
|
Main body ECU (Multiplex network body ECU) |
- |
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE BOOSTER ASSEMBLY
(a) Airtightness check
(1) Start the engine and stop it after 1 or 2 minutes. Slowly depress
the brake pedal several times.
If the pedal can be depressed to the floor the f ...
Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid
Valve SLU) (P2757)
DESCRIPTION
The ECM uses the signals from the throttle position sensor, air-flow meter, turbine
(input) speed sensor, output speed sensor and crankshaft position sensor to monitor
the engagement condition of the lock-up clutch.
Then the ECM compares th ...